Cerebral Cortex Quotes

For the first time in longer than I can remember, I feel peaceful. Not happy. Not sad. Not anxious. Not horny. Just all the higher parts of my brain closing up shop. The cerebral cortex. The cerebellum. That's where my problem is. I'm now simplifying myself. Somewhere balanced in the perfect middle between happiness and sadness. Because sponges never have a bad day.

Civilization is a product of the cerebral cortex.

It's also awkward to be so short you can see all the way up into someone's cerebral cortex, but welcome to my life.

The lie that abortion is murder is right-wing propaganda designed to demonize Democrats. Abortion is legal all over the world because a fetus without a cerebral cortex cannot think or feel before the 27th week. According to the CDC almost all abortions happen before the 13th week.

The brain does much more than recollect. It compares, synthesizes, analyzes, generates abstractions. We must figure out much more than our genes can know. That is why the brain library is some ten thousand times larger than the gene library. Our passion for learning, evident in the behaviour of every toddler, is the tool for our survival. Emotions and ritualized behaviour patterns are built deeply into us. They are part of our humanity. But they are not characteristically human. Many other animals have feelings. What distinguishes our species is thought. The cerebral cortex is a liberation. We need no longer be trapped in the genetically inherited behaviour patterns of lizards and baboons. We are, each of us, largerly responsible for what gets put into our brains, for what, as adults, we wind up caring for and knowing about. No longer at the mercy of the reptile brain, we can change ourselves.

Judging by your face, the what-the-fuck nodes in your cerebral cortex must be a real light show.

We are part of nature, a product of a long evolutionary journey. To some degree, we carry the ancient oceans in our blood. … Our brains and nervous systems did not suddenly spring into existence without long antecedents in natural history. That which we most prize as integral to our humanity - our extraordinary capacity to think on complex conceptual levels - can be traced back to the nerve network of primitive invertebrates, the ganglia of a mollusk, the spinal cord of a fish, the brain of an amphibian, and the cerebral cortex of a primate.

Beatrice closed her eyes and dreamed whatever flowers dream. Beatrice: That's very poetic, but they don't dream anything. Flowers have no cerebral cortex.

Then you and that mutt hijacked my thoughts and started dancing Gangnam Style on my cerebral cortex.

Language and hearing are seated in the cerebral cortex, the folded gray matter that covers the first couple of millimeters of the outer brain like wrapping paper. When one experiences silence, absent even reading, the cerebral cortex typically rests. Meanwhile, deeper and more ancient brain structures seem to be activated--the subcortical zones. People who live busy, noisy lives are rarely granted access to these areas. Silence, it appears, is not the opposite of sound. It is another world altogether, literally offering a deeper level of thought, a journey to the bedrock of the self.

We live in the Age of the Higher Brain, the cerebral cortex that has grown enormously over the last few millennia, overshadowing the ancient, instinctive lower brain. The cortex is often called the new brain, yet the old brain held sway in humans for millions of years, as it does today in most living things. The old brain can’t conjure up ideas or read. But it does possess the power to feel and, above all, to be. It was the old brain that caused our forebears to sense the closeness of a mysterious presence everywhere in Nature.

Unlike most other language — which is stored in cerebral cortex, the brain’s center for higher learning — curse words are stored in the limbic system, our most basic, lizard brain level.

Let me tell you, though: being the smartest boy in the world wasn’t easy. I didn’t ask for this. I didn’t want this. On the contrary, it was a huge burden. First, there was the task of keeping my brain perfectly protected. My cerebral cortex was a national treasure, a masterpiece of the Sistine Chapel of brains. This was not something that could be treated frivolously. If I could have locked it in a safe, I would have. Instead, I became obsessed with brain damage.

So many cells in my body have died and regenerated since the days of the Dream House. My blood and taste buds and skin have long since re-created themselves. My fat still remembers, but just barely — within a few years, it will have turned itself over completely. My bones too. But my nervous system remembers. The lenses of my eyes. My cerebral cortex with its memory and language and consciousness. They will last forever, or at least as long as I do. They can still climb onto the witness stand.

That big glorious mountain. For one transitory moment, I think I may have actually seen it”. For one flash, the Mommy had seen the mountain without thinking of logging and ski resorts and avalanches, managed wildlife, plate tectonic geology, microclimates, rain shadow, or yin-yang locations. She’d seen the mountain without the framework of language. Without the cage of associations. She’d seen it without looking through the lens of everything she knew was true about mountains. What she’d seen in that flash wasn’t even a “mountain”. It wasn’t a natural resource. It had no name. “That’s the big goal”, she said. “To find a cure for knowledge”. For education. For living in our heads. Ever since the story of Adam and Eve in the bible, humanity had been a little too smart for its own good, the Mommy said. Ever since eating that apple. Her goal was to find, if not a cure, then at least a treatment that would give people back their innocence. “The cerebral cortex, the cerebellum”, she said, “that’s where your problem is”. If she could just get down to using only her brain stem, she’d be cured. This would be somewhere beyond happiness and sadness. You don’t see fish agonized by wild mood swings. Sponges never have a bad day.

There is no other species on Earth that does science. It is, so far, entirely a human invention, evolved by natural selection in the cerebral cortex for one simple reason: it works. It is not perfect. It can be misused. It is only a tool. But it is by far the best tool we have, self-correcting, ongoing, applicable to everything.

That baby sees the world with completeness that you and I will never know again. His doors of perception have not yet been closed. He still experiences the moment he lives in. The inevitable bullshit hasn't constipated his cerebral cortex yet. He still sees the world as it really is, while we sit here, left with only a dim historical version of it manufactured for us by words and official bullshit, and so forth and so on..

The cerebral cortex is a liberation. We need no longer be trapped in the genetically inherited behavior patterns of lizards and baboons. We are, each of us, largely responsible for what gets put into our brains, for what, as adults, we wind up caring for and knowing about. No longer at the mercy of the reptile brain, we can change ourselves.

When I was cooking I enjoyed a sense of being ‘out’ of myself. The action of dicing vegetables and warming oil made my hands tingle and my thoughts switch to a different hemisphere, right brain rather than left, or left rather than right. In my mind there were many rooms and, just as I still got lost in the labyrinth of corridors at college, I often found myself lost, with a sense of déjà vu, in some obscure part of my cerebral cortex, the part of the brain that plays a key role in perceptual awareness, attention and memory. Everything I had lived through or imagined or dreamed appeared to have been backed up on a video clip and then scattered among those alien rooms. I could stumble into any number of scenes, from the horrifically sexual, horror-movie sequences that were crude and painful, to visualizing Grandpa polishing his shoes.

Destiny is no more than the fulfillment of purposive potentialities within us. The human cerebral cortex is a single sheet composed of more neurons than there are stars in the known universe folded like a paper crane to fit in a quart-sized cubbyhole; there is enough potential energy in a single person that if released would equal thirty hydrogen bombs. Destiny is nothing to sneeze at!

We, through the cerebral cortex, add the consciousness, spirit and rationality, to this dolphin brained human body avatar. We control our destiny and this body can become a servant of our conscious will, once we learn to communicate fully with it. We are called to bridge the gap between our conscious mind and the subconscious mind.

feel an emotion it is necessary but not sufficient that neural signals from viscera, from muscles and joints, and from neurotransmitter nuclei—all of which are activated during the process of emotion—reach certain subcortical nuclei and the cerebral cortex. Endocrine and other chemical signals also reach the central nervous system via the bloodstream among other routes.

Attention words. A single word wasn't enough. Not even for a particular segment. The brain had defenses, filters evolved over millions of years to protect against manipulation. The first was perception, the process of funneling an ocean of sensory input down to a few key data packages worthy of study by the cerebral cortex. When data got by the perception filter, it received attention. And she saw now that it must be like that all the way down: There must be words to attack each filter. Attention words and then maybe desire words and logic words and urgency words and command words. This was what they were teaching her. How to craft a string of words that would disable the filters one by one, unlocking each mental tumbler until the mind's last door swung open.

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.

I can't dial a setting that stimulates my cerebral cortex into wanting to dial! If I don't want to dial, I don't want to dial that most of all, because then I will want to dial, and wanting to dial is right now the most alien drive I can imagine; I just want to sit here on the bed and stare at the floor.

I deal in the ideal—and that's an idea. Average people collect things, but I gather my thoughts, and my brain is my warehouse. But what about a duck? It has one word on its mind, quack, which is its answer to every question, so does that mean it's got the most efficiently organized cerebral cortex in the universe?

Human memories were organized in the hippocampus region, but recent research suggested the information was only stored there on a short-term basis. Later, the hippocampus recoded these memories as electrical patterns across billions of synapses and distributed them for long-term storage over the entire cerebral cortex.

Chorea—a twinkling movement or motor scintillation—does not have its origin in the cerebral cortex, but in the deeper parts of the brain, the basal ganglia and upper brainstem, which are the parts that mediate normal awakening. Thus these observations of chorea during migraine support the notion that migraine is a form of arousal disorder, something located in the strange borderlands of sleep—a disorder which has its origin deep in the brainstem, and not superficially, in the cortical mantle, as is often supposed (a

The minds of others are stranger depths to employ our hearts to than our own wonderland of cerebral cortex.

the cerebral cortex that has grown enormously over the last few millennia, overshadowing the ancient, instinctive lower brain.

In other words, in the ADD group electrical activity in the cerebral cortex, or gray matter, slowed down just when it would have been required to speed up.

My subconscious had registered something worth being concerned about, but this information had not yet travelled to my cerebral cortex, my thinking brain.

I once read that if the folds in the cerebral cortex were smoothed out it would cover a card table. That seemed quite unbelievable but it did make me wonder just how big the cortex would be if you ironed it out. I thought it might just about cover a family-sized pizza: not bad, but no card-table. I was astonished to realize that nobody seems to know the answer. A quick search yielded the following estimates for the smoothed out dimensions of the cerebral cortex of the human brain. An article in Bioscience in November 1987 by Julie Ann Miller claimed the cortex was a "quarter-metre square." That is napkin-sized, about ten inches by ten inches. Scientific American magazine in September 1992 upped the ante considerably with an estimated of 1 1/2 square metres; thats a square of brain forty inches on each side, getting close to the card-table estimate. A psychologist at the University of Toronto figured it would cover the floor of his living room (I haven't seen his living room), but the prize winning estimate so far is from the British magazine New Scientist's poster of the brain published in 1993 which claimed that the cerebral cortex, if flattened out, would cover a tennis court. How can there be such disagreement? How can so many experts not know how big the cortex is? I don't know, but I'm on the hunt for an expert who will say the cortex, when fully spread out, will cover a football field. A Canadian football field.

Cannabis affects the brain because brain cells themselves produce cannabis-like neurotransmitters. The first such compound to be identified was christened anandamide, ananda being Sanskrit for “bliss.” The proteins that transmit anandamide’s message to the brain, the receptors, are mainly located in the striatum (hence the blissful feeling) and in the cerebellum (hence the unsteady gait after taking marijuana), in the cerebral cortex (hence the problems with association, the fragmented thoughts and confusion), and in the hippocampus (hence the memory impairment). But there are no receptors in the brain stem areas that regulate blood pressure and breathing. That’s why it’s impossible to take an overdose of cannabis, as opposed to opiates.

Memories of a pleasurable event are stored in the cerebral cortex so we won’t forget them. It may sound strange, but in a way, you could say the brain creates addictions for our survival.

The cerebral cortex is the bark on the brain—incredibly, less than one-fifth of an inch thick—where most of the magic happens in human beings: consciousness, language, perception, thought.

Another woman with an epileptic focus in the cerebral cortex refused both medication and the option of an operation, as she enjoyed the feeling of orgasm that preceded her epileptic attacks.

There is no future in it, Will Henry,” he said pensively. “The future belongs to science. The fate of our species will be determined by the likes of Edison and Tesla, not Wordsworth or Whitman. The poets will lie upon the shores of Babylon and weep, poisoned by the fruit that grows from the ground where the Muses’ corpses rot. The poets’ voices will be drowned out by the gears of progress. I foresee the day when all sentiment is reduced to a chemical equation in our brains—hope, faith, even love—their exact locations pinned down and mapped out, so we may point to it and say, ‘Here, in this region of our cerebral cortex, lies the soul.’ 

So many cells in my body have died and regenerated since the days of the Dream House. My blood and taste buds and skin have long since re-created themselves. My fat still remembers, but just barely—within a few years, it will have turned itself over completely. My bones too. But my nervous system remembers. The lenses of my eyes. My cerebral cortex, with its memory and language and consciousness. They will last forever, or at least as long as I do.

What exactly is the role of the cerebral cortex in producing consciousness? The cortex expands the number of ways in which we can experience the world, which allows for a vast variety of possible conscious experiences and responses.

What is more accurate is that unconscious gating defaults act in concert with environmental and cognitive demands and the needs of the cerebral cortex and thus are continually in flux depending on circumstances and environmental inputs.

We possess no criterion which enables us to distinguish exactly between a psychical process and a physiological one, between an act occurring in the cerebral cortex and one occurring in the sub-cortical substance; for 'consciousness', whatever that may be, is not attached to every activity of the cerebral cortex, nor is it always attached in an equal degree to any particular one of its activities; it is not a thing which is bound up with any locality in the nervous system.

our primate ancestors was the development of a larger cerebral cortex as well as the development of increased volume of gray-matter tissue in certain regions of the brain.32 This change occurred, however, on the very slow timescale of biological evolution and still involves an inherent

Richard stood transfixed for a moment or two, wiped his forehead again, and gently replaced the phone as if it were an injured hamster. His brain began to buzz gently and suck its thumb. Lots of little synapses deep inside his cerebral cortex all joined hands and started dancing around and singing nursery rhymes.

Mountain Girl tries to concentrate, but the words swim like great waves of... The words swim by and she hears the sound but it is like her cerebral cortex is tuned out to the content of it. Her mind keeps rolling and spinning over another set of data, always the same. Like — the eternal desperate calculation. In short, Mountain Girl is pregnant.

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.

Most days now I have a headache and I worry that some tiny Amazonian animal is eating a hole through my cerebral cortex, and the only thing I want in the world, the only thing that would give meaning or sense to this existence, would be the chance to lay my head in your lap. You would put your hand in my hair, I know you would do that for me. Such is your bravery, such is my good fortune.

When one experiences silence, absent even reading, the cerebral cortex typically rests. Meanwhile, deeper and more ancient brain structures seem to be activated—the subcortical zones. People who live busy, noisy lives are rarely granted access to these areas. Silence, it appears, is not the opposite of sound. It is another world altogether, literally offering a deeper level of thought, a journey to the bedrock of the self.

It is the world’s first fully functional noninvasive brain-computer interface. It allows an OASIS user to see, hear, smell, taste, and feel their avatar’s virtual environment, via signals transmitted directly into their cerebral cortex. The headset’s sensor array also monitors and interprets its wearer’s brain activity, allowing them to control their OASIS avatar just as they do their physical body—simply by thinking about it.

We walk through another part of the building. While we wait for an elevator, Dr. Kenyon unfolds a dinner-size napkin and holds it up in the air in front of his forehead. “This is about the size of your brain, spread out,” he says. “The part that matters. The cerebral cortex.” The 100 billion neurons there are also known as the brain’s gray matter. “And the human brain does things beyond anyone’s comprehension. Evolution created the smartest machine in this world.

Penfield wrote, “Consciousness continues, regardless of what area of cerebral cortex is removed. On the other hand consciousness is inevitably lost when the function of the higher brain stem (diencephalon*) is interrupted by injury, pressure, disease, or local epileptic discharge.” Yet he is quick to qualify that “to suggest that such a block of brain exists where consciousness is located, would be to call back Descartes and to offer him a substitute for the pineal gland as a seat for the soul.”6

The cortex craves for information, but it can longer contain and creatively process it all. How can a body subjectively and simultaneous grasp both nanoseconds and nebulae? THE CORTEX THAT CANNOT COPE RESORTS TO SPECIALIZATION. Specialization, once a maneuver methodically to collect information, now is a manifestation of information overloads. The role of information has changed. Once justified as a means of comprehending the world, it now generates a conflicting and contradictory, fleeting and fragmentation field of disconnected and undigested data. INFORMATION IS RADIATION. The most significant planetary pressure is no longer the gravitational pull, but the information thrust. The psycho-social flowering of the human species has withered. We are in the twilight of our cerebral fantasies. The symbol has lost all power. The accumulation of information has lost all purpose. Memory results in mimicry. Reflection will not suffice. THE BODY MUST BURST FROM ITS BIOLOGICAL, CULTURAL, AND PLANETARY CONTAINMENT.

Language and hearing are seated in the cerebral cortex, the folded gray matter that covers the first couple of millimeters of the outer brain like wrapping paper. When one experiences silence, absent even reading, the cerebral cortex typically rests. Meanwhile, deeper and more ancient brain structures seem to be activated—the subcortical zones. People who live busy, noisy lives are rarely granted access to these areas. Silence, it appears, is not the opposite of sound. It is another world altogether, literally offering a deeper level of thought, a journey to the bedrock of the self.

The original condition of human beings, prior to the development of self-reflective consciousness, must have been a state of inner peace disturbed only now and again by tides of hunger, sexuality, pain, and danger. The forms of psychic entropy that currently cause us so much anguish—unfulfilled wants, dashed expectations, loneliness, frustration, anxiety, guilt—are all likely to have been recent invaders of the mind. They are by-products of the tremendous increase in complexity of the cerebral cortex and of the symbolic enrichment of culture. They are the dark side of the emergence of consciousness.

of now, the main difference has been found in the HAR1 (human accelerated region 1), a segment of a recently discovered RNA gene. The RNA that is expressed in early development (HAR1F) is specific to the reelin-producing Cajal-Retzius cells in the brain. HAR1F comes to expression together with reelin in the seventeenth to nineteenth weeks of fetal development, a crucial stage in the formation of the six-layered cerebral cortex. The mutations in this human gene are probably over a million years old and could have played a crucial role in the emergence of modern humankind. Throughout our evolution, an enormous

There is no other species on Earth that does science. It is, so far, entirely a human invention, evolved by natural selection in the cerebral cortex for one simple reason: it works. It is not perfect. It can be misused. It is only a tool. But it is by far the best tool we have, self-correcting, ongoing, applicable to everything. It has two rules. First: there are no sacred truths; all assumptions must be critically examined; arguments from authority are worthless. Second: whatever is inconsistent with the facts must be discarded or revised. We must understand the Cosmos as it is and not confuse how it is with how we wish it to

There is no other species on Earth that does science. It is, so far, entirely a human invention, evolved by natural selection in the cerebral cortex for one simple reason: it works. It is not perfect. It can be misused. It is only a tool. But it is by far the best tool we have, self-correcting, ongoing, applicable to everything. It has two rules. First: there are no sacred truths; all assumptions must be critically examined; arguments from authority are worthless. Second: whatever is inconsistent with the facts must be discarded or revised. We must understand the Cosmos as it is and not confuse how it is with how we wish it to be.

Well, imagine you are alone in a room. The lights are down low, you’ve got some scented candles going. Soothing New Age tunes, nothing too druid-chanty, seep out of the hi-fi to gently massage your cerebral cortex. Feel good? Are you the best, most special person in the room right now? Yes. That’s the gift of being alone. Then a bozo in a CAT Diesel Power cap barges in. What’s the chance that you are the best, most special person in the room now? Fifty-fifty. If you both were dealt two cards, those would be your odds of holding the winning hand. Now imagine ten people are in the room. It’s cramped. You’re elbow to elbow, aerosolized dandruff floats in the air, and the candle’s lavender scent is complicated by BO tones, with a tuna sandwich finish. What are the chances you’re the best, most special person in the room? If you were handed cards, you might expect to be crowned one time out of ten. People, as ever, are the problem. The more people there are, the tougher you have it. Just by sitting next to you, they fuck you up, as if life were nothing more than a bus ride to hell (which it is). But what if you moved to another seat? Changed position? Your seat is everything. It can give you room to relax, to contemplate your next move. Or it might instigate your unraveling.

Panksepp is emphatic on this point, arguing that his neural studies as well as those of his colleagues show that the prime, fundamental emotions of humans and all mammals do not emerge from the cerebral cortex, as was commonly believed in the twentieth century and as some leading neuroscientists still claim, but come from deep, ancient brain structures, including the hypothalamus and amygdala. It is why, he notes, that “drugs used to treat emotional and psychiatric disorders in humans were first developed and found effective in animals—rats and mice. This kind of research would obviously have no value if animals were incapable of experiencing these emotional states, or if we did not share them.

Impulse control is one aspect of self-regulation. Impulses rise up from the lower brain centers and are meant to be permitted or inhibited by the cerebral cortex. A salient trait of the addiction-prone personality is a poor hold over sudden feelings, urges, and desires. Also characterizing the addiction-prone personality is the absence of differentiation.3 Differentiation is defined as “the ability to be in emotional contact with others yet still autonomous in one’s emotional functioning.” It’s the capacity to hold on to ourselves while interacting with others. The poorly differentiated person is easily overwhelmed by his emotions; he “absorbs anxiety from others and generates considerable anxiety within himself.

Even without abstract thought or metaphysical theorizing, just standing on two legs and using clubs gave mankind more than enough skill to win the race for survival on earth. These other abilities aren’t that necessary. And in exchange for our hyper-capable cerebral cortexes, of necessity we have to give up lots of other physical abilities. For example, dogs have a sense of smell several thousand times better than humans, and a sense of hearing tens of times better. But we’re able to amass complex hypotheses. We’re able to compare and contrast the cosmos and the microcosmos, and appreciate Van Gogh and Mozart. We can read Proust—if you want to, that is—and collect Koimari porcelain and Persian rugs. Not something a dog can do.

It’s All about Scaling Most of the current learning algorithms were discovered more than twenty-five years ago, so why did it take so long for them to have an impact on the real world? With the computers and labeled data that were available to researchers in the 1980s, it was only possible to demonstrate proof of principle on toy problems. Despite some promising results, we did not know how well network learning and performance would scale as the number of units and connections increased to match the complexity of real-world problems. Most algorithms in AI scale badly and never went beyond solving toy problems. We now know that neural network learning scales well and that performance continues to increase with the size of the network and the number of layers. Backprop, in particular, scales extremely well. Should we be surprised? The cerebral cortex is a mammalian invention that mushroomed in primates and especially in humans. And as it expanded, more capacity became available and more layers were added in association areas for higher-order representations. There are few complex systems that scale this well. The Internet is one of the few engineered systems whose size has also been scaled up by a million times. The Internet evolved once the protocols were established for communicating packets, much like the genetic code for DNA made it possible for cells to evolve. Training many deep learning networks with the same set of data results in a large number of different networks that have roughly the same average level of performance.

A clearer picture of what is happening in the brain during non-REM sleep,14 during sleepwalking,15 and during confused arousals16 has been achieved through neuroimaging and EEG. It appears that the brain is half awake and half asleep: the cerebellum and brainstem are active, while the cerebrum and cerebral cortex have minimal activity. The pathways involved with control of complex motor behavior and emotion generation are buzzing, while those pathways projecting to the frontal lobe, involved in planning, attention, judgment, emotional face recognition, and emotional regulation are zoned out. Sleepwalkers don’t remember their escapades, nor can they be awakened by noise or shouts, because the parts of the cortex that contribute to sensory processing and the formation of new memories are snoozing, temporarily turned off, disconnected, and not contributing any input to the flow of consciousness.

Then there is degree of contrast: When determining contrast, the pre-attentional parts analyze incoming sensory data against the background inputs. As an example, if you are at a party where many people are talking, not only is the sound gated but the semantic meanings in the hum of conversation are also gated. Essentially, both sound and the meanings-in-the-sounds are reduced in intensity so you don’t get overwhelmed by the incoming sensory inputs. However, should you hear your name from across the crowded room, Did you hear what happened between Michael and Jenny? the gating channel that is contrasting sound meanings in the room will open more widely and allow the sensory input through. It signals the cerebral cortex to pay attention. Once signaled, the cortex, in association with other parts of the brain, uses stochastic processes to enhance the signal so that what is being said can be heard in detail.

A unique part of the plant root, the root apex (or apices, which are the pointed ends of the root system) is a combination sensitive finger, perceiving sensory organ, and brain neuron. Each root hair, rootlet, and root section contains an apex; every root mass millions, even billions, of them. For example, a single rye plant has more than 13 million rootlets with a combined length of 680 miles. Each of the rootlets are covered with root hairs, over 14 billion of them, with a combined length of 6,600 miles. Every rootlet, every root hair, has at its end a root apex. Every root apex acts as a neuronal organ in the root system. In contrast, the human brain has approximately 86 billion neurons, about 16 billion of which are in the cerebral cortex. Plants with larger root systems, and more root hairs, can have considerably more brain neurons than the 14 billion contained in rye plants; they can even rival the human brain in the number of neurons. And when you look at the interconnected network of plant roots and micorrhizal mycelia in any discrete ecosystem, you are looking at a neural network much larger than any individual human has ever possessed.

According to chaos theory, although it is impossible to predict the individual behavior of each element in a complex dynamic system (for instance, the individual neurons or neuronal groups in the primary visual cortex), patterns can be discerned at a higher level by using mathematical models and computer analyses. There are “universal behaviors” which represent the ways such dynamic, nonlinear systems self-organize. These tend to take the form of complex reiterative patterns in space and time—indeed the very sorts of networks, whorls, spirals, and webs that one sees in the geometrical hallucinations of migraine. Such chaotic, self-organizing behaviors have now been recognized in a vast range of natural systems, from the eccentric motions of Pluto to the striking patterns that appear in the course of certain chemical reactions to the multiplication of slime molds or the vagaries of weather. With this, a hitherto insignificant or unregarded phenomenon like the geometrical patterns of migraine aura suddenly assumes a new importance. It shows us, in the form of a hallucinatory display, not only an elemental activity of the cerebral cortex but an entire self-organizing system, a universal behavior, at work.*3

As information processing machines, our ability to process data about the external world begins at the level of sensory perception. Although most of us are rarely aware of it, our sensory receptors are designed to detect information at the energy level. Because everything around us - the air we breathe, even the materials we use to build with, are composed of spinning and vibrating atomic particles, you and I are literally swimming in a turbulent sea of electromagnetic fields. We are part of it. We are enveloped within in, and through our sensory apparatus we experience what is. Each of our sensory systems is made up of a complex cascade of neurons that process the incoming neural code from the level of the receptor to specific areas within the brain. Each group of neurons along the cascade alters or enhances the code, and passes it on to the next set of cells in the system, which further defines and refines the message. By the time the code reaches the outermost portion of our brain, the higher levels of the cerebral cortex, we become conscious of the stimulation. However, if any of the cells along the pathway fail in their ability to function normally, then the final perception is skewed away from normal reality.

An Organizing Principle for Cerebral Function.” In this paper, Mountcastle points out that the neocortex is remarkably uniform in appearance and structure. The regions of cortex that handle auditory input look like the regions that handle touch, which look like the regions that control muscles, which look like Broca’s language area, which look like practically every other region of the cortex. Mountcastle suggests that since these regions all look the same, perhaps they are actually performing the same basic operation! He proposes that the cortex uses the same computational tool to accomplish everything it does.

There is no other species on Earth that does science. It is, so far, entirely a human invention, evolved by natural selection in the cerebral cortex for one simple reason: it works. It is not perfect. It can be misused. It is only a tool. But it is by far the best tool we have, self-correcting, ongoing, applicable to everything. It has two rules. First: there are no sacred truths; all assumptions must be critically examined; arguments from authority are worthless. Second: whatever is inconsistent with the facts must be discarded or revised. We must understand the Cosmos as it is and not confuse how it is with how we wish it to be. The obvious is sometimes false; the unexpected is sometimes true. Humans everywhere share the same goals when the context is large enough. And the study of the Cosmos provides the largest possible context. Present global culture is a kind of arrogant newcomer. It arrives on the planetary stage following four and a half billion years of other acts, and after looking about for a few thousand years declares itself in possession of eternal truths. But in a world that is changing as fast as ours, this is a prescription for disaster. No nation, no religion, no economic system, no body of knowledge, is likely to have all the answers for our survival. There must be many social systems that would work far better than any now in existence. In the scientific tradition, our task is to find them.

victims of brain injuries or disease. In some of these patients, the link between the thinking part of their brains (the cerebral cortex) and the emotional center (located deep in the center of the brain, like the amygdala) was cut. These people were perfectly normal, except they

The disturbance exists not only in the limbs or in the distal portions of the nervous system ; it takes place in those parts of the cerebral cortex which preside over the psychological functions, and a certain disorder of these functions plays an important part in every hysterical accident.

A tinge of panic tingled his cerebral cortex as he recalled the last greeting he had had in this country, which was not so welcoming.

For example, during auditory processing, sound inputs flow through the ear, then the brain stem reticular formation, then the medial septum (these two being called the lemniscal pathway), then the hippocampal region (which also includes the amygdala), then the thalamus, then the auditory cortex, then finally the cerebral cortex. These latter three being called the nonsensical, I mean the nonlemniscal, pathway The central clearing center, as it were, for all sensory inputs is the hippocampus. It is here that all pathways converge. It is this organ that is concerned with orienting us—in both physical space and the rich field of meanings through which we move every day of our lives It is the part of us that works most deeply with meanings, with the meanings that are embedded within every sensory input we receive

Crocodiles have been on the planet for some sixty-five million years, looking just about like this one. They’ve evolved to be the most complex apex predator in their environment. They have a life expectancy similar to ours, and their physiology is surprisingly similar to ours as well: the same basic type of four-chambered heart, and a cerebral cortex. I marveled at the sixty-four long, very sharp, peg-like teeth. Here was an animal able to capture and kill animals much larger than itself. How ironic, I thought, that this-top-of-the-food-chain animal needs our help. As we motored up the river, I restrained the croc on the floor of the boat. I could feel Steve’s reverence for her. He didn’t just like crocodiles. He loved them. We finally came to a good release location. We got the crocodile out onto a sandbar and slipped the ropes and blindfolds and trappings off her. She scuttled back into the water. “She’ll be afraid of boats from now on,” Steve said. “She’ll never get caught again. She’ll have a good, healthy fear of humans, too. It’ll help keep her alive.” Forever afterward, Steve and I referred to the Cattle Creek rescue as our honeymoon trip. It also marked the beginning of Steve’s filming career. He was gifted with the ability to hunt down wildlife. But he hunted animals to save them, not kill them. That’s how the Crocodile Hunter was born.

I love the analogy used in the book The Whole-Brain Child by Daniel Siegel and Tina Payne Bryson—when a child is upset, he “flips his lid.” This means that the upstairs part of the brain—the cerebral cortex, the part of the brain that makes rational decisions and allows for self-control—is not available to the child. Therefore, all the reasoning in the world or explanations will fall on deaf ears. We need to first help them close the lid by giving them support to calm down. We can offer them a cuddle; we don’t assume that they want one. Some children like to be cuddled to help them calm down. Some children will push us away. If they push us away, we make sure they are safe and we can offer them a cuddle when they are calm. We are saying it’s okay for them to melt down. Rather than trying to get the tantrum to stop as soon as possible, allow them to express all their feelings safely until they are calm, and show that we are there to help if they need us. And, once they are calm, we can help them make amends if needed.

The cerebral cortex is the largest part of our brain, where the majority of our complex thinking, short-term memory, and sensory stimulation take place. It is made up of the occipital, parietal, temporal, and frontal lobes. Our frontal lobes are where most of our thinking takes place: where logic and creativity derive.

Everything that the elephants do in this novel may seem amazing but is easily within behavior noted about elephants at zoos or in the wild. That includes painting, vocalizing in human voices, observing death ceremonies, mimicry, even self-medicating. The story of people in Kenya being “taught” by elephants how to induce labor by chewing on leaves is true. Mankind has a long history of observing nature and its survival methods to keep ourselves alive. All of this elephant behavior is attributable to their big brains—all eleven pounds’ worth. And they do have the same number of neurons and synapses in their cerebral cortexes as us humans. Likewise, they put all that brainpower to good use. They use tools and solve problems and even show altruistic behavior. They are also self-aware and have a concept of art. So quit shooting them, please.

In most body organs, defining a unit of operations is quite useful. For example, the kidney’s loop of Henle and the liver acinus are true modules. All modules work in parallel and perform pretty much the same function. In the cerebral cortex, however, modules do not simply operate in parallel but strongly interact. They do not work in isolation but are embedded in a larger structure. Integrative neocortical operations emerge through interactions between the modules rather than within single isolated modules.

Between 15 months and 6 years of age, the cerebral cortex appears to double in size, with synaptic density (a synapse being the point of communication between two adjacent nerve cells) reaching its peak at about 3-3½ years of age, a level 50 per cent higher than it was at birth, or will be at puberty.

[P]rimordial feelings provide a direct experience of one’s own living body, wordless, unadorned, and connected to nothing but sheer existence. These primordial feelings reflect the current state of the body along varied dimensions, . . . along the scale that ranges from pleasure to pain, and they originate at the level of the brain stem rather than the cerebral cortex. All feelings of emotion are complex

When are we motivated to distract ourselves from unpleasant and worrisome thoughts? When we’re not facing a clear and present danger. When the chips are not down. When the babbling of our cerebral cortex, rather than the self-defense of our amygdala, is center stage.

It is an utter insult towards the fascinating neurons of your cerebral cortex, to believe anybody’s words blindly, even if that person is a Scientist or a Philosopher. So, I urge to you, that you must exercise your own reasoning and judgment (that’s what your cerebral cortex is for; to be specific the frontal lobes) at all times.

The cerebral cortex, the outer ‘skin’ of the brain, contains as many as ten billion neurons. This complexity is daunting. Yet it is out of complex interactions between the billions of neurons that consciousness arises.

Moruzzi and Magoun realized that the brain contains a system—which they called the reticular activating system—that extends from the brain stem and midbrain to the thalamus, and from the thalamus to the cortex. This system carries the sensory information from the various sensory systems necessary for the conscious state, and distributes it diffusely to the cerebral cortex (fig. 11.3). But while the reticular activating system is necessary for wakefulness, it is not concerned with the content of conscious processing, that is, with the content of awareness. Figure 11.3.

The brain is highly sensitive to the wide variety of substances that gain entry to the blood, some of which can provoke undesirable effects should they cross into your amygdala, hippocampus, cerebral cortex, or other brain structure. Once having gained entry into the brain, wheat polypeptides bind to the brain’s morphine receptors, the very same receptors to which opiate drugs like fentanyl and oxycodone bind.

Our brains differ as much as our bodies. Indeed, they may differ more. One part of the brain, the anterior commissure … varies seven-fold in area between one person and the next. Another part, the massa intermedia…, is not found at all in one in four people. The primary visual cortex can vary three-fold in area. Something called our amygdala (it is responsible for our fears and loves) can vary two-fold in volume—as can something called our hippocampus (involved in memory). Most surprisingly, our cerebral cortex varies in non-learning impaired people nearly two-fold in volume. Dr. John Robert Skoyles

The brain’s three pounds consist of neurons, glial cells and blood vessels. Each plays a vital role in proper brain functioning, intelligence and other cognitive abilities of the species. There are some 100 billion neurons in the average brain. There are also non-neuronal cells of a roughly equal amount. Nearly 20 per cent of all neurons in the brain reside in the cerebral cortex, including white matter found beneath the cortex or ‘subcortical white matter’.

The Karolinska lab has surmounted all the technical problems and published studies on several tissues. In the brain they isolated nuclei from neurons of the cerebral cortex, the part of the brain responsible for higher functions. The results indicate that there is no renewal of neurons whatsoever. All the cerebral cortex neurons were formed during foetal life and they are not added to after this time, at least not enough to alter the isotope ratio. So, despite the fact that certain other areas of the brain do show some cell renewal, for the all important cerebral cortex we really are living with our lifetime supply of cells from the time of birth. This is one reason why neurodegenerative diseases are so devastating: when central neurons die, nothing can bring them back.

Three months after he received the cells, the boy’s father noticed his son’s eyes tracking a ball that his brother was bouncing. Suddenly the boy could see! There had been nothing wrong with his eyes. Instead, his blindness was caused by damage to his cerebral cortex. After several more treatments, the boy started to hear and talk, and could eventually walk with the aid of a walker. His parents were ecstatic. What I believe happened with our cultured cells is that they moved through the bloodstream to the damaged area, homing in on the site of the injury. Once there, the cells stimulated the formation of new blood vessels and secreted trophic factors, or bioactive molecules that encouraged new cell growth. Because the boy was so young and his system was so responsive, when blood started to flow to these areas, it jumpstarted his neural development and stimulated it to continue on a normal path, repairing some of the functions that had been damaged by his cerebral palsy.

Learning to play a musical instrument even alters the structure of the brain, from subcortical circuits that encode sound patterns to neural fibers that connect the two cerebral hemispheres and patterns of gray matter density in certain regions of the cerebral cortex.

How does electrolocation work, and what can we say about its representational and phenomenological qualities? Constant electric organ discharges emanating from the caudal region maintain a stable spatial voltage pattern over the skin surface. This voltage pattern changes when objects that have a resistance different from the surrounding water come within range of the signal and distort the field, resulting in changes of local electric voltages at particular skin loci. Objects can alter the stable electric discharge field in waveform and/or in amplitude, and weakly electric fish can detect both types of disruptions. These changes in local transepidermal electric current flow are recorded by the skin electroreceptors, which act as a 'retina' upon which an electric image of the object is projected. This image is then transduced, and the information is fed to regions of the brain that process higher-order features of objects. Whereas in humans the processing of higher-order features of objects take place in the cerebral cortex, in electrolocating fish these cognitive tasks are carried out in their hypertrophied cerebellum. The 'mormyrocerebellum' is so oversized that it accounts for the vast majority of the organism's total oxygen consumption, with metabolic expenditures exceeding that of any vertebrate. This, in turn, speaks to the great functional utility of electrolocation: all that brain stuff must be doing something computationally demanding and ecologically important.

But dolphins had just as complex a synaptic network and their brain sizes were even bigger.  Much bigger!  In fact, studies had suggested that brain intelligence was also associated with the amount of “folding” in a brain’s cerebral cortex.  A theory strongly supported by the study of the unusually increased folding of Albert Einstein’s brain.  And it was well-established that the only species on Earth to have a cortex more folded than humans was dolphins.

•  Addiction is a chronic medical illness that attacks the brain, damaging key parts of the cerebral cortex and limbic system. •  With standard traditional treatment, the chance of recovering from addiction and maintaining that recovery is 20–30 percent. •  With the new Recovery Science approach to treatment, the chance of recovering from addiction and maintaining that recovery can approach 90 percent. •  Seventy-five percent of alcoholics are not in treatment, even though alcoholism is nearly as life threatening as heart disease and cancer.

Curiously enough, unlike voluntary movements or behaviors, which are under the control of circuits in the cerebral cortex, automated procedures, once learned, are guided at a subcortical level, without conscious control. In fact, if you stop to think about an automated procedure in a conscious way, you become discombobulated and cannot accomplish the task correctly. For unconscious automatism to function properly, it is better to be distracted, to avoid thinking about the steps or components of the learned task.

From the point of view of brain structure, it is important to note that the tasks of synthesis and evaluation essentially need to get the right hemisphere involved. That is, when higher-order learning is targeted, we have to necessarily stimulate right hemisphere through appropriate instructions and activities that go beyond mere procedural/routine/sequential operations. In addition, essentially the frontal integrative cortex of the cerebral cortex needs to be stimulated to a higher degree for promoting higher-order learning; this is the region we use for more integrative tasks of abstract conceptualisation, as presented earlier.

we need to use appropriate instructions and activities to encourage all our learners to utilise not only both hemispheres of the brain but also different parts of the cerebral cortex, as highlighted above.

The cerebral cortex in the frontal lobe is not able to perform its job of prioritizing, selection and inhibition. The brain, flooded with multiple bits of sensory data, thoughts, feelings and impulses, cannot focus, and the mind or body cannot be still.

Bodies constrain but do not determine religious experience. It matters that humans have two eyes facing forward and a cerebral cortex with billions of neurons for higher-order thinking.

At the time, the prevailing belief in the scientific community was that only humans experienced emotions. It was thought that emotions stem from the highly complex part of the brain that is unique to us, the cerebral cortex. But Panksepp’s discovery that rodents could laugh suggested an alternative: that emotions must come from much more primitive areas of the brain, like the amygdala and hypothalamus. Joy, Panksepp showed, is a deeply primal experience.

consistent meditation practice increases folding in the brain—and its surface area. These changes are situated in the cerebral cortex, the layer of the brain responsible for processing and regulating data from the outside world. Committing to devoting a few minutes each day to meditation will give you a new clarity of perspective on what and who are your real priorities in life, supporting your “higher level” brain regulation and improving your resilience, making you more considered and balanced in your approach. If you want to maximize the power of The Source, mindfulness really is a no-brainer.