Behavioral Genetics Quotes

Humanity is a biological species, living in a biological environment, because like all species, we are exquisitely adapted in everything: from our behavior, to our genetics, to our physiology, to that particular environment in which we live. The earth is our home. Unless we preserve the rest of life, as a sacred duty, we will be endangering ourselves by destroying the home in which we evolved, and on which we completely depend.

Bhramari Om Chanting or Humming Om chanting sends positive messages to the brain and the cells in our body and can actually reprogram our health and behavior.

Modern leftish philosophers tend to dismiss reason, science, objective reality and to insist that everything is culturally relative. More importantly, the leftist hates science and rationality because they classify certain beliefs as true (i.e., successful, superior) and other beliefs as false (i.e., failed, inferior). The leftist’s feelings of inferiority run so deep that he cannot tolerate any classification of some things as successful or superior and other things as failed or inferior. This also underlies the rejection by many leftists of the concept of mental illness and of the utility of IQ tests. Leftists are antagonistic to genetic explanations of human abilities or behavior because such explanations tend to make some persons appear superior or inferior to others. Leftists prefer to give society the credit or blame for an individual’s ability or lack of it. Thus if a person is “inferior” it is not his fault, but society’s, because he has not been brought up properly.

It is precisely our plasticity, our long childhood, that prevents a slavish adherence to genetically programmed behavior in human beings more than in any other species.

Behavioral genetics confirms that aggressive tendencies can be inherited, and that gives natural selection material to work with in shifting the average violent tendencies of a population.

How’s this for fascinating: Heritability of various aspects of cognitive development is very high (e.g., around 70 percent for IQ) in kids from high–socioeconomic status (SES) families but is only around 10 percent in low-SES kids. Thus, higher SES allows the full range of genetic influences on cognition to flourish, whereas lower-SES settings restrict them. In other words, genes are nearly irrelevant to cognitive development if you’re growing up in awful poverty—poverty’s adverse effects trump the genetics.fn24 Similarly, heritability of alcohol use is lower among religious than nonreligious subjects—i.e., your genes don’t matter much if you’re in a religious environment that condemns drinking. Domains like these showcase the potential power of classical behavior genetics.

I became a student of my own depressed experience, trying to unthread its causes. What was the root of all this despair? Was it psychological? (Was it Mom and Dad's fault?( Was it just temporal, a 'bad time' in my life? (When the divorce ends will the depression end with it?) Was it genetic? (Melancholy, called by many names, has run through my family for generations, along with its sad bride, Alcoholism.) Was it cultural? (Is this just the fallout of postfeminist American career girl trying to find balance in an increasingly stressful alienting urban world?) Was it astrological? (Am I so sad because I'm a thin-skinned Cancer whose major signs are all ruled by unstable Gemini?) Was it artistic? (Don't creative people always suffer from depression because we're so supersensitive and special?) Was it evolutionary? (Do I carry in me the residual panic that comes after millennia of my species' attempting to survive a brutal world?) Was it karmic? (Are all these spasms of grief just the consequences of bad behavior in previous lifetimes, the last obstacles before liberation?) Was it hormonal? Dietary? Philosophical? Seasonal? Environmental? Was I tapping into a universal yearning for God? Did I have a chemical imbalance? Or did I just need to get laid?

The Tomorrow Man theory. It’s pretty basic. Today, right here, you are who you are. Tomorrow, you will be who you will be. Each and every night, we lie down to die, and each morning we arise, reborn. Now, those who are in good spirits, with strong mental health, they look out for their Tomorrow Man. They eat right today, they drink right today, they go to sleep early today–all so that Tomorrow Man, when he awakes in his bed reborn as Today Man, thanks Yesterday Man. He looks upon him fondly as a child might a good parent. He knows that someone–himself–was looking out for him. He feels cared for, and respected. Loved, in a word. And now he has a legacy to pass on to his subsequent selves…. But those who are in a bad way, with poor mental health, they constantly leave these messes for Tomorrow Man to clean up. They eat whatever the hell they want, drink like the night will never end, and then fall asleep to forget. They don’t respect Tomorrow Man because they don’t think through the fact that Tomorrow Man will be them. So then they wake up, new Today Man, groaning at the disrespect Yesterday Man showed them. Wondering why does that guy–myself–keep punishing me? But they never learn and instead come to settle for that behavior, eventually learning to ask and expect nothing of themselves. They pass along these same bad habits tomorrow and tomorrow and tomorrow, and it becomes psychologically genetic, like a curse. Looking at you now, Maven, I can see exactly where you fall on this spectrum. You are a man constantly trying to fix today what Yesterday Man did to you. You make up your bed, you clean those dirty dishes from the night before, and pledge not to start drinking until six, thinking that’s the way to keep an even keel. But in reality you’re always playing catch-up. I know this because I’ve been there. The thing is–you can’t fix the mistakes of Yesterday. Yesterday Man is dead, he’s gone forever, and blame and atonement aren’t worth a damn. What you can do is help yourself today. Eat a vegetable. Read a book. Cut that hair of yours. Leave Tomorrow Man something more than a headache and a jam-packed colon. Do for Tomorrow Man what you would have wanted Yesterday Man to do for you.

If falling in love is not love, then what is it other than a temporary and partial collapse of ego boundaries? I do not know. But the sexual specificity of the phenomenon leads me to suspect that it is a genetically determined instinctual component of mating behavior. In other words, the temporary collapse of ego boundaries that constitutes falling in love is a stereotypic response of human beings to a configuration of internal sexual drives and external sexual stimuli, which serves to increase the probability of sexual pairing and bonding so as to enhance the survival of the species. Or to put it in another, rather crass way, falling in love is a trick that our genes pull on our otherwise perceptive mind to hoodwink or trap us into marriage. Frequently the trick goes awry one way or another, as when the sexual drives and stimuli are homosexual or when other forces-parental interference, mental illness, conflicting responsibilities or mature self-disciplinesupervene to prevent the bonding. On the other hand, without this trick, this illusory and inevitably temporary (it would not be practical were it not temporary) regression to infantile merging and omnipotence, many of us who are happily or unhappily married today would have retreated in whole- hearted terror from the realism of the marriage vows.

We are what we adapt to.

Signal transduction science recognizes that the fate and behavior of an organism is directly linked to its perception of the environment.

Antiracist ideas are based in the truth that racial groups are equals in all the ways they are different, assimilationist ideas are rooted in the notion that certain racial groups are culturally or behaviorally inferior, and segregationist ideas spring from a belief in genetic racial distinction and fixed hierarchy.

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.

The realization, early in high school, that a particle behaved differently if observed or left alone.

If the story is unflattering and the feeling is anger, adrenaline kicks in. Under the influence of adrenaline, blood leaves our brains to help support our genetically engineered response of “fight or flight,” and we end up thinking with the brain of a reptile. We say and do dim-witted things.

In particular, while natural selection favors both males and females that leave many offspring, the best strategy for doing so may be different for fathers and mothers. That generates a built-in conflict between the parents, a conclusion that all too many humans don’t need scientists to reveal to them. We make jokes about the battle of the sexes, but the battle is neither a joke nor an aberrant accident of how individual father or mothers behave on particular occasions. It is indeed perfectly true that behavior that is in a male’s genetic interests may not necessarily be in the interests of his female co-parent, and vice versa. That cruel fact is one of the fundamental causes of human misery.

Although neuroplasticity provides an escape from genetic determinism, a loophole for free thought and free will, it also imposes its own form of determinism on our behavior. As particular circuits in our brain strengthen through the repetition of a physical or mental activity, they begin to transform that activity into a habit. The paradox of neuroplasticity, observes Doidge, is that, for all the mental flexibility it grants us, it can end up locking us into “rigid behaviors.”33 The chemically triggered synapses that link our neurons program us, in effect, to want to keep exercising the circuits they’ve formed. Once we’ve wired new circuitry in our brain, Doidge writes, “we long to keep it activated.

One of the deep prejudices that the age of mechanism instilled in our culture, and that infects our religious and materialist fundamentalisms alike, is a version of the so-called genetic fallacy: to wit, the mistake of thinking that to have described a thing’s material history or physical origins is to have explained that thing exhaustively. We tend to presume that if one can discover the temporally prior physical causes of some object—the world, an organism, a behavior, a religion, a mental event, an experience, or anything else—one has thereby eliminated all other possible causal explanations of that object. But this is a principle that is true only if materialism is true, and materialism is true only if this principle is true, and logical circles should not set the rules for our thinking.

Errors of reductionism and biodeterminism take over in such silly statements as “Intelligence is 60 percent genetic and 40 percent environmental.” A 60 percent (or whatever) “heritability” for intelligence means no such thing. We shall not get this issue straight until we realize that the “interactionism” we all accept does not permit such statements as “Trait x is 29 percent environmental and 71 percent genetic.” When causative factors (more than two, by the way) interact so complexly, and throughout growth, to produce an intricate adult being, we cannot, in principle, parse that being’s behavior into quantitative percentages of remote root causes. The adult being is an emergent entity who must be understood at his own level and in his own totality. The truly salient issues are malleability and flexibility, not fallacious parsing by percentages. A trait may be 90 percent heritable, yet entirely malleable.

In fact, like other personality traits, personal happiness appears to be strongly influenced by our genes. Studies of identical and fraternal twins show that identical twins are significantly more likely to exhibit the same level of happiness than are fraternal twins or other siblings. Behavior geneticists have used these studies to estimate just how much genes matter, and their best guess is that long-term happiness depends 50 percent on a person’s genetic set point, 10 percent on their circumstances (e.g., where they live, how rich they are, how healthy they are), and 40 percent on what they choose to think and do.31

The only answer that I can give to this problem is based on Darwin’s principle of natural selection. The idea is that in any population of self-reproducing organisms, there will be variations in the genetic material and upbringing that different individuals have. These differences will mean that some individuals are better able than others to draw the right conclusions about the world around them and to act accordingly. These individuals will be more likely to survive and reproduce and so their pattern of behavior and thought will come to dominate. It

I took on my depression like it was the fight of my life, wich of course, it was. I became a student of my own depressed experience, trying to unthread its causes. What was the root of all this dispair? Was it psychological? (Mom and Dad's fault?) Was it just temporal, a "bad time" in my life? (When the divorce ends, will the depression end with it?) Was it genetic? (Melancholy, called by many names, has run through my family for generations, along with its sad bride, Alcholisme.) Was it cultural? (Is this just the fallout of a postfeminist American career girl trying to find balance in an increasingly stressful and alienating urban world?) Was it astrological? (Am I so sad because I'm a thin-skinned cancer whose major signs are all ruled by unstable Gemini?) Was it artistic? (Don't creative people always suffer from depression because we're so supersensitive and special?) Was it evolutionary? (Do I carry in me the residual panic that come after millennia of my species' attempting to survive a brutal world?) Was it Karmic? (Are all these spasms of grief just the consequences of bad behavior in previous lifetimes, the last obstacles before liberation?) Was it hormonal? Dietary? Philosophical? Seasonal? Environmental? Did I have a chemical imbalance? Or did I just need to get laid?

The effect of hallucinogenic mushrooms on the user's experience and behavior depends in part on his or her personality and genetic predisposition, which can vary to a great extent from person to person. As symptoms of psychiatric disorders can sometimes be elicited after one-off use, people with a genetic tendency to depression or psychosis should be discouraged from using psychoactive mushrooms.

There is a power in accepting people the way they are—our friends, partners, workmates, children, siblings, and especially ourselves. People really are born different from each other and those differences persist. We’re shy, smart, wild, kind, anxious, impulsive, hardworking, absent-minded, quick-tempered. We literally see the world differently, think differently, and feel things differently. Some of us make our way through the world with ease, and some of us struggle to fit in or get along or keep it together. Denying those differences or constantly telling people they should change is not helpful to anyone. We should recognize the diversity of our human natures, accept it, embrace it, even celebrate it.

Let us accept the possibility that there is, at death, not an abrupt cessation of energy, rather a dispersal. This seems more than reasonable to me. Mind you, I've owned a series of old cars, and I"m used to turning off the motor only to experience a series of rumblings and explosions that would shame many a volcano. This is the sort of thing I'm conceptualizing, a kind of clunky running-on. And just as some cars are more susceptible to this behavior, so people vary in the length of time, and the force with which, their energy sputters and gasps. . . My example is overly dramatic, but it is not wholly unreasonable, and it serves to make this genetic mutation a player at the evolutionary table. You see what I'm getting at: a biologically and evolutionally sound model for the soul. (I didn't say I'd achieved it.) Let's conceive of the soul as an aura that human beings wear on their backs, cumberson as a tortoise's carapace. Some are larger than others.

More daunting for those who hope for scientific and social progress, the genetic argument is easily used to justify all kinds of inequalities and injustices that are otherwise hard to defend. It serves a deeply conservative function: if a phenomenon like addiction is determined mostly by biological heredity, we are spared from having to look at how our social environment supports, or does not support, the parents of young children and at how social attitudes, prejudices, and policies burden, stress, and exclude certain segments of the population and thereby increase their propensity for addiction. The writer Louis Menand said it well in a New Yorker article: “It’s all in the genes”: an explanation for the way things are that does not threaten the way things are. Why should someone feel unhappy or engage in antisocial behavior when that person is living in the freest and most prosperous nation on earth? It can’t be the system! There must be a flaw in the wiring somewhere.

People are vaccinated with dangerous chemicals during their childhood, indoctrinated with immorality through television while growing up, taught to reject God by their teachers, fed with genetically modified food, and led to suspect others by their relatives and friends, and then you wonder why it's so difficult to find a normal person in this modern world, why nobody assumes responsibility for their words and behavior, and why everyone is so selfishly abusive. The biblical apocalypse has begun and the zombies are everywhere. It's just that we call them stupid and selfish instead. But they do act like there's no life inside of them anymore. There are no more normal human beings around. The survivors of this apocalypse are extremely scarce and must be treasured.

All dogs are predators, but over thousands of generations, we’ve created sporting breeds to be exceptionally focused predators. All dogs like to dig and chase small prey, but terriers are superdriven to dig and find rodents. All dogs love to run, but greyhounds can run up to forty miles an hour, and huskies can run for hours and hours on end. All dogs have the natural ability to fight or wrestle with one another, but the bully breeds have been genetically engineered to fight to the death. The more pure the bloodline, the more that genetic “boost” will probably play a part in your dog’s behavior. That’s why some owners claim that their “mutts” make mellower pets, because, they theorize, their DNA has been somewhat diluted, and their breed-related drives diffused as a result.

But the history of Hopkins Hospital certainly isn’t pristine when it comes to black patients. In 1969, a Hopkins researcher used blood samples from more than 7,000 neighborhood children—most of them from poor black families—to look for a genetic predisposition to criminal behavior. The researcher didn’t get consent. The American Civil Liberties Union filed suit claiming the study violated the boys’ civil rights and breached confidentiality of doctor-patient relationships by releasing results to state and juvenile courts. The study was halted, then resumed a few months later using consent forms. And in the late nineties, two women sued Hopkins, claiming that its researchers had knowingly exposed their children to lead, and hadn’t promptly informed them when blood tests revealed that their children had elevated lead levels—even when one developed lead poisoning. The research was part of a study examining lead abatement methods, and all families involved were black. The researchers had treated several homes to varying degrees, then encouraged landlords to rent those homes to families with children so they could then monitor the children’s lead levels. Initially, the case was dismissed. On appeal, one judge compared the study to Southam’s HeLa injections, the Tuskegee study, and Nazi research, and the case eventually settled out of court. The Department of Health and Human Services launched an investigation and concluded that the study’s consent forms “failed to provide an adequate description” of the different levels of lead abatement in the homes.

When a male vole repeatedly mates with a female, a hormone called vasopressin is released in his brain. The vasopressin binds to receptors in a part of the brain called the nucleus accumbens, and the binding mediates a pleasurable feeling that becomes associated with that female. This locks in the monogamy, which is known as pair-bonding. If you block this hormone, the pair-bonding goes away. Amazingly, when researchers crank up the levels of vasopressin with genetic techniques, they can shift polygamous species to monogamous behavior.38

Poor health was not just the result of random acts, bad luck, bad behavior or unfortunate genetics. Deliberate public policy decision about housing, education, parks and streets were the key drivers of racial differences in mortality. Crime kept people off the streets and limited their ability to exercise. The lack of grocery stores limited dietary choices. The lack of primary care doctors and specialists in these communities made chronic disease care more difficult. The degradation and loss of hospital services in these communities affected hospital-based outcomes. … The chronic underfunding of critical health services at Cook County Hospital and other safety-net providers contributed to these poor outcomes as well. The deleterious impact of social structures such as urban poverty and racism on health has been called 'structural violence.

The time scale for evolutionary or genetic change is very long. A characteristic period for the emergence of one advanced species from another is perhaps a hundred thousand years; and very often the difference in behavior between closely related species-say, lions and tigers-do not seem very great... But today we do not have ten million years to wait for the next advance. We live in a time when our world is changing at an unprecedented rate. While the changes are largely of our own making, they cannot be ignored. We must adjust and adapt and control, or we perish.

Drug addiction was a disease, and just as I wouldn’t judge a cancer patient for a tumor, so I shouldn’t judge a narcotics addict for her behavior. At thirteen, I found this patently absurd, and Mom and I often argued over whether her newfound wisdom was scientific truth or an excuse for people whose decisions destroyed a family. Oddly enough, it’s probably both: Research does reveal a genetic disposition to substance abuse, but those who believe their addiction is a disease show less of an inclination to resist it. Mom was telling herself the truth, but the truth was not setting her free.

There are not different disciplinary buckets. Instead, each one is the end product of all the biological influences that came before it and will influence all the factors that follow it. Thus, it is impossible to conclude that a behavior is caused by a gene, a hormone, a childhood trauma, because the second you invoke one type of explanation, you are de facto invoking them all. No buckets. A “neurobiological” or “genetic” or “developmental” explanation for a behavior is just shorthand, an expository convenience for temporarily approaching the whole multifactorial arc from a particular perspective.

We live in a world that seems increasingly beyond our control. Our livelihoods are at the whim of globalized forces. The problems that we face—economic, environmental, and so on—cannot be solved by our individual actions. Our politicians are distant and unresponsive to our desires. A natural response when people feel overwhelmed is to retreat into various forms of passivity. If we don’t try too much in life, if we limit our circle of action, we can give ourselves the illusion of control. The less we attempt, the less chances of failure. If we can make it look like we are not really responsible for our fate, for what happens to us in life, then our apparent powerlessness is more palatable. For this reason we become attracted to certain narratives: it is genetics that determines much of what we do; we are just products of our times; the individual is just a myth; human behavior can be reduced to statistical trends.

When you feel the need to escape your problems, to escape from this world, don't make the mistake of resorting to suicide Don't do it! You will hear the empty advice of many scholars in the matter of life and death, who will tell you, "just do it" there is nothing after this, you will only extinguish the light that surrounds you and become part of nothingness itself, so when you hear these words remember this brief review of suicide: When you leave this body after committing one of the worst acts of cowardice that a human being can carry out, you turn off the light, the sound and the sense of reality, you become nothing waiting for the programmers of this game to pick you up from the darkness, subtly erase your memories and enable your return and I emphasize the word subtle because sometimes the intelligence behind this maneuver or automated mechanism is wrong and send human beings wrongly reset to such an extent, that when they fall to earth and are born again, they begin to experience memories of previous lives, in many cases they perceive themselves of the opposite sex, and science attributes this unexplainable phenomenon to genetic and hormonal factors, but you and I know better! And we quickly identified this trigger as a glitch in the Matrix. Then we said! That a higher intelligence or more advanced civilization throws you back into this game for the purpose of experimenting, growing and developing as an advanced consciousness and due to your toxic and destructive behavior you come back again but in another body and another life, but you are still you, then you will carry with you that mark of suicide and cowardice, until you learn not to leave this experience without having learned the lesson of life, without having experienced and surprised by death naturally or by design of destiny. About this first experience you will find very little material associated with this event on the internet, it seems that the public is more reserved, because they perceive themselves and call themselves "awakened" And that is because the system has total control over the algorithm of fame and fortune even over life and death. Now, according to religion and childish fears, which are part of the system's business to keep you asleep, eyes glued to the cellular device all day, it says the following: If you commit this act of sin, you turn off light, sound and sense of reality, and from that moment you begin to experience pain, fear and suffering on alarming scales, and that means they will come for you, a couple of demons and take you to the center of the earth where the weeping and gnashing of teeth is forever, and in that hell tormented by demons you will spend eternity. About this last experience we will find hundreds of millions of people who claim to have escaped from there! And let me tell you that all were captivated by the same deity, one of dubious origin, that feeds on prayers and energetic events, because it is not of our nature, because it knows very well that we are beings of energy, then this deity or empire of darkness receives from the system its food and the system receives from them power, to rule, to administer, to control, to control, to kill, to exclude, to inhibit, to classify, to imprison, to silence, to infect, to contaminate, to depersonalize. So now that you know the two sides of the same coin, which one will your intelligence lean towards! You decide... Heads or tails? From the book Avatars, the system's masterpiece.

Ma was isolated and alone. Under those circumstances people behave differently. Kya made a soft groan. “Please don't talk to me about isolation. No one has to tell me how it changes a person. I have lived it. I am isolation," Kya whispered with a slight edge. "I forgive Ma for leaving. But I don't understand why she didn't come back- why she abandoned me. You probably don't remember, but after she walked away, you told me that a she-fox will sometimes leave her kits if she's starving or under some other extreme stress. The kits die- as they probably would have anyway- but the vixen lives to breed again when conditions are better, when she can raise a new litter to maturity. "I've read a lot about this since. In nature- out yonder where the crawdads sing- these ruthless-seeming behaviors actually increase the mother's number of young over her lifetime, and thus her genes for abandoning offspring in times of stress are passed on to the next generation. And on and on. It happens in humans, too. Some behaviors that seem harsh to us now ensured the survival of early man in whatever swamp he was in at the time. Without them, we wouldn't be here. We still store those instincts in our genes, and they express themselves when certain circumstances prevail. Some parts of us will always be what we were, what we had to be to survive- way back yonder.

You see the impact of humans on Earth’s environment every day. We are trashing the place: There is plastic along our highways, the smell of a landfill, the carbonic acid (formed when carbon dioxide is dissolved in water) bleaching of coral reefs, the desertification of enormous areas of China and Africa (readily seen in satellite images), and a huge patch of plastic garbage in the Pacific Ocean. All of these are direct evidence of our effect on our world. We are killing off species at the rate of about one per day. It is estimated that humans are driving species to extinction at least a thousand times faster than the otherwise natural rate. Many people naïvely (and some, perhaps, deceptively) argue that loss of species is not that important. After all, we can see in the fossil record that about 99 percent of all the different kinds of living things that have ever lived here are gone forever, and we’re doing just fine today. What’s the big deal if we, as part of the ecosystem, kill off a great many more species of living things? We’ll just kill what we don’t need or notice. The problem with that idea is that although we can, in a sense, know what will become or what became of an individual species, we cannot be sure of what will happen to that species’ native ecosystem. We cannot predict the behavior of the whole, complex, connected system. We cannot know what will go wrong or right. However, we can be absolutely certain that by reducing or destroying biodiversity, our world will be less able to adapt. Our farms will be less productive, our water less clean, and our landscape more barren. We will have fewer genetic resources to draw on for medicines, for industrial processes, for future crops. Biodiversity is a result of the process of evolution, and it is also a safety net that helps keep that process going. In order to pass our own genes into the future and enable our offspring to live long and prosper, we must reverse the current trend and preserve as much biodiversity as possible. If we don’t, we will sooner or later join the fossil record of extinction.

There may be a genetic basis to how much dopamine each of our brains produces. The gene that codes for the production of dopamine is called DRD4 (dopamine receptor D4) and is located on the short arm of the eleventh chromosome. When dopamine is released by certain neurons in the brain it is picked up by other neurons that are receptive to its chemical structure, thereby establishing dopamine pathways that stimulate organisms to become more active and reward certain behaviors that then get repeated. If you knock out dopamine from either a rat or a human, for example, they will become catatonic. If you overstimulate the production of dopamine, you get frenetic behavior in rats and schizophrenic behavior in humans.

I am for that thing in your genome that demands it. I am for that thing which keeps you animals alive. I am, at most, a slice of monkey suspended within the stuff of universal intelligence. You are a monkey in nice clothes. In the harsh environment you refer to as a habitable planet, group behaviors are required to survive long enough to procreate. Since you are stupid monkeys, you have no natural affinity for group altruism. And so you have evolved a genetic pump that delivers pleasant chemicals to your monkey brains. One that is triggered by awe and fear of an anthropomorphism of your environment. Earth mothers. Sky gods. Bits of bush that catch fire. Interesting-looking rocks. An oddly-shaped branch. You’re not fussy. When your brain does this idiot work, you stop in front of that bump or stick and consider it fiercely. Other monkeys will, like as not, stop next to you and emulate you. Your genetic pump delivers morphine for your souls. You have your fellow monkeys join in. Perhaps so they can feel it too. Perhaps because you feel it might please the stick god to have more monkeys gaze at it in narcotic awe. The group must be defended. Because as many monkeys as possible must please the stick god, and you can continue to get your fix off praying to it. You draw up rules to organize and protect the group. Two hundred thousand years later, you put Adolf Hitler into power. Because you are, after all, just monkeys. I am your stash.

Most of us think of evolution only in terms of genetics, but that is a mistake. Culture, thought, behavior, and the expression of genes (the genes you have can be turned on or off) also evolve. In addition, we humans can influence our evolution by the environments we construct and the choices we make; our evolution is not just a matter of chance. We have been given the great gift of being able to adapt our thinking and behavior intentionally, and to change our circumstances deliberately, to better suit healthy, purposeful living. The six flexibility skills form such a powerful set because each allows us to meet one of the six essential criteria for evolution to occur. They provide us with the tools to intentionally evolve our lives.

Sure, genetics do play a role in alcholism. You're more likely to be an alcoholic if one or both of your parents are also alcoholics. But that's just one part of the equation; the other part is your behavior. You can't become an alcoholic if you never take a drink. So if you know you're predisposed to addiction because of your family history, then just don't get started, and you'll never find yourself on that path. Same with any other type of 'family curse.' If you parents smoke, don't pick up a cigarette. If your parents are obese, work hard to exercise and eat right so you don't follow in their foosteps. But some people find it easier to play the victim. They do whatever bad habits they want to because they think they have a built-in defense - "I grew up this way.

But now I speculate re the ants' invisible organ of aggregate thought... if, in a city park of broad reaches, winding paths, roadways, and lakes, you can imagine seeing on a warm and sunny Sunday afternoon the random and unpredictable movement of great numbers of human beings in the same way... if you watch one person, one couple, one family, a child, you can assure yourself of the integrity of the individual will and not be able to divine what the next moment will bring. But when the masses are celebrating a beautiful day in the park in a prescribed circulation of activities, the wider lens of thought reveals nothing errant, nothing inconstant or unnatural to the occasion. And if someone acts in a mutant un-park manner, alarms go off, the unpredictable element, a purse snatcher, a gun wielder, is isolated, surrounded, ejected, carried off as waste. So that while we are individually and privately dyssynchronous, moving in different ways, for different purposes, in different directions, we may at the same time comprise, however blindly, the pulsing communicating cells of an urban over-brain. The intent of this organ is to enjoy an afternoon in the park, as each of us street-grimy urbanites loves to do. In the backs of our minds when we gather for such days, do we know this? How much of our desire to use the park depends on the desires of others to do the same? How much of the idea of a park is in the genetic invitation on nice days to reflect our massive neuromorphology? There is no central control mechanism telling us when and how to use the park. That is up to us. But when we do, our behavior there is reflective, we can see more of who we are because of the open space accorded to us, and it is possible that it takes such open space to realize in simple form the ordinary identity we have as one multicellular culture of thought that is always there, even when, in the comparative blindness of our personal selfhood, we are flowing through the streets at night or riding under them, simultaneously, as synaptic impulses in the metropolitan brain. Is this a stretch? But think of the contingent human mind, how fast it snaps onto the given subject, how easily it is introduced to an idea, an image that it had not dreamt of thinking of a millisecond before... Think of how the first line of a story yokes the mind into a place, a time, in the time it takes to read it. How you can turn on the radio and suddenly be in the news, and hear it and know it as your own mind's possession in the moment's firing of a neuron. How when you hear a familiar song your mind adopts its attitudinal response to life before the end of the first bar. How the opening credits of a movie provide the parameters of your emotional life for its ensuing two hours... How all experience is instantaneous and instantaneously felt, in the nature of ordinary mind-filling revelation. The permeable mind, contingently disposed for invasion, can be totally overrun and occupied by all the characteristics of the world, by everything that is the case, and by the thoughts and propositions of all other minds considering everything that is the case... as instantly and involuntarily as the eye fills with the objects that pass into its line of vision.

The more I know the human being, the more I cling to animal nature. Mention poem 2013 Since its beginnings, the human being has been a complex and enigmatic being, capable of great achievements and feats, and at the same time, of the most cruel and vile acts. There is no doubt that our species is one of the most evolved and sophisticated of the planet, but at what cost? What is behind our apparent superiority? When we observe human behavior, we can see that it hides a mixture of animal instincts and rational thoughts. Although human beings take pride in our ability for critical thinking and reflection, We are also emotional, impulsive and visceral beings. And it is precisely this duality that makes us so different from animals. that cohabit this planet with us. It is often difficult for us to understand the nature of animals, because we cannot access their internal world. However, what we can say is that animals are transparent beings, His actions are always a consequence of his instincts, not from premeditated thoughts or complex emotions. For animals, living is following their instinct, something that allows them to act quickly and effectively in situations of danger or threat. Animals are beings in balance with their environment, They don't feel the need to constantly change, nor to think beyond the here and now. On the other hand, we have human beings, beings capable of conceiving abstract thoughts, create works of art, invent technologies and, at the same time, of destroying the environment, oppressing other human beings and commit acts of extreme cruelty. The human being is a complex, contradictory being, capable of loving and hating, forgiving and punishing, healing and destroying. We are creatures of light and darkness, in a constant search for balance between both parties. But what is behind our duality as human beings? Why are we capable of the worst acts of destruction and cruelty? If we look back at the history of humanity, we can see that our genetic patterns are impregnated of violence, war and resentment. History has been a constant parade of wars and conflicts, each one more brutal than the last. This being the only way in which many cultures they have found to impose their ideas or consolidate power. It is precisely here that the idea is born that the creators of humanity They have intoxicated us with the yoke of evil. Who are these forgers? They are the same societies, cultures, religions, policies, which have used violence, war and resentment as a tool to impose their desires and ideals on others. This is the curse that we have dragged like chains since long ago, that of a genetic pattern that drags us towards violence and war. It is true that, as human beings, we can choose our own paths, our own decisions, and not fall into the trap of cruelty and evil. However, it is also true that we carry within us an ancestral burden that is difficult to overcome. What will the most advanced civilizations in the universe think of us? Will we be violent and hateful beings for them? Or will we be beings like animals, in balance with our environment? The answer is not easy, since it remains an unknown. if we are able to overcome our animal instincts and embrace only the best of our humanity. The key to this lies in becoming aware of our own duality, to recognize that we carry both light and darkness within us, and make a real effort to choose the best of ourselves, instead of letting ourselves be carried away by our internal evil.

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.

With more and more decision making and work done by robots, what will be left for humans to do? Do we really want to compete biologically with robot technology by using brain implants and genetically improved intelligence and social behavior? This choice would mean a sharp departure away from the human nature we have inherited, and a fundamental change in the human condition. Now we are talking about a problem best solved within the humanities, and one more reason the humanities are all-important. While I’m at it, I hereby cast a vote for existential conservatism, the preservation of biological human nature as a sacred trust. We are doing very well in science and technology. Let’s agree to keep it up, and move both along even faster. But let’s also promote the humanities, that which makes us human, and not use science to mess around with the wellspring of this, the absolute and unique potential of the human future.

The creation of new symbioses by mergers on a crowded planet is called symbiogenesis. And we might call all aspects of its study “symbiogenetics”—the science of normative symbioses, the word commanding respect because of its apparent coinage from genetics; in fact, I derived it directly from symbiogenesis, though the connotation is a good one. Although this type of evolution sounds bizarre—a monstrous breach of Platonic etiquette in favor of polymorphous perversity—it is now confirmed by genetic evidence, taught in textbooks. It is a fact, or what the French philosopher of science Bruno Latour and the Belgian physicist-turned-philosopher Isabelle Stengers, not putting too fine a point on it, would call a factish. Nonetheless, although symbiogenesis—the evolution of new species by symbiosis—is now recognized, it is still treated as marginal, applicable to our remote ancestors but not relevant to present-day core evolutionary processes. This is debatable. We are crisscrossed and cohabited by stranger beings, intimate visitors who affect our behavior, appreciate our warmth, and are in no rush to leave. Like all visible life-forms, we are composites.

The propositions that accompany most of the chapters . . . are not as snappy as I would prefer—but there’s a reason for their caution and caveats. On certain important points, the clamor of genuine scientific dispute has abated and we don’t have to argue about them anymore. But to meet that claim requires me to state the propositions precisely. I am prepared to defend all of them as “things we don’t have to argue about anymore”—but exactly as I worded them, not as others may paraphrase them. Here they are: 1. Sex differences in personality are consistent worldwide and tend to widen in more gender-egalitarian cultures. 2. On average, females worldwide have advantages in verbal ability and social cognition while males have advantages in visuospatial abilities and the extremes of mathematical ability. 3. On average, women worldwide are more attracted to vocations centered on people and men to vocations centered on things. 4. Many sex differences in the brain are coordinate with sex differences in personality, abilities, and social behavior. 5. Human populations are genetically distinctive in ways that correspond to self-identified race and ethnicity. 6. Evolutionary selection pressure since humans left Africa has been extensive and mostly local. 7. Continental population differences in variants associated with personality, abilities, and social behavior are common. 8. The shared environment usually plays a minor role in explaining personality, abilities, and social behavior. 9. Class structure is importantly based on differences in abilities that have a substantial genetic component. 10. Outside interventions are inherently constrained in the effects they can have on personality, abilities, and social behavior.

From another corner of neuroscience, we’re learning about a neurotransmitter called dopamine. Though there are more than fifty neurotransmitters (that we know of), scientists studying substance problems have given dopamine much of their attention. The brain’s reward system and pleasure centers—the areas most impacted by substance use and compulsive behaviors—have a high concentration of dopamine. Some brains have more of it than others, and some people have a capacity to enjoy a range of experiences more than others, owing to a combination of genetics and environment. The thing about dopamine is that it makes us feel really good. We tend to want more of it. It is naturally generated through ordinary, pleasurable activities like eating and sex, and it is the brain’s way of rewarding us—or nature’s way of rewarding the brain—for activities necessary to our survival, individually or as a species. It is the “mechanism by which ‘instinct’ is manifest.” Our brains arrange for dopamine levels to rise in anticipation and spike during a pleasurable activity to make sure we do it again. It helps focus our attention on all the cues that contributed to our exposure to whatever felt good (these eventually become triggers to use, as we explain later). Drugs and alcohol (and certain behaviors) turn on a gushing fire hose of dopamine in the brain, and we feel good, even euphoric. Dopamine produced by these artificial means, however, throws our pleasure and reward systems out of whack immediately. Flooding the brain repeatedly with dopamine has long-term effects and creates what’s known as tolerance—when we lose our ability to produce or absorb our own dopamine and need more and more of it artificially just to feel okay. Specifically, the brain compensates for the flood of dopamine by decreasing its own production of it or by desensitizing itself to the neurotransmitter by reducing the number of dopamine receptors, or both. The brain is just trying to keep a balance. The problem with the brain’s reduction in natural dopamine production is that when you take the substance or behavior out of the picture, there’s not enough dopamine in the brain to make you feel good. Without enough dopamine, there is no interest or pleasure. Then not only does the brain lose the pleasure associated with using, it might not be able to enjoy a sunset or a back rub, either. A lowered level of dopamine, combined with people’s longing for the rush of dopamine they got from using substances, contributes to “craving” states. Cravings are a physiological process associated with the brain’s struggle to regain its normal dopamine balance, and they can influence a decision to keep using a substance even when a person is experiencing negative consequences that matter to him and a strong desire to change. Depending on the length of time and quantities a person has been using, these craving states can be quite uncomfortable and compelling. The dopamine system can and does recover, starting as soon as we stop flooding it. But it takes time, and in the time between shutting off the artificial supply of dopamine and the brain’s rebuilding its natural resources, people tend to feel worse (before they feel better). On a deep, instinctual level, their brains are telling them that by stopping using, something is missing; something is wrong. This is a huge factor in relapse, despite good intentions and effort to change. Knowing this can help you and your loved one make it across this gap in brain reward systems.

The human brain is the most complex entity in the universe. It has between fifty and one hundred billion nerve cells, or neurons, each branched to form thousands of possible connections with other nerve cells. It has been estimated that laid end to end, the nerve cables of a single human brain would extend into a line several hundred thousand miles long. The total number of connections, or synapses, is in the trillions. The parallel and simultaneous activity of innumerable brain circuits, and networks of circuits, produces millions of firing patterns each and every second of our lives. The brain has well been described as “a supersystcm of systems.” Even though fully half of the roughly hundred thousand genes in the human organism are dedicated to the central nervous system, the genetic code simply cannot carry enough information to predetermine the infinite number of potential brain circuits. For this reason alone, biological heredity could not by itself account for the densely intertwined psychology and neurophysiology of attention deficit disorder. Experience in the world determines the fine wiring of the brain. As the neurologist and neuroscientist Antonio Damasio puts it, “Much of each brain’s circuitry, at any given moment in adult life, is individual and unique, truly reflective of that particular organism’s history and circumstances.” This is no less true of children and infants. Not even in the brains of genetically identical twins will the same patterns be found in the shape of nerve cells or the numbers and configuration of their synapses with other neurons. The microcircuitry of the brain is formatted by influences during the first few years of life, a period when the human brain undergoes astonishingly rapid growth. Five-sixths of the branching of nerve cells in the brain occurs after birth. At times in the first year of life, new synapses are being established at a rate of three billion a second. In large part, each infant’s individual experiences in the early years determine which brain structures will develop and how well, and which nerve centers will be connected with which other nerve centers, and establish the networks controlling behavior. The intricately programmed interactions between heredity and environment that make for the development of the human brain are determined by a “fantastic, almost surrealistically complex choreography,” in the apt phrase of Dr. J. S. Grotstein of the department of psychiatry at UCLA. Attention deficit disorder results from the miswiring of brain circuits, in susceptible infants, during this crucial period of growth.