Prefrontal Cortex Quotes

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I did not know that my entire personality, my entire being, could be discarded as the byproduct of my anatomy. What if I really am just someone with a large prefrontal cortex...and nothing more?
Veronica Roth (Insurgent (Divergent, #2))
The good part about having a mental disorder is having a valid reason for all the stupid things we do because of a damaged prefrontal cortex. However, the best part is seeing someone completely sane do the exact same things, without a valid excuse. This is the great equalizer of God and his little gift for all us crazy people to enjoy.
Shannon L. Alder
Meditation is blossoming of the prefrontal cortex to overcome the momentum of the nature. It is coming out of the loops of memories, patterns,fears, dreams and anger.
Amit Ray (Meditation: Insights and Inspirations)
Mindfulness increases activation of the medial prefrontal cortex and decreases activation of structures like the amygdala that trigger our emotional responses. This increases our control over the emotional brain.
Bessel van der Kolk (The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma)
The warmth and satisfaction of positive contact with the adult is often just as good as a psychostimulant in supplying the child’s prefrontal cortex with dopamine.
Gabor Maté (Scattered: How Attention Deficit Disorder Originates and What You Can Do About It)
The part of the brain most affected by early stress is the prefrontal cortex, which is critical in self-regulatory activities of all kinds, both emotional and cognitive. As a result, children who grow up in stressful environments generally find it harder to concentrate, harder to sit still, harder to rebound from disappointments, and harder to follow directions. And that has a direct effect on their performance in school.
Paul Tough (How Children Succeed: Grit, Curiosity, and the Hidden Power of Character)
Multitasking has been found to increase the production of the stress hormone cortisol as well as the fight-or-flight hormone adrenaline, which can overstimulate your brain and cause mental fog or scrambled thinking. Multitasking creates a dopamine-addiction feedback loop, effectively rewarding the brain for losing focus and for constantly searching for external stimulation. To make matters worse, the prefrontal cortex has a novelty bias, meaning that its attention can be easily hijacked by something new—the proverbial shiny objects
Daniel J. Levitin (The Organized Mind: Thinking Straight in the Age of Information Overload)
How do we regulate our emotions? The answer is surprisingly simple: by thinking about them. The prefrontal cortex allows each of us to contemplate his or her own mind, a talent psychologists call metacognition. We know when we are angry; every emotional state comes with self-awareness attached, so that an individual can try to figure out why he's feeling what he's feeling. If the particular feeling makes no sense—if the amygdala is simply responding to a loss frame, for example—then it can be discounted. The prefrontal cortex can deliberately choose to ignore the emotional brain.
Jonah Lehrer (How We Decide)
Left-nostril breathing shifts blood flow to the opposite side of the prefrontal cortex, the right area that plays a role in creative thought, emotions, formation of mental abstractions, and negative emotions.
James Nestor (Breath: The New Science of a Lost Art)
Recent brain scans have shed light on how the brain simulates the future. These simulation are done mainly in the dorsolateral prefrontal cortex, the CEO of the brain, using memories of the past. On one hand, simulations of the future may produce outcomes that are desirable and pleasurable, in which case the pleasure centers of the brain light up (in the nucleus accumbens and the hypothalamus). On the other hand, these outcomes may also have a downside to them, so the orbitofrontal cortex kicks in to warn us of possible dancers. There is a struggle, then, between different parts of the brain concerning the future, which may have desirable and undesirable outcomes. Ultimately it is the dorsolateral prefrontal cortex that mediates between these and makes the final decisions. (Some neurologists have pointed out that this struggle resembles, in a crude way, the dynamics between Freud's ego, id, and superego.)
Michio Kaku (The Future of the Mind: The Scientific Quest to Understand, Enhance, and Empower the Mind)
Indeed, brain scans done by scientists at Washington University in St. Louis indicate that areas used to recall memories are the same as those involved in simulating the future. In particular, the link between the dorsolateral prefrontal cortex and the hippocampus lights up when a person is engaged in planning for the future and remembering the past.
Michio Kaku (The Future of the Mind: The Scientific Quest to Understand, Enhance, and Empower the Mind)
You can change dopamine and the dorsal striatum with exercise. You can boost serotonin with a massage. You can make decisions and set goals to activate the ventromedial prefrontal cortex. You can reduce amygdala activity with a hug and increase anterior cingulate activity with gratitude. You can enhance prefrontal norepinephrine with sleep.
Alex Korb (The Upward Spiral: Using Neuroscience to Reverse the Course of Depression, One Small Change at a Time)
Meditate. Neuroscientists have found that monks who spend years meditating actually grow their left prefrontal cortex, the part of the brain most responsible for feeling happy. But don’t worry, you don’t have to spend years in sequestered, celibate silence to experience a boost. Take just five minutes each day to watch your breath go in and out.
Shawn Achor (The Happiness Advantage: The Seven Principles of Positive Psychology That Fuel Success and Performance at Work)
right nostril is a gas pedal. When you’re inhaling primarily through this channel, circulation speeds up, your body gets hotter, and cortisol levels, blood pressure, and heart rate all increase. This happens because breathing through the right side of the nose activates the sympathetic nervous system, the “fight or flight” mechanism that puts the body in a more elevated state of alertness and readiness. Breathing through the right nostril will also feed more blood to the opposite hemisphere of the brain, specifically to the prefrontal cortex, which has been associated with logical decisions, language, and computing. Inhaling through the left nostril has the opposite effect: it works as a kind of brake system to the right nostril’s accelerator. The left nostril is more deeply connected to the parasympathetic nervous system, the rest-and-relax side that lowers blood pressure, cools the body, and reduces anxiety. Left-nostril breathing shifts blood flow to the opposite side of the prefrontal cortex, to the area that influences creative thought and plays a role in the formation of mental abstractions and the production of negative emotions.
James Nestor (Breath: The New Science of a Lost Art)
The other way to train medics is to have them practice a skill so many times that it becomes automatic. So when the prefrontal cortex goes AWOL, when reasoning drops away, muscle memory, one hopes, will persist.
Mary Roach (Grunt: The Curious Science of Humans at War)
The prefrontal cortex takes in some outside information. The amygdala says I REMEMBER THAT! LAST TIME THAT SHIT HAPPENED, IT HURT! HURT SUCKS! And the brainstem tells the prefrontal cortex GET THE FUCK UP OUT OF THERE! WE DON’T LIKE TO HURT!
Faith G. Harper (Unfuck Your Brain: Using Science to Get Over Anxiety, Depression, Anger, Freak-outs, and Triggers)
The adolescent brain makes important new pathways and connections, but the cognitive functions of the prefrontal cortex, the seat of judgment, don’t mature until around age twenty-five. (The emotional control functions follow at around thirty-two!)
William Stixrud (The Self-Driven Child: The Science and Sense of Giving Your Kids More Control Over Their Lives)
The key arsenal of dark democracy is developing hatred and enmity towards the neighboring countries. Politicians do this just to block the prefrontal cortex or the wisdom brain of the mass and to activate the amygdala, the fear centers of the brain of the mass.
Amit Ray (Nuclear Weapons Free World - Peace on the Earth)
Bring your dopamine or adrenaline level down by activating other regions of the brain other than the prefrontal cortex.
David Rock (Your Brain at Work: Strategies for Overcoming Distraction, Regaining Focus, and Working Smarter All Day Long)
Non-Conformity The path of non-conformity never takes the shortest distance between two points. It's convoluted like our prefrontal cortex.
Beryl Dov
Comparing the patterns of brain activity between the two conditions within the same individual, we discovered that supervisory regions in the prefrontal cortex required for thoughtful judgments and controlled decisions had been silenced in their activity by a lack of sleep.
Matthew Walker (Why We Sleep: Unlocking the Power of Sleep and Dreams)
War hysteria and dark nationalism deactivates the mass prefrontal cortex ( the rational brain ) and activates the amygdala ( the fear centers ). They are the key tools for dark democracy.
Amit Ray (Nuclear Weapons Free World - Peace on the Earth)
For many men, just seeing a woman in a sexually objectifying pose, such as in a bikini, deactivates the part of the brain's prefrontal cortex, the part of the brain where thinking about people and their intentions, feelings and actions happens. Instead, the region of the brain that lights up... is the one that reacts to looking at inanimate objects, such as a pen or a ball.
Soraya Chemaly (Rage Becomes Her: The Power of Women's Anger)
It was as if the amygdala was the accelerator of defensive reactions and the prefrontal cortex the brake upon them (Figure 11.1). Malfunction of the brake makes the expression of the reactions hard to control. This idea has since been supported by research in animals and humans and is now commonly accepted.10
Joseph E. LeDoux (Anxious)
Brain scans prove that patients who’ve sustained significant childhood trauma have brains that look different from people who haven’t. Traumatized brains tend to have an enlarged amygdala—a part of the brain that is generally associated with producing feelings of fear. Which makes sense. But it goes further than that: For survivors of emotional abuse, the part of their brain that is associated with self-awareness and self-evaluation is shrunken and thin. Women who’ve suffered childhood sexual abuse have smaller somatosensory cortices—the part of the brain that registers sensation in our bodies. Victims who were screamed at might have an altered response to sound. Traumatized brains can result in reductions in the parts of the brain that process semantics, emotion and memory retrieval, perceiving emotions in others, and attention and speech. Not getting enough sleep at night potentially affects developing brains’ plasticity and attention and increases the risk of emotional problems later in life. And the scariest factoid, for me anyway: Child abuse is often associated with reduced thickness in the prefrontal cortex, the part of the brain associated with moderation, decision-making, complex thought, and logical reasoning. Brains do have workarounds. There are people without amygdalae who don’t feel fear. There are people who have reduced prefrontal cortices who are very logical. And other parts of the brain can compensate, make up the lost parts in other ways. But overall, when I looked at the breadth of evidence, the results felt crushing. The fact that the brain’s cortical thickness is directly related to IQ was particularly threatening to me. Even if I wasn’t cool, or kind, or personable, I enjoyed the narrative that I was at least effective. Intelligent. What these papers seemed to tell me is that however smart I am, I’m not as smart as I could have been had this not happened to me. The questions arose again: Is this why my pitches didn’t go through? Is this why my boss never respected me? Is this why I was pushed to do grunt work in the back room?
Stephanie Foo (What My Bones Know)
There is overwhelming evidence that meditation can increase focus and decrease anxiety, depression, and cortisol flooding. There is evidence that it decreases activation in the amygdala, one epicenter of fear in the brain, and increases activity in the prefrontal cortex. People who meditate are able to unstick themselves from cyclical, dangerous thinking and see things from a calmer, more positive perspective. The sympathetic nervous system, or the fight or flight system, is activated by stress. This is the system that gets us ready to run. The counter to this is the parasympathetic nervous system, the resting and digesting system. It lowers heart rate and blood pressure, slows breathing, and directly counters the stress response. Meditation activates the parasympathetic nervous system. It’s literally the antidote to stress. Plus, it’s what all the evolved, cool girls who look good without makeup are doing, according to social media.
Stephanie Foo (What My Bones Know)
The warmth and satisfaction of positive contact with the adult is often just as good as a psychostimulant in supplying the child’s prefrontal cortex with dopamine. Greater security means less anxiety and more focused attention. The unseen factor that remains constant in all situations is the child’s unconscious yearning for attachment, dating back to the first years of life.
Gabor Maté (Scattered: How Attention Deficit Disorder Originates and What You Can Do About It)
The neuroscientist Joseph LeDoux and his colleagues have shown that the only way we can consciously access the emotional brain is through self-awareness, i.e. by activating the medial prefrontal cortex, the part of the brain that notices what is going on inside us and thus allows us to feel what we’re feeling.5 (The technical term for this is “interoception”—Latin for “looking inside.”)
Bessel van der Kolk (The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma)
How poorly today’s North American way of life serves the needs of the human body may be gauged by the high levels of, say, heart disease, diabetes and obesity on this continent. The situation of the human brain is analogous. The miswired ADD circuits of the prefrontal cortex are as much the effect of unhealthful circumstances as are the cholesterol-plugged arteries of atherosclerotic coronary disease.
Gabor Maté (Scattered: How Attention Deficit Disorder Originates and What You Can Do About It)
In brain scans, music lights up the medial prefrontal cortex and triggers a memory that starts playing in your mind. All of a sudden you can see a place, a person, an incident. The strongest responses to music—the ones that elicit vivid memories—cause the greatest activity on brain scans.
Jodi Picoult (Sing You Home)
Scientists have learned that animals that experience prolonged stress have less activity in the parts of their brain that handle higher-order tasks—for example, the prefrontal cortex—and more activity in the primitive parts of their brain that are focused on survival, such as the amygdala.
Jim Kwik (Limitless: Upgrade Your Brain, Learn Anything Faster, and Unlock Your Exceptional Life)
There will come a time when a person you most likely pushed out through your vagina and nursed from your nipples, whose bottom you wiped, and whose snot and spit you cleaned up over several sleep-starved years will apprehend you with a mixture of boredom and irritation and say, ‘Get a life, Mum.’ This would be a good time to remember that a) violence never solved anything; b) teenagers don’t have a full brain yet – the prefrontal cortex that controls the ability to make important distinctions, like who controls the pocket money, only kicks in around the age of twenty-four; and c) you are, in fact, the adult.
JOANNE FEDLER
Here’s how to get started: 1. Sit still and stay put . Sit in a chair with your feet flat on the ground, or sit cross-legged on a cushion. Sit up straight and rest your hands in your lap. It’s important not to fidget when you meditate—that’s the physical foundation of self-control. If you notice the instinct to scratch an itch, adjust your arms, or cross and uncross your legs, see if you can feel the urge but not follow it. This simple act of staying still is part of what makes meditation willpower training effective. You’re learning not to automatically follow every single impulse that your brain and body produce. 2. Turn your attention to the breath. Close your eyes or, if you are worried about falling asleep, focus your gaze at a single spot (like a blank wall, not the Home Shopping Network). Begin to notice your breathing. Silently say in your mind “inhale” as you breathe in and “exhale” as you breathe out. When you notice your mind wandering (and it will), just bring it back to the breath. This practice of coming back to the breath, again and again, kicks the prefrontal cortex into high gear and quiets the stress and craving centers of your brain . 3. Notice how it feels to breathe, and notice how the mind wanders. After a few minutes, drop the labels “inhale/exhale.” Try focusing on just the feeling of breathing. You might notice the sensations of the breath flowing in and out of your nose and mouth. You might sense the belly or chest expanding as you breathe in, and deflating as you breathe out. Your mind might wander a bit more without the labeling. Just as before, when you notice yourself thinking about something else, bring your attention back to the breath. If you need help refocusing, bring yourself back to the breath by saying “inhale” and “exhale” for a few rounds. This part of the practice trains self-awareness along with self-control. Start with five minutes a day. When this becomes a habit, try ten to fifteen minutes a day. If that starts to feel like a burden, bring it back down to five. A short practice that you do every day is better than a long practice you keep putting off to tomorrow. It may help you to pick a specific time that you will meditate every day, like right before your morning shower. If this is impossible, staying flexible will help you fit it in when you can.
Kelly McGonigal (The Willpower Instinct: How Self-Control Works, Why It Matters, and What You Can Do To Get More of It)
Since then neuroscience research has shown that we possess two distinct forms of self-awareness: one that keeps track of the self across time and one that registers the self in the present moment. The first, our autobiographical self, creates connections among experiences and assembles them into a coherent story. This system is rooted in language. Our narratives change with the telling, as our perspective changes and as we incorporate new input. The other system, moment-to-moment self-awareness, is based primarily in physical sensations, but if we feel safe and are not rushed, we can find words to communicate that experience as well. These two ways of knowing are localized in different parts of the brain that are largely disconnected from each other.10 Only the system devoted to self-awareness, which is based in the medial prefrontal cortex, can change the emotional brain. In the groups I used to lead for veterans, I could sometimes see these two systems working side by side. The soldiers told horrible tales of death and destruction, but I noticed that their bodies often simultaneously radiated a sense of pride and belonging.
Bessel van der Kolk (The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma)
(When we force a smile, we activate facial muscles with our prefrontal cortex. But when we smile because we are in a good mood, our nerves are controlled by our limbic system, which activates a slightly different set of muscles. Our brains can tell the subtle difference between the two, which was beneficial for our evolution.)
Michio Kaku (The Future of the Mind: The Scientific Quest to Understand, Enhance, and Empower the Mind)
The right nostril is a gas pedal. When you’re inhaling primarily through this channel, circulation speeds up, your body gets hotter, and cortisol levels, blood pressure, and heart rate all increase. This happens because breathing through the right side of the nose activates the sympathetic nervous system, the “fight or flight” mechanism that puts the body in a more elevated state of alertness and readiness. Breathing through the right nostril will also feed more blood to the opposite hemisphere of the brain, specifically to the prefrontal cortex, which has been associated with logical decisions, language, and computing. Inhaling through the left nostril has the opposite effect: it works as a kind of brake system to the right nostril’s accelerator. The left nostril is more deeply connected to the parasympathetic nervous system, the rest-and-relax side that lowers blood pressure, cools the body, and reduces anxiety. Left-nostril breathing shifts blood flow to the opposite side of the prefrontal cortex, to the area that influences creative thought and plays a role in the formation of mental abstractions and the production of negative emotions.
James Nestor (Breath: The New Science of a Lost Art)
Given that the pre-frontal cortex is a key to our success as a species, consuming any amount of alcohol or other intoxicant seems really stupid.
Edward Slingerland (Drunk: How We Sipped, Danced, and Stumbled Our Way to Civilization)
Interestingly, pathological liars have atypically large amounts of white matter in the prefrontal cortex, indicating more complex wiring.
Robert M. Sapolsky (Behave: The Biology of Humans at Our Best and Worst)
Robert Sapolsky, a neurobiologist at Stanford University, has argued that the main job of the modern prefrontal cortex is to bias the brain—and therefore, you—toward doing “the harder thing.” When it’s easier to stay on the couch, your prefrontal cortex makes you want to get up and exercise. When it’s easier to say yes to dessert, your prefrontal cortex remembers the reasons for ordering tea instead. And when it’s easier to put that project off until tomorrow, it’s your prefrontal cortex that helps you open the file and make progress anyway.
Kelly McGonigal (The Willpower Instinct: How Self-Control Works, Why It Matters, and What You Can Do To Get More of It)
they arouse the inhibitory function. They wake up the cop, alert the underdeveloped and underactive circuitry of the prefrontal cortex. Recognizing that ADD is a problem of development rather than one of pathology
Gabor Maté (Scattered Minds: The Origins and Healing of Attention Deficit Disorder)
WILLPOWER EXPERIMENT: BREATHE YOUR WAY TO SELF-CONTROL You won’t find many quick fixes in this book, but there is one way to immediately boost willpower: Slow your breathing down to four to six breaths per minute. That’s ten to fifteen seconds per breath—slower than you normally breathe, but not difficult with a little bit of practice and patience. Slowing the breath down activates the prefrontal cortex and increases heart rate variability, which helps shift the brain and body from a state of stress to self-control mode. A few minutes of this technique will make you feel calm, in control, and capable of handling cravings or challenges.4 It’s
Kelly McGonigal (The Willpower Instinct: How Self-Control Works, Why It Matters, and What You Can Do To Get More of It)
Stanford psychologist Laura Carstensen, to name one such example, used an fMRI scanner to study the brain behavior of subjects presented with both positive and negative imagery. She found that for young people, their amygdala (a center of emotion) fired with activity at both types of imagery. When she instead scanned the elderly, the amygdala fired only for the positive images. Carstensen hypothesizes that the elderly subjects had trained the prefrontal cortex to inhibit the amygdala in the presence of negative stimuli. These elderly subjects were not happier because their life circumstances were better than those of the young subjects; they were instead happier because they had rewired their brains to ignore the negative and savor the positive. By skillfully managing their attention, they improved their world without changing anything concrete about it.
Cal Newport (Deep Work: Rules for Focused Success in a Distracted World)
In neurochemical terms, when he feels threatened or thwarted, Trump moves into a fight-or-flight state. His amygdala is triggered, his hypothalamic-pituitary-adrenal axis activates, and his prefrontal cortex—the part of the brain that makes us capable of rationality and reflection—shuts down. He reacts rather than reflects, and damn the consequences. This is what makes his access to the nuclear codes so dangerous and frightening.
Bandy X. Lee (The Dangerous Case of Donald Trump: 27 Psychiatrists and Mental Health Experts Assess a President)
Environmental influences also affect dopamine. From animal studies, we know that social stimulation is necessary for the growth of the nerve endings that release dopamine and for the growth of receptors that dopamine needs to bind to in order to do its work. In four-month-old monkeys, major alterations of dopamine and other neurotransmitter systems were found after only six days of separation from their mothers. “In these experiments,” writes Steven Dubovsky, Professor of Psychiatry and Medicine at the University of Colorado, “loss of an important attachment appears to lead to less of an important neurotransmitter in the brain. Once these circuits stop functioning normally, it becomes more and more difficult to activate the mind.” A neuroscientific study published in 1998 showed that adult rats whose mothers had given them more licking, grooming and other physical-emotional contact during infancy had more efficient brain circuitry for reducing anxiety, as well as more receptors on nerve cells for the brain’s own natural tranquilizing chemicals. In other words, early interactions with the mother shaped the adult rat’s neurophysiological capacity to respond to stress. In another study, newborn animals reared in isolation had reduced dopamine activity in their prefrontal cortex — but not in other areas of the brain. That is, emotional stress particularly affects the chemistry of the prefrontal cortex, the center for selective attention, motivation and self-regulation. Given the relative complexity of human emotional interactions, the influence of the infant-parent relationship on human neurochemistry is bound to be even stronger. In the human infant, the growth of dopamine-rich nerve terminals and the development of dopamine receptors is stimulated by chemicals released in the brain during the experience of joy, the ecstatic joy that comes from the perfectly attuned mother-child mutual gaze interaction. Happy interactions between mother and infant generate motivation and arousal by activating cells in the midbrain that release endorphins, thereby inducing in the infant a joyful, exhilarated state. They also trigger the release of dopamine. Both endorphins and dopamine promote the development of new connections in the prefrontal cortex. Dopamine released from the midbrain also triggers the growth of nerve cells and blood vessels in the right prefrontal cortex and promotes the growth of dopamine receptors. A relative scarcity of such receptors and blood supply is thought to be one of the major physiological dimensions of ADD. The letters ADD may equally well stand for Attunement Deficit Disorder.
Gabor Maté (Scattered: How Attention Deficit Disorder Originates and What You Can Do About It)
Throughout the human life span there remains a constant two-way interaction between psychological states and the neurochemistry of the frontal lobes, a fact that many doctors do not pay enough attention to. One result is the overreliance on medications in the treatment of mental disorders. Modern psychiatry is doing too much listening to Prozac and not enough listening to human beings; people’s life histories should be given at least as much importance as the chemistry of their brains. The dominant tendency is to explain mental conditions by deficiencies of the brain’s chemical messengers, the neurotransmitters. As Daniel J. Siegel has sharply remarked, “We hear it said everywhere these days that the experience of human beings comes from their chemicals.” Depression, according to the simple biochemical model, is due to a lack of serotonin — and, it is said, so is excessive aggression. The answer is Prozac, which increases serotonin levels in the brain. Attention deficit is thought to be due in part to an undersupply of dopamine, one of the brain’s most important neurotransmitters, crucial to attention and to experiencing reward states. The answer is Ritalin. Just as Prozac elevates serotonin levels, Ritalin or other psychostimulants are thought to increase the availability of dopamine in the brain’s prefrontal areas. This is believed to increase motivation and attention by improving the functioning of areas in the prefrontal cortex. Although they carry some truth, such biochemical explanations of complex mental states are dangerous oversimplifications — as the neurologist Antonio Damasio cautions: "When it comes to explaining behavior and mind, it is not enough to mention neurochemistry... The problem is that it is not the absence or low amount of serotonin per se that “causes” certain manifestations. Serotonin is part of an exceedingly complicated mechanism which operates at the level of molecules, synapses, local circuits, and systems, and in which sociocultural factors, past and present, also intervene powerfully. The deficiencies and imbalances of brain chemicals are as much effect as cause. They are greatly influenced by emotional experiences. Some experiences deplete the supply of neurotransmitters; other experiences enhance them. In turn, the availability — or lack of availability — of brain chemicals can promote certain behaviors and emotional responses and inhibit others. Once more we see that the relationship between behavior and biology is not a one-way street.
Gabor Maté (Scattered: How Attention Deficit Disorder Originates and What You Can Do About It)
Each time we check a Twitter feed or Facebook update, we encounter something novel and feel more connected socially (in a kind of weird impersonal cyber way) and get another dollop of reward hormones. But remember, it is the dumb, novelty-seeking portion of the brain driving the limbic system that induces this feeling of pleasure, not the planning, scheduling, higher-level thought centers in the prefrontal cortex. Make no mistake: E-mail, Facebook, and Twitter checking constitute a neural addiction
Daniel J. Levitin
Mischel’s next step made his studies iconic — he tracked the kids forward, seeing if marshmallow wait time predicted anything about their adulthoods . [...] Five-year-old champs at marshmallow patience averaged higher SAT scores in high school (compared with those who couldn’t wait). [...] Forty years post-marshmallow, they excelled at frontal function, had more PFC [Prefrontal cortex] activation during a frontal task, and had lower BMIs. A gazillion-dollar brain scanner doesn’t hold more predictive power than one marshmallow.
Robert M. Sapolsky
the parts of the brain corresponding to the limbic system (thought to respond only to more visceral, immediate rewards) were activated only when the decision involved comparing a reward today with one in the future. In contrast, the lateral prefrontal cortex (a more “calculating” part of the brain) responded with a similar intensity to all decisions, regardless of the timing of the options. Brains that work like this would produce a lot of failed good intentions. And indeed, we do see a lot of those, from New Year’s resolutions to gym memberships that lie unused.
Abhijit V. Banerjee (Poor Economics: A Radical Rethinking of the Way to Fight Global Poverty)
Classifying depression as an illness serves the psychiatric community and pharmaceutical corporations well; it also soothes the frightened, guilty, indifferent, busy, sadistic, and unschooled. To understand depression as a call for life-changes is not profitable. Stagnation is not a medical term. The 17.5 million Americans diagnosed as suffering a major depression in 1997 were mostly damned. (Psychobiological examinations confuse cause and symptom.) Deficient serotonergic functioning, ventral prefrontal cerebral cortex, dis-inhibition of impulsive-aggressive behavior, blah blah blah: the medical lexicon boils emotion from human being. Go take a drug, the doctor says. Pain is a biochemical phenomenon. Erase all memory.
Antonella Gambotto-Burke (The Eclipse: A Memoir of Suicide)
Stay in the now. Pay attention to the things that are happening now, and don’t pay attention to the things that aren’t happening now. Focusing on the present helps reduce anxiety and worry, because it decreases emotional, self-focused processing in the ventromedial prefrontal cortex. Attention to the present also increases dorsolateral and ventrolateral prefrontal activity, allowing these regions to calm the amygdala.15 Improving your ability to stay present, a practice known as “mindfulness,” helps enhance these activations and leads to long-term improvements in anxiety and worrying.
Alex Korb (The Upward Spiral: Using Neuroscience to Reverse the Course of Depression, One Small Change at a Time)
efficiently means providing slots in our schedules where we can maintain an attentional set for an extended period. This allows us to get more done and finish up with more energy. Related to the manager/worker distinction is that the prefrontal cortex contains circuits responsible for telling us whether we’re controlling something or someone else is. When we set up a system, this part of the brain marks it as self-generated. When we step into someone else’s system, the brain marks it that way. This may help explain why it’s easier to stick with an exercise program or diet that someone else sets up: We typically trust them as “experts” more than we trust ourselves. “My trainer told me to do three sets of ten reps at forty pounds—he’s a trainer, he must know what he’s talking about. I can’t design my own workout—what do I know?” It takes Herculean amounts of discipline to overcome the brain’s bias against self-generated motivational systems. Why? Because as with the fundamental attribution error we saw in Chapter 4, we don’t have access to others’ minds, only our own. We are painfully aware of all the fretting and indecision, all the nuances of our internal decision-making process that led us to reach a particular conclusion. (I really need to get serious about exercise.) We don’t have access to that (largely internal) process in others, so we tend to take their certainty as more compelling, in many cases, than our own. (Here’s your program. Do it every day.)
Daniel J. Levitin (The Organized Mind: Thinking Straight in the Age of Information Overload)
I theorize that humans are different from animals because we understand time. We have temporal consciousness in addition to spatial and social consciousness. The latest part of the brain to evolve is the prefrontal cortex, which lies just behind our forehead. It is constantly running simulations of the future.
Michio Kaku (The Future of Humanity: Terraforming Mars, Interstellar Travel, Immortality, and Our Destiny BeyondEarth)
Suppose you unexpectedly see a person you care about. Suddenly you feel the love you have, for that person. Let's follow the flow of information from the visual system through the brain to the point of the experience of love as best we can. First of all, the stimulus will flow from the visual system to the prefrontal cortex (putting an image of the loved one in working memory). The stimulus also reaches the explicit memory system of the temporal lobe and activates memories and integrates them with the image of the person. Simultaneously with these processes, the subcortical areas presumed to be involved in attachment will be activated (the exact paths by which the stimulus reaches these areas is not known, however). Activation of attachment circuits then impacts on working memory in several ways. One involves direct connections from the attachment areas to the prefrontal cortex (as with fear, it is the medial prefrontal region that is connected with subcortical attachment areas). Activation of attachment circuits also leads to activation of brain stem arousal networks, which then participate in the focusing of attention on the loved one by working memory. Bodily responses will also be initiated as outputs of attachment circuits, and contrast with the alarm responses initiated by fear and stress circuits. We approach rather than try to escape from or avoid the person, and these behavioral differences are accompanied by different physiological conditions within the body. This pattern of inputs to working memory from within the brain and from the body biases us more toward an open and accepting mode of processing than toward tension and vigilance. The net result in working memory is the feeling of love.
Joseph E. LeDoux
So you don’t have an inner lizard or an emotional beast-brain. There is no such thing as a limbic system dedicated to emotions. And your misnamed neocortex is not a new part; many other vertebrates grow the same neurons that, in some animals, organize into a cerebral cortex if key stages run for long enough. Anything you read or hear that proclaims the human neocortex, cerebral cortex, or prefrontal cortex to be the root of rationality, or says that the frontal lobe regulates so-called emotional brain areas to keep irrational behavior in check, is simply outdated or woefully incomplete. The triune brain idea and its epic battle between emotion, instinct, and rationality is a modern myth.
Lisa Feldman Barrett (Seven And A Half Lessons About The Brain)
Each of us—whether a loved daughter or not—has experienced hurts, slights, and disappointments that, even if half-forgotten or mostly unseen, remain remembered and a part of us nonetheless. Sometimes they are rooted in the deep past but, equally, they may be part of the lived present, and there may be moments when our own unresolved feelings may endanger the equilibrium of our relationships with our daughters. From the point of view of brain science, whether we address those feelings from what Siegel and Hartzell call the “high road”—the powers of reflection embedded in the prefrontal cortex of the brain—or the “low road”—automatic responses embedded in the past applied to the situation at hand—will make all the difference.
Peg Streep
So you aren’t still in love with her?” I ask, eyebrows up, curious. “You’re over it? Over her? Sayonara, Daisy—” “Well—” His brows bend in the middle. BJ gives me a gentle but firm smile. “Magnolia.” “Oh—” I look at my fiancé. “Too much?” He gives me a tight smile. “You could try not talking for twenty seconds. See what happens.” I don’t do that. Instead I give Tiller an apologetic smile. “See, I was recently diagnosed with ADHD—” “Oh.” Tiller nods, not knowing what to say. “It impairs my prefrontal cortex—something about a neurotransmitter in the brain and then also lower levels of dopamine—which is so rude—don’t you think that’s so rude? Dopamine’s pretty nice—my doctor said it’s probably why I love shopping so much. And sex—
Jessa Hastings (Magnolia Parks: Into the Dark (Magnolia Parks Universe, #5))
Notice what you notice. You can’t control the random bits of information that pop into your head. But you can start to notice your biases. When you get annoyed that you’re stuck at a red light think, Oh, that’s interesting. I noticed this red light, but I didn’t notice the last green light I made. In short, try practicing nonjudgmental awareness. Nonjudgmental awareness is a form of mindfulness that simply means noticing without reacting emotionally, even when things don’t turn out as you expected. Awareness does not require emotion, because emotion and awareness are mediated by different brain regions. Noticing a mistake might automatically trigger the emotional amygdala, but becoming aware of your own reaction activates the prefrontal cortex, which calms the amygdala.
Alex Korb (The Upward Spiral: Using Neuroscience to Reverse the Course of Depression, One Small Change at a Time)
Some people have more highly activated left prefrontal cortexes and some people have more highly activated right prefrontal cortexes. (This has nothing to do with the question of hemispheric dominance that determines whether you are right-handed or left-handed, which occurs in other areas of the brain.) The majority of people have higher left-side activation. People with higher right-side activation tend to experience more negative emotion than people with higher left-side activation. Right-side activation also predicts how easily someone’s immune system will become depressed. The right-brain activation is also correlated with high baseline levels of cortisol, the stress hormone. Though the settled patterns of activation do not stabilize until adulthood, babies with greater right-side activation will become frantic when their mothers leave a room; babies with strong left-side activation will be more likely to explore the room without apparent distress. In babies, however, the balance is subject to change. “The likelihood,” Davidson says, “is that there’s more plasticity in the system in the early years of life, more opportunity for the environment to sculpt this circuitry.
Andrew Solomon (The Noonday Demon: An Atlas of Depression)
Compounding this is the fact that the brain’s prefrontal cortex—the large part of the forebrain that lets us plan, think logically, and get work done—has a built-in “novelty bias.” Whenever we switch between tasks, it rewards us with dopamine—that amazing pleasure chemical that rushes through our brain whenever we devour a medium-sized pizza, accomplish something awesome, or have a drink or two after work.
Chris Bailey (Hyperfocus: How to Manage Your Attention in a World of Distraction)
Brain scans prove that patients who’ve sustained significant childhood trauma have brains that look different from those of people who haven’t.[8] Traumatized brains tend to have an enlarged amygdala—a part of the brain that is generally associated with producing feelings of fear. Which makes sense. But it goes further than that: For survivors of emotional abuse, the part of their brain that is associated with self-awareness and self-evaluation is shrunken and thin. Women who’ve suffered childhood sexual abuse have smaller somatosensory cortices—the part of the brain that registers sensation in our bodies. Victims who were screamed at might have an altered response to sound. Trauma can result in reductions in the parts of the brain that process semantics, emotion and memory retrieval, perceiving emotions in others, and attention and speech. Not getting enough sleep at night potentially affects developing brains’ plasticity and attention and increases the risk of emotional problems later in life. And the scariest factoid, for me anyway: Child abuse is often associated with reduced thickness in the prefrontal cortex, the part of the brain associated with moderation, decision-making, complex thought, and logical reasoning.
Stephanie Foo (What My Bones Know: A Memoir of Healing from Complex Trauma)
Soft power. When you need to speak up, be artful. Take care of your partner as best you can by explicitly cherishing them and your relationship. Start by letting them know you need repair, is this a good time? If your partner agrees to talk, thank them, start off with an appreciation - something you are thankful for that your partner has said or done, even if it's just that you appreciate their willingness to sit down and talk. Then state your intentions - a good thing to do generally: "I want to clear the air between us so that I can feel closer to you." Center yourself in your Wise Adult, prefrontal cortex, and remember love. Recall that the person you're addressing is someone you love, or at least care for, and in any case, you will have to live with them. Remembering love is a recentering practice. You're speaking to someone you care about in the hopes of making things better.
Terrence Real (Us: Getting Past You and Me to Build a More Loving Relationship (Goop Press))
If you are one of those people who can’t hold a lot in mind at once—you lose focus and start daydreaming in lectures, and have to get to someplace quiet to focus so you can use your working memory to its maximum—well, welcome to the clan of the creative. Having a somewhat smaller working memory means you can more easily generalize your learning into new, more creative combinations. Because you’re learning new, more creative combinations. Having a somewhat smaller working memory, which grows from the focusing abilities of the prefrontal cortex, doesn’t lock everything up so tightly, you can more easily get input from other parts of your brain. These other areas, which include the sensory cortex, not only are more in tune with what’s going on in the environment, but also are the source of dreams, not to mention creative ideas. You may have to work harder sometimes (or even much of the time) to understand what’s going on, but once you’ve got something chunked, you can take that chunk and turn it outside in and inside round—putting it through creative paces even you didn’t think you were capable of! Here’s another point to put into your mental chunker: Chess, that bastion of intellectuals, has some elite players with roughly average IQs. These seemingly middling intellects are able to do better than some more intelligent players because they practice more. That’s the key idea. Every chess player, whether average or elite, grows talent by practicing. It is the practice—particularly deliberate practice on the toughest aspects of the material—that can help lift average brains into the realm of those with more “natural” gifts. Just as you can practice lifting weights and get bigger muscles over time, you can also practice certain mental patterns that deepen and enlarge in your mind.
Barbara Oakley
Collectively this work suggests that the prefrontal cortex and the amygdala are reciprocally related. That is, in order for the amygdala to respond to fear reactions, the prefrontal region has to be shut down. By the same logic, when the prefrontal region is active, the amygdala would be inhibited, making it harder to express fear. Pathological fear, then, may occur when the amygdala is unchecked by the prefrontal cortex, and treatment of pathological fear may require that the patient learn to increase activity in the prefrontal region so that the amygdala is less free to express fear. Clearly, decision-making ability in emotional situations is impaired in humans with damage to the medial and ventral prefrontal cortex, and abnormalities there also may predispose people to develop fear and anxiety disorders. These abnormalities could be due to genetic or epigenetic organization of prefrontal synapses or to experiences that subtly alter prefrontal synaptic connections. Indeed, the behavior of animals with abmormalities of the medial prefrontal cortex is reminiscent of humans with anxiety disorders: they develop fear reactions that are difficult to regulate. Although objective information about the world may indicate that a situation is not dangerous, because they cannot properly regulate fear circuits, they experience fear and anxiety in these safe situations.
Joseph E. LeDoux
Anything perceived as a threat trips the amygdala—the brain’s hand-wringing sentry—to set in motion the biochemical cascade known as the fight-or-flight response. Bruce Siddle, who consults in this area and sits on the board of Strategic Operations, prefers the term “survival stress response.” Whatever you wish to call it, here is a nice, concise summary, courtesy of Siddle: “You become fast, strong, and dumb.” Our hardwired survival strategy evolved back when threats took the form of man-eating mammals, when hurling a rock superhumanly hard or climbing a tree superhumanly fast gave you the edge that might keep you alive. A burst of adrenaline prompts a cortisol dump to the bloodstream. The cortisol sends the lungs into overdrive to bring in more oxygen, and the heart rate doubles or triples to deliver it more swiftly. Meanwhile the liver spews glucose, more fuel for the feats at hand. To get the goods where the body assumes they’re needed, blood vessels in the large muscles of the arms and legs dilate, while vessels serving lower-priority organs (the gut, for example, and the skin) constrict. The prefrontal cortex, a major blood guzzler, also gets rationed. Good-bye, reasoning and analysis. See you later, fine motor skills. None of that mattered much to early man. You don’t need to weigh your options in the face of a snarling predator, and you don’t have time.
Mary Roach (Grunt: The Curious Science of Humans at War)
But young children, whose prefrontal cortexes have barely begun to ripen, can’t conceive of a future, which means they spend their lives in the permanent present, a forever feeling of right now. At times, this is a desirable state of consciousness; indeed, for meditators, it’s the ultimate aspiration. But living in the permanent present is not a practical parenting strategy. “Everybody would like to be in the present,” says Daniel Gilbert, a social psychologist at Harvard and author of the 2006 best-seller Stumbling on Happiness. “Certainly it’s true that there is an important role for being present in our lives. All the data say that. My own research says that.” The difference is that children, by definition, only live in the present, which means that you, as a parent, don’t get much of a chance. “Everyone is moving at the same speed toward the future,” he says. “But your children are moving at that same speed with their eyes closed. So you’re the ones who’ve got to steer.” He thinks about this for a moment. “You know, back in the early seventies, I hung out with a lot of people who wanted to live in the present. And it meant that no one paid the rent.” In effect, parents and small children have two completely different temporal outlooks. Parents can project into the future; their young children, anchored in the present, have a much harder time of it. This difference can be a formula for heartbreak for a small child.
Jennifer Senior (All Joy and No Fun: The Paradox of Modern Parenthood)
But Berns’s study also shed light on exactly why we’re such conformists. When the volunteers played alone, the brain scans showed activity in a network of brain regions including the occipital cortex and parietal cortex, which are associated with visual and spatial perception, and in the frontal cortex, which is associated with conscious decision-making. But when they went along with their group’s wrong answer, their brain activity revealed something very different. Remember, what Asch wanted to know was whether people conformed despite knowing that the group was wrong, or whether their perceptions had been altered by the group. If the former was true, Berns and his team reasoned, then they should see more brain activity in the decision-making prefrontal cortex. That is, the brain scans would pick up the volunteers deciding consciously to abandon their own beliefs to fit in with the group. But if the brain scans showed heightened activity in regions associated with visual and spatial perception, this would suggest that the group had somehow managed to change the individual’s perceptions. That was exactly what happened—the conformists showed less brain activity in the frontal, decision-making regions and more in the areas of the brain associated with perception. Peer pressure, in other words, is not only unpleasant, but can actually change your view of a problem.
Susan Cain (Quiet: The Power of Introverts in a World That Can't Stop Talking)
What’s more, AI researchers have begun to realize that emotions may be a key to consciousness. Neuroscientists like Dr. Antonio Damasio have found that when the link between the prefrontal lobe (which governs rational thought) and the emotional centers (e.g., the limbic system) is damaged, patients cannot make value judgments. They are paralyzed when making the simplest of decisions (what things to buy, when to set an appointment, which color pen to use) because everything has the same value to them. Hence, emotions are not a luxury; they are absolutely essential, and without them a robot will have difficulty determining what is important and what is not. So emotions, instead of being peripheral to the progress of artificial intelligence, are now assuming central importance. If a robot encounters a raging fire, it might rescue the computer files first, not the people, since its programming might say that valuable documents cannot be replaced but workers always can be. It is crucial that robots be programmed to distinguish between what is important and what is not, and emotions are shortcuts the brain uses to rapidly determine this. Robots would thus have to be programmed to have a value system—that human life is more important than material objects, that children should be rescued first in an emergency, that objects with a higher price are more valuable than objects with a lower price, etc. Since robots do not come equipped with values, a huge list of value judgments must be uploaded into them. The problem with emotions, however, is that they are sometimes irrational, while robots are mathematically precise. So silicon consciousness may differ from human consciousness in key ways. For example, humans have little control over emotions, since they happen so rapidly and because they originate in the limbic system, not the prefrontal cortex of the brain. Furthermore, our emotions are often biased.
Michio Kaku (The Future of the Mind: The Scientific Quest to Understand, Enhance, and Empower the Mind)
But what separates human consciousness from the consciousness of animals? Humans are alone in the animal kingdom in understanding the concept of tomorrow. Unlike animals, we constantly ask ourselves “What if?” weeks, months, and even years into the future, so I believe that Level III consciousness creates a model of its place in the world and then simulates it into the future, by making rough predictions. We can summarize this as follows: Human consciousness is a specific form of consciousness that creates a model of the world and then simulates it in time, by evaluating the past to simulate the future. This requires mediating and evaluating many feedback loops in order to make a decision to achieve a goal. By the time we reach Level III consciousness, there are so many feedback loops that we need a CEO to sift through them in order to simulate the future and make a final decision. Accordingly, our brains differ from those of other animals, especially in the expanded prefrontal cortex, located just behind the forehead, which allows us to “see” into the future. Dr. Daniel Gilbert, a Harvard psychologist, has written, “The greatest achievement of the human brain is its ability to imagine objects and episodes that do not exist in the realm of the real, and it is this ability that allows us to think about the future. As one philosopher noted, the human brain is an ‘anticipation machine,’ and ‘making the future’ is the most important thing it does.” Using brain scans, we can even propose a candidate for the precise area of the brain where simulation of the future takes place. Neurologist Michael Gazzaniga notes that “area 10 (the internal granular layer IV), in the lateral prefrontal cortex, is almost twice as large in humans as in apes. Area 10 is involved with memory and planning, cognitive flexibility, abstract thinking, initiating appropriate behavior, and inhibiting inappropriate behavior, learning rules, and picking out relevant information from what is perceived through the senses.” (For this book, we will refer to this area, in which decision making is concentrated, as the dorsolateral prefrontal cortex, although there is some overlap with other areas of the brain.)
Michio Kaku (The Future of the Mind: The Scientific Quest to Understand, Enhance, and Empower the Mind)
For centuries, Eastern religions have been telling us that it’s our egos that trap us in suffering. In the 5th century, Indian adept Vasubandu wrote, “So long as you grasp at the self, you stay bound to the world of suffering.” These spiritual traditions emphasize meditation, contemplation, altruistic service, and compassion as ways to escape the ego. Our emotions and thoughts become less “sticky” and “I, me, mine” “lose their self-hypnotic power.” That’s how we stop selfing. Once we drop our identification with the ego-self enshrined in the prefrontal cortex and enter Bliss Brain, we make the subject-object shift. We can ask ourselves, “If I’m not my thoughts, and I’m the one thinking those thoughts, then who might I be?” This perspective takes us out of selfing and into the present moment. In the meditative present, we can connect with the great nonlocal field of consciousness. Different traditions have different names for it: the Tao, the Anima Mundi, the Universal Mind, God, the All That Is. We then see our local self as the object. With this view from the mountaintop, we’re able to perceive new possibilities of what we might become, this time from the perspective of oneness with the universe. Free of the drag of the ego, uncoupled from the chatter of the demon, the conditioned personalities we inherited from our history and past experiences no longer confine our sense of self.
Dawson Church (Bliss Brain: The Neuroscience of Remodeling Your Brain for Resilience, Creativity, and Joy)