“Comparing the rates of violence in chimpanzees and humans gives support to the idea that male-male physical competition over females within the social group is vastly less important in humans.  Wrangham and his associates compared the rates of lethal violence between chimpanzees and human subsistence societies and found them similar….In sharp contrast, chimpanzees had rates of within-group nonlethal physical aggression between two or three orders of magnitude higher than humans.  Although preliminary data, these results indicate a major reduction in male-male violence within human groups and supports Boehm’s hypothesis on the evolution of human egalitarianism…”  (Lancaster and Kaplan, “The Endocrinology of the Human Adaptive Complex,” in Endocrinology of Social Relationships, eds. Ellison and Gray, p. 113.)

I received an email from Elaine Morgan, popularizer of the aquatic ape theory of human evolution and the author of several books on human evolution, including The Descent of Woman.  Morgan recommended that I read the work of Sarah Blaffer Hrdy.  She suggested I read Mother and Others: The Evolutionary Origins of Mutual Understanding.

“The paradigm shift away from thinking of our Pleistocene ancestors as reared by all-nurturing chimpanzee-like mothers, and toward thinking of them as apes with species-typical shared care, has been slow in coming.  Only in the past decade has cooperative breeding’s implications for attachment theory begun to be addressed, and its evolutionary implications taken into account.”  (Hrdy, Mothers and Others, p. 113.)

Hrdy discusses the influence of the alloparent in detail, describing the profound uniqueness of the human species, where mothers share infant intimacy with other females (and occasionally males) from the first day on.  This is unheard of in other great ape species.  Many things are implied.  Hrdy concentrates on how natural selection reinforces a cooperation theory-of-mind paradigm that allows a larger number of progeny to survive in communities where child-rearing is a community event.  For Hrdy, coming from a natural selection theorizing background, natural selection alone explains how humans evolved an ability to identify with another person as compassion became a highly useful feature.

Two things jump out at me.  First, sexual selection seems to be of relatively little importance in Hrdy’s hypothesis.  Neoteny is not mentioned.  With a default assumption that natural selection is how things transform, there is no awareness that many of the features that Hrdy describes reveal neotenous trends.  Though she discusses the influence of matriarchy, this is not integrated into an understanding of how matriarchy encourages specific kinds of evolution, particularly those kinds of evolution leading to the features that Hrdy is paying the closest attention to.  Matrifocal social structure encourages cooperative societies.  Instead of exploring the conditions that support matrifocal social structure, Hrdy commits the usual sociobiological sin of assuming that only natural selection is in play.  (Geoffrey Miller’s work would be the exception.)

Placing a heavy emphasis on alloparent intervention keeping our species alive, Hrdy neglects to make the connection between neoteny and social structures that support alloparents.  In other words, Hrdy’s work supports matrifocal human evolution.

No doubt this is just the beginning of my exploration of Hrdy’s work in connection with my Orchestral Theory of Evolution.  Thank you, Elaine, for sending me in Hrdy’s direction.

Second, considering that autism features individuals exhibiting the characteristics of our evolutionary forebears, and noting that the environment and child-rearing practices of those forebears might be what current autistics are craving, I’ve hypothesized that diet, rhythm, dance, touch and performance may all be necessary to those with autism.  Reading Hrdy’s book, it strikes me that perhaps an autistic neurology requires constant multiple parents, several persons to form attachments with.  For a child to feel part of society, perhaps it is neurologically necessary that several central females be engaged from birth.  Hrdy notes that in primitive societies, though the babies may travel among several persons over the course of a day, the baby sleeps with the mother at night.  It is also possible that an autistic individual requires close contact with a central figure through the night.

As it becomes clearer how exactly we evolved, we may evolve a deeper understanding for how we can adjust the environment of particular humans having difficulty adjusting to current society.

That I might have featured Asperger’s when I was young never crossed my mind until this year.  I’d been studying autism for 12 years.  Working for 12 years with the thesis that testosterone informed the rate of maturation, it never struck me that estrogen might manage the timing until last winter when I discovered I’d been causally considering it for a couple of weeks.  My creative process is an artistic process that often features a conscious mind just along for the ride.  There are similarities between those of us living lives deeply informed by the creative process and those that this society calls autistic.

Understanding autism is at the heart of this orchestral theory of evolution.  If this theory does explain how autism emerges and offers interventions that can improve the lives of those that feel inhibited by the condition, then there is the chance that several dozen conditions and diseases may be addressed by using the principles outlined in this work.  My premise is that autism is a condition that features male maturational delay and, in females, acceleration.  Social structure, neurological anomalies and endocrinological differences are all integral to autism and Asperger’s etiology.   By adjusting our theory of evolution…

Light moves at a speed of 186,000 miles per second.  Speed as a concept is also integral to biology.  I hypothesize that the speed with which information passes between the two cerebral hemispheres impacts consciousness, behavior and personality.  And, whereas the basic unit of speed in physics is the kilometer or mile, in biology that unit is a generation.  Though maybe not.

Bernard Crespi has written a paper, Psychosis and Autism as Diametrical Disorders of the Social Brain, which focuses on several neurological features as influential in the etiology of particular diseases and conditions.  Corpus callosum size (the corpus callosum is the primary brain bridge between the two cerebral hemispheres) and anomalous dominance (differing cerebral hemisphere sizes) are two of those features, aspects of cerebral lateralization.  I would consider that corpus callosum size not only influences the ease and speed of information transfer, but that corpus callosum size influences the experience of self awareness or split consciousness.

There are correlations between degrees of cerebral lateralization, how much the two cerebral hemispheres vary, and conditions characterized by maturational delay (autism, Asperger’s, stuttering).  Degrees of handedness are influenced by this variable.  Other diseases and conditions are associated with right cerebral hemispheres not…

I’m still trying to grasp the concept that testosterone and estrogen and their associated hormones are together managing ontological, social and biological evolution by adjusting to changes in the environment by moderating the rate and timing of ontogeny.

We always knew that sex governed our lives.  There is now the possibility that we can understand how exactly this is done.

In both sexes, entering puberty is characterized by a surge in testosterone that, among other things, halts most synaptic growth.  If fat levels are not high enough, puberty is delayed.  Certain levels of estrogen are required for testosterone surges to occur.

Over ten years ago I hypothesized that a mother’s uterine testosterone levels would influence the likelihood of her child exhibiting autism.  I estimated that the rate of maturation would be determined by the amount of testosterone.  A mother with high testosterone would feature maturationally delayed sons and maturationally accelerated daughters, both vulnerable to autism.

This last season I’ve been applying the pattern of how estrogen controls the timing of testosterone surges at puberty to early childhood when testosterone surges prune the right hemispheres of most normal right-handed individuals.  Might estrogen levels in these infants, toddlers and children be determining…

It seems too elegant to be true, but I’ve become enamored of the possibility.

Heterochronic theory, the study of the effects of rate and timing on maturation and development, takes the work of several late nineteenth century and early twentieth century theorists and packages that work into a sort of seamless whole. Stephen J. Gould in his Ontogeny and Phylogeny went far, codifying the various theorists’ predilections so that they made an overriding sense. I say “sort of” seamless whole because the actual endocrinological underpinnings of the dynamics were never explored.

Neoteny is the best known of the six heterochronic processes. Neoteny is the process whereby features of infants, embryos or the very young are, over the course of generations, prolonged to emerge in the adults of descendants. Acceleration is the opposite, whereby features of adult ancestors appear in the infants of descendants. For example, let’s say great great grandfather had a baritone voice, emerging at puberty. His son’s deeper voice may emerge just before puberty and his great grandson might have an unusually hoarse voice as a child. That would be an acceleration of a feature. These things normally take hundreds and thousands of generations, though they can be…

“We have now surveyed a wide range of creole structures across a number of unrelated creole languages.  We have seen that even taking into account the, in some cases, several centuries of time that have elapsed since creolization, and the heavy pressures undergone by those creoles (a large majority) that are still in contact with their superstrates, these languages show similarities which go far beyond the possibility of coincidental resemblance, and which are not explicable in terms of conventional transmission processes such as diffusion or substratum influence (the ad hoc nature of the latter should be adequately demonstrated by the opportunism of those who attribute a structure to Yoruba when it appears in the Caribbean and to Chinese when it appears in Hawaii).  Moreover, we find that the more we strip creoles of their more recent developments, the more we factor out superficial and accidental features, the greater are the similarities that reveal themselves.  Indeed, it would seem reasonable to suppose that the only differences among creoles at creolization were those due to differences in the nature of the antecedent pidgin, in particular to the extent to which superstrate features had been absorbed by that pidgin and were therefore directly…

On page 575 of the May 1 issue of Science there is an article, “Africans’ Deep Genetic roots Reveal Their Evolutionary Story.” Examining the blood of 3,194 Africans from 113 populations, researchers looked for patterns in inheritance. “In many cases, the team found that ethnic, cultural, and linguistic differences reflected real genetic differences…” For example, the three hunter gatherer click language cultures (Sandawe, Hadza and Khoisan) were all genetically connected.

They ran comparisons to 98 African Americans. “…71% of their DNA from ancestors who came from all over western Africa, 8% from other parts of Africa, and 13% from Europeans.”

A premise of my work is that there are several causes of autism that are related to changes in a mother’s sexual hormone levels as this relates to changes in testosterone and estrogen levels over the course of our recent (3,000 generations) evolution. We’ve transformed from a matrifocal, aboriginal, high-testosterone/high-estrogen female, low-testosterone/low-estrogen male to the reverse, a high-testosterone/high-estrogen male, low-testosterone/low-estrogen female. Various environmental and social effects propel our children backward hundreds, sometimes thousands, of generations. When sent too far back, their world becomes again one characterized by primary process (one time, one place, no negatives) that in modern times manifests…

I have barked up a lot of trees as I have been trotting blindfolded through the forest of possibilities that have had me so captivated the last twelve years.  I seem to have a natural inclination to shut myself off to conventional interpretations.  Instead of using my eyes, I’m feeling, smelling and listening to what’s around me until I get a taste of what it is I seek.

Finding powerful ways of explaining what I’ve found becomes as important as what I’ve discovered in these forests.  Sometimes the metaphor itself feels as significant as the process the metaphor seeks to represent.

Alford Korzybski famously noted, “A map is not the territory it represents, but if correct, it has a similar structure to the territory, which accounts for its usefulness.”  From my Zen evolutionary perspective, the territory is constantly in flux, representing an infinite number of constantly shifting relationships.  My art seeks to be part of a process that creates theories that can usefully represent these constantly changing relationships, and then I want to devise metaphors to make the theories feel accessible.

The proofs part is a challenge.

So, while I develop a repertoire of metaphors, proofs elude me.

I use…

I have been told by others, particularly by author David Brin with some annoyance, that my bias toward the matrifocal frame weighs down what I am trying to communicate.  At those moments you feel most perturbed by how I’ve said something, do tell me so my turns of phrase don’t turn stomachs.  I’d rather communicate than indoctrinate.

I write about 90 days before posts appear.  In a couple weeks [a couple months ago], posts start to emerge that begin with the observation of a possible erroneous connection, that both Hopi and Trobriand Islanders have languages with not much more than the present tense and both are matrifocal.  Two cases a pattern does not make.  That the Hopi are mostly present tense is contested.  The Sapir-Whorf hypothesis (that language informs culture with language structure guiding culture values) is considered disproved by many, but I’m thinking there might be a connection between language, ancient matrifocal society, primary process and autism.

A premise in that long piece, “Introduction to the Theory of Waves,” is that matrifocal societies will evidence diseases and conditions associated with autism in modern society.  I’m starting to think that premise may be wrong.  The particular way…

OK.  Several possible estrogen-related connections have emerged in the last few days.

First, if estrogen is a trigger in teenaged girls for entering puberty, thus beginning the testosterone surges that freeze brain growth, and it is also true for males (a stretch) that estrogen levels trigger pubertal timing, might this also apply to male and female infant/toddler testosterone-surge synapse pruning that results in asymmetric cerebral lateralization?  If so, might infant/toddler estrogen levels be instrumental in causing autism, low estrogen resulting in delayed growth?

Second, noting the seeming connection between estrogen’s focus on the young and the exhibition of maternal behavior along with estrogen’s focus on very specific features in a mate (thus driving the emergence of unique male species traits), is it true that species that engage in female sexual selection are also species where the mother exhibits maternal behavior?  An implication is that K vs. r strategies might compel female choice and changes in the exhibition of male behaviors.

Third, might it be the case that estrogen, predating testosterone, is somehow responsible for early proliferation of life on earth insofar as estrogen is associated with creation, discrimination and focus on the young?

In the old religions, there is a…

Consider that those female children with low estrogen levels as they cross over into their teens may find themselves experiencing delayed puberty.  This may manifest delayed testosterone surges pruning cerebral synapses, resulting in more cerebral synapses and larger brains.  What exactly might be the relationship between low estrogen, low enough to delay puberty (particularly with girls), and increased encephalization?

With girls, estrogen levels that are too low will delay the first estrous cycle or stop it if already underway.  Introducing a high-fat diet to a girl nearing puberty can add on fat that sparks the transition to adulthood.

With girls, high fat encourages puberty.  It would seem that Western high-fat diets might be responsible for the drop in puberty by four years over the last 100 years.

A question arises.  Is the same dynamic engaged for boys?  Do thin boys introduced to high-fat diets also experience a push into puberty?

This dynamic suggests a number of questions.

To what degree have high and low-fat diets influenced human evolution?  If low fat delays puberty and results in more brain growth, might this be because more synapses are useful for finding more fat?

When there is more fat in diets and puberty…

Rosanna and I are conducting an overview of matrifocal societies around the world, seeking correlations with the primary elements of the thesis.  I’m estimating that a matrifocal society will have females with higher testosterone and higher estrogen than a modern conventional society, males with lower testosterone and lower estrogen, more frequent anomalous cerebral dominance with both cerebral hemispheres more often the same size, a leftward shift of Annett’s handedness distributions (more left-handers), delayed puberty and tendencies to exhibit specific diseases and conditions characterized by the hormonal tendencies just mentioned.

There is the possibility that matrifocal societies will have language structures characterized by an emphasis on the present tense as in the Hopi and Trobriand Islanders.  This would suggest an affinity to primary process in waking consciousness:  one time, one place, no negatives.  An implication might be a different kind of sense of humor and a possible different kind of creative imagination.

Elia and I were talking last night about the relevance of myth.  Elia suggested that the structure of the mythology of matrifocal societies may reflect the unique neurological constellation we are proposing.  We considered that the myths might show a single story line, main character almost always present (no…

I’m shocked at the conclusion come to at the end of yesterday’s piece.  It is often the case that I begin an essay with only a vague idea of where we’re headed.  Sometimes the conclusion reveals possibilities that were nowhere on my radar when I began.

It seems from the work of Benjamin Whorf and other scientists and theorists that the Hopi manifest features suggesting ties to the left end of our left/right, matrifocal/patrifocal, anomalous dominant/conventional cerebral organization arc of features.  Exploring these kinds of societies, I’ve expected to see increased percentages of left-handedness along with a higher numbers of patients with diseases featuring specific hormonal constellations (see Introduction to the “Theory of Waves”).  What struck me yesterday is the possibility that those cultures have developed child rearing practices that decrease the likelihood of further drift in a matrifocal, male maturational-delayed, female maturational-accelerated direction.  Increased left-handedness and diseases and conditions we are hypothesizing are associated with matrifocal society, but they may only emerge when traditional child rearing practices are abandoned or there is an embracing of Western testosterone-influencing and estrogen-influencing societal practices such as high fat diets, alcohol consumption, drug use, lack of exercise, etc.

Two things are implied.  First,…

“Nonright-handedness (NRH) has been attributed to hypoxia-induced brain changes in the fetus and associated pregnancy and birth complications (PBCs). Maternal smoking during pregnancy is known to produce prenatal hypoxia for the fetus, which may result in low birth weight and other PBCs. It was hypothesized that maternal smoking during pregnancy results in a leftward shift of handedness in the offspring. This study compared the distribution of handedness in the offspring of mothers who did and did not smoke cigarettes during pregnancy. Information on maternal smoking, handedness, and PBCs was analyzed for 803 university students. There was a significant shift to the left in the distribution of handedness scores for the offspring of smoking mothers (N = 216), as compared to those of nonsmoking mothers (N = 587). Offspring of smoking mothers also reported significantly more PBCs. Results are consistent with the hypothesis that NRH is associated with pathological neurodevelopment.” (Bakan P. (1991) Handedness and maternal smoking during pregnancy. Int J Neurosci 56 (1-4): 161)

There’s about a three-month lag from the time these pieces are written until they post. It is January 16, 2009, today and Simon Baron-Cohen is releasing another study emphasizing that high mother uterine testosterone levels influence…

I just noted the NY Times article on Somali Autism. My 1998 conjectures that this could occur are discussed in several pieces here. The piece, Somali Children in Minnesota, Autism and the Effects of Light on Uterine Testosterone supplies the best summary.

Information coming out today that I haven’t seen before include articles mentioning higher rates of autism in other countries among immigrants. The Huffington Post noted, “Higher than normal autism rates among children of immigrants have also been reported in Ireland, the UK and several cities in North America, especially Montreal.”

One article notes a Swedish study concluding autism is higher among Somali immigrants in Sweden.

I see no articles that mention my posted pieces on the subject, or the work of Norman Geschwind that inspired my hypothesis.

Ten years ago, I was exploring the possible origin of human culture in tribal societies driven by rhythmic dance and music. Tribal societies are on rare occasions characterized by paternal anonymity, or children who are unaware of the identity of their biological father. Observing that human brain size began to diminish about 25,000 years ago, I hypothesized that this reflected an emerging patrifocal emphasis on speech instead of gesture and a movement away from a selection for big-brained males. If this was the case, I suspected that there might be remnants of the old matrifocal paradigm that still exist within contemporary society. In the neurological literature, I sought humans with unusually large brains, difficulty with language, but who were also ambidextrous or left-handed. I came to find that autistic individuals commonly display these features; in addition, I discovered that individuals with autism are often obsessed with pattern replication and have perfect pitch (Brenton, Devries, Barton, Minnich & Sokol, 2008).

It appeared that hidden beneath the just-so story was a theory, which, if brought to light, could help make useful predictions and illuminate unrecognized relationships. From the beginning, the theory drew information from three different disciplines: anthropology, evolutionary biology…

I’ve talked about the effect of sunlight on the pineal gland changing testosterone levels of immigrants from equatorial regions. Equatorial people with established, normal, daily 30% fluctuations in testosterone move to northern climates and experience fluctuations that last for months, thus compelling radical changes in a mother’s uterine testosterone levels. Unusually high or low mother’s uterine testosterone levels can cause unusually high or low testosterone levels in her children, translating into exaggerated maturational delay and acceleration (depending on the season of conception) that can contribute to autism.

In previous pieces, I’ve noted these effects on Jewish and American Black populations, with a skewing of populations toward the extremes of maturational delay and acceleration evidenced by a number of diseases and disorders characterized by these hormonal extremes. I would predict that both these populations would evidence higher percentages of autism and left-handedness, perhaps higher in places like Milwaukee and Minnesota than Houston and Miami. In just the way the Somalis in Minneapolis and St. Paul are exhibiting higher rates of autism, I would suggest that this Somali population would exhibit higher rates of left-handedness.

Another population influenced by these processes are the Latino immigrants from South and Central America. Studies could…

Two biological processes impact the American Black population, resulting in increased learning disabilities, specific medical maladies and challenges not familiar to most other ethnicities and most whites of European origins. In addition to the challenges of these biological circumstances, as a result of these processes, the American Black population is also blessed with gifts that provide recognition and respect, and now the presidency.

There are three primary genetic pools in Africa. One genetic source is believed to have resulted in literally all other humans that have distributed themselves about the world since the diaspora of 50,000–80,000 years ago. The other two are far smaller, located in central and east/central Africa. All three are relatively ancient compared to the many other ethnicities across the planet.

Darwin observed, while breeding pigeons, that when two widely divergent threads or strains mate or blend, having had no genetic contact for a prolonged period of time, the progeny often reveals traits of the last common ancestor. For example, Chinese pigeons were bred in isolation from European pigeons for more than 2,000 years. When cross-bred, they revealed features of the Roc pigeon, ancestor to both derivations.

Breeders would sometimes observe a surge of archaic features that…

I’m starting to muddle through the implications of the four-pole hypothesis of four prototype pairings, with eight prototype human beings, four in each sex. (Proceed to the essays “Estrogen Ascendant” and “Estrogen Play” for more background on the concepts addressed in this essay.)

F te/M TE Conventional Patrifocal
F tE/M Te Warrior Patrifocal
F Te/M tE Contemporary Matrifocal
F TE/M te Classic Matrifocal

F te/M TE means low-testosterone & estrogen female, high-testosterone & estrogen male. Domineering, caring, discriminating men choosing cooperative women.

F tE/M Te means low-testosterone, high-estrogen female, high-testosterone, low-estrogen male. Domineering men choosing cooperative, caring, discriminating women.

F Te/M tE means high-testosterone, low-estrogen female, low-testosterone, high-estrogen male. Commanding women choosing creative, cooperative, caring, discriminating men.

F TE/M te means high-testosterone & estrogen female, low-testosterone & estrogen male. Commanding, caring, discriminating women choosing creative, cooperative, aloof men.

We have noted that Marian Annett observed a balanced polymorphism of gradations between random-handed and strong right-handed individuals within a society. We might conclude that just as there is a hypothesized random-handed prototype human and a strong right-handed prototype human, with some people fitting those exact prototypes, most folks in our four-pole hypothesis…

Geschwind and Galaburda in their 1987 Cerebral Lateralization noted a number of patterns across studies that seemed to support a relationship between lateralization, handedness and a number of diseases and conditions. Follow-up studies often led to results that were ambiguous. Still, the work of Simon Baron-Cohen and his colleagues have come to conclusions that have suggested connections that Geschwind and Galaburda alluded to. Specifically, mother’s testosterone levels inform conditions characterized by male maturational delay. Marian Annett continues to pioneer an understanding of a paradigm characterized by random-handedness balanced by conventional handedness that she calls Right Shift Theory.

In other essays on this website (i.e., Evolutionary Theory, Neuropsychology and Autism), I have described the integral connection between heterochronic theory and the neuropsychological patterns observed by Geschwind and Galaburda, developed by Annett and Baron-Cohen. Heterochronic theory describes how species evolve when influenced by changes in the rate of timing of maturation and development. Neoteny is one of six heterochronic patterns, the prolongation or lifting of infant or embryonic features from ancient ancestors into the features of adult descendants, resulting in the slowing down of maturation, with features of early ontogeny appearing later in ontogeny over generations. One does not…

Ten days ago we waded into what little information we have on estrogen to estimate if we know enough to inform an understanding on the influence of estrogen on human evolution and current societal formations. Eight days ago we came up with the following matrix of relationships…

Patri Female low T, low e Male high T, high e Asian
Patri Female low T, low e Male high T, low e
Hybrid Female low T, low e Male low T, high e Scandinavian?
Hybrid Female low T, low e Male low T, low e Scandinavian?

Patri Female low T, high e Male high T, high e
Patri Female low T, high e Male high T, low e
Hybrid Female low T, high e Male low T, high e Scandinavian?
Hybrid Female low T, high e Male low T, low e Scandinavian?

Hybrid Female high T, low e Male high T, high e
Hybrid Female high T, low e Male high T, low e
Matri Female high T, low e Male low T, high e
Matri Female high T, low e Male low T, low e

Hybrid Female high T, high e Male…

This work has proposed three primary causes of autism and conditions characterized by maturational delay. All three causes impact fluctuating testosterone levels inside a mother, which determine her children’s maturation speeds and their, and societies’, social-structure proclivities. The three causes are matrifocal sexual selection trajectories (mate-selection proclivities), different ethnicities mating, thereby propelling shifts back to a common progenitor and a host of environmental influences that modify mother-father testosterone levels. Explore these etiologies in detail by clicking here, here and here.

I hypothesize that these are primary causes of autism. There are also the reasons that these hypothesized causes have been so difficult to uncover and address. I would suggest that politics, patriarchy and academic division are the main barriers to understanding autism’s origins.

Marxist anthropologist Chris Knight in his Blood Relations outlines a theory of evolution that revolves around female choice. He begins that work with an exploration of how it is that his particular perspective is not easily embraced. Knight proposes that the polarization of the West from the works of Marx and Engels obfuscated the works of theorists with matriarchal underpinnings. Theories of evolution with females…

A child’s lifelong maturation rates are set several weeks before birth by the mother’s testosterone levels. A mother with high testosterone gives birth to low testosterone males and high testosterone females. A low testosterone female raises high testosterone males and low testosterone females. Numerous factors influence a mother’s testosterone levels, including age, stress, exercise, smoking, alcohol, drugs, touch, diet and light. Radical elevations in a mother’s testosterone level can lead to extreme maturational delay and autism.

This scheme is part of a larger picture of how humans evolve. Changing maturation rates over generations send societies in one of two directions: matrifocal or patrifocal social structures. Low testosterone males mating with high testosterone females form the foundation of matrifocal social structure. High testosterone males pairing with low testosterone females make up patrifocal social structure. When mothers today exhibit matrifocal features, high testosterone, while exposed to environmental influences that elevate their testosterone further, male children with delay tendencies may shift into extreme delay.

This theory predicts that females with autism will not exhibit maturational delay, but maturational acceleration accompanied by elevated testosterone. When a mother’s testosterone level elevates, she not only influences the maturation rates of her children, she sends them on…

Autism researchers such as Simon Baron-Cohen have noted a pattern. The mother’s testosterone levels influence the likelihood of a child having autism. The higher the mother’s testosterone level, the more possible the child will be autistic. The work of the late Norman Geschwin in the early 1980s paved the way for this understanding. Still, the context in which the mother’s testosterone level makes sense is still not pursued by researchers seeking to understand the origins of autism. Neither Baron-Cohen nor Geschwin have backgrounds in evolutionary biology, which might have provided them an introduction to arcane nineteenth century alternative theories of evolution. We all suffer the effects of a century of obsession with Darwin’s theory of natural selection.

One of the patterns that a commitment to natural selection masks is that evolution can happen extremely quickly, in a single lifetime. Darwin was aware of single-generational change and struggled for an explanatory principle. He called his theory pangenesis. According to pangenesis, the body manufactures gemmules that can carry information informing the body of environmental change, which the body responds to, modifying progeny in response.

We call them hormones.

We live in a post-Mendelian age. When a cloned sheep emerges from the mother…

A child exhibits characteristics from both parents. The parents’ features in their children can complement each other in ways that reinforce and even encourage specific maturational trajectories. For example, pairing two musician parents not only increases the chance of a musically inclined child, but also increases the chance that the child will be maturational delayed. Maturational delay is a hallmark of creativity, encouraging a child with an infatuation for pattern and form. Keep boosting the maturational delay and a line gets crossed where infatuation with pattern eclipses a facility to communicate internal experience. How the environment affects the parents can determine how this line gets crossed.

“Disorders” characterized by maturational delay, such as autism and Asperger’s, are encouraged by the choices we make when we fall in love, in addition to what we expose ourselves to as we live our lives. The previous two entries outline the influence of mate selection on the origin of autism in our children. Working in cooperation with sexual selection are environmental influences that compel how children’s social and mental lives unfold.

Since the death of Darwin, little thought has been given to how the environment might influence human evolution in a single lifetime. Politics…