Human evolution theory utilizing concepts of neoteny & female sexual selection
An etiology of neuropsychological disorders such as autism and dyslexia, and the origin of left handedness.

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Section V

Summary in the Form of Postulates

Postulate 1: The process of evolution, the rules of species transformation, evolves. The rules change. Different rules apply to different species, the rules becoming more intricate and subtle with the increase in complexity in hormonal systems.

Postulate 2: At specific points in evolutionary history shifts away from random variation began, and there have been several such shifts over the course of evolution. Variation became less random because any individual with an ability to reduce the random nature of the variability in the characteristics of their progeny would increase their progeny's survival and procreation rate. Natural selection selects for those individuals that could transcend the random variation barrier by creating progeny with characteristics pre-chosen for an established or a changing environment.

Postulate 3: Ontogeny is the manifestation of the sequence of ancestral hormonal evolutionary changes. Ontogeny, growth and maturation from conception, is a hormonal reenactment of the hormonal changes our ancestors engaged in.

Postulate 4a: The human species moves through time within a developmental arc from developmentally delayed to developmentally accelerated, the characteristics of individuals determined by the effects through natural selection, sexual selection, uterine selection, and zygote selection, (on the rate and timing of maturation), generating a balanced polymorphism in the species. The full span of the developmental arc contributes to the healthy diversity of the human species.

Postulate 4b: Uterine selection is that process by which an embryo, genetically predisposed, adjusts its developmental and maturational rates and timing in response to the mother's hormonal signals. Females with high T give birth to females with high T and males with low. Low T females create low T females and high T males.

Postulate 4c: Female Zygote selection is a conservative force in the selective process, a generation removed from uterine selection and male zygote selection. A female's eggs are being created at the same time as she herself is growing in her mother's womb. It is a combination of her mother's uterine environment, her mother's egg, and the character of her father's sperm, that generate the initial features of her eggs.

Postulate 4d: In male zygote selection the estimated testosterone levels of the progeny produced by human males will reflect the testosterone levels in the father at the time of sperm creation. Human males influence the testosterone levels of their progeny by the testosterone levels they maintain during sperm creation. Males with high levels of testosterone will produce males with high levels of testosterone and females with low testosterone. Males with low levels of testosterone will produce males with low levels of testosterone and females with high level. Testosterone levels can be varied intentionally or unintentionally reflecting factors such as levels of smoking, drinking, diet, stress, exercise, light, etc.

Postulate 5: In humans there are (at least) eight environmental cues which influence somatic levels of testosterone (and estrogen) thereby influencing the rate and timing of development and maturation though uterine and zygote selection. The eight cues are light, diet, stress, fat as a percentage of total body weight, alcohol and drugs, tobacco, physical activity, and touch.

Postulate 6: The distribution of features selected for in females reflects an individual's location on the developmental spectrum. High testosterone (T) females (the older genotype) are at the accelerated end of the developmental spectrum compared to the low T females at the developmentally delayed end of the spectrum. Females at the right end are markedly more neotenous and/or hypermorphic than left end females. At the left end, relative to the females at the right end, the females are more left-handed and ambidextrous.

Postulate 7:The distribution of features selected for in males reflects an individual's location on the developmental spectrum. Low T males (the older genotype) are at the delayed end of the developmental spectrum compared to the high T males at the other end. At the left end, relative to the males at the right end, the males have bigger brains, more symmetrical cerebral hemispheres, larger corpus callosums, lower T, slower metabolic rates, a less acute sense of the passing of time, increased left handedness and ambidextrousness, and increased agility and coordination. Males at the left end are markedly more neotenous and/or hypermorphic than males at the right end.

Postulate 8: In human beings and many other species, there is an inverse relationship between the amount of sperm produced and testosterone levels at the time of sperm creation. Less social, more aggressive, higher T males are inclined toward harem, polygynous, or monogamous social structures will have smaller testicles and produce less sperm than the larger testicled more social, lower T, promiscuous social structure males.

Postulate 9: Selective processes resulting in an increase in neotenous or hypermorphic features; whether that be selecting for increased sociability, cooperativeness, or 'tamed' behavior; results in increased sexuality in the form of more frequent estrus and increased sperm production. When embryonic features are prolonged into adulthood there is an increase in sexuality.

Postulate 10: Increased brain lateralization over the course of hominid evolution may have been a result of fluctuating levels of testosterone influencing the relative rates and timing of the growth of the two hemispheres through uterine and zygote selection. High female uterine T and/or low male zygote T together may have increased lateralization, influencing language development by increased hemispheric dissociation.

Postulate 11: A single condition or disease can have two, or theoretically four manifestations at the extreme ends of the developmental arc or spectrum, with different etiologies, requiring different interventions depending on whether the individual is male, female, developmentally delayed or accelerated.

Postulate 12: The specific genetic, environmental, and pathological influences on ontogeny can be isolated and identified with interventions developed around hypothesized etiologies. The tools available are: Annett's peg tests; comparisons of brain, planum temporale, and corpus callosum sizes; T levels; metabolic rates; developmental stage markers; family histories; and special strengths and talents used for sorting out the specific influences on developmental rate; pubertal onset; lack of touch and music during infancy; and pathological causes such as the effects of alcohol & drugs, difficult births, uterine T effects, etc.

Postulate 13: Raised testosterone can have negative effects on the immune and autoimmune systems, the eight environmental variables (see postulate 5) often masking the natural T levels. By assessing where a person naturally belongs on the left-right scale, a person's natural T level can be calculated. Once a person's natural T level is known, the same eight variables can be used to change T, bringing that person in line with his or her natural immune and autoimmune threshold.

Postulate 14a: Dance (and song) were primary forces in the dramatic brain size increases in hominid evolution. Sexual selection based on an aesthetic increased the speed of brain size exponentially because the demonstrator of the art was practicing an intangible with no evident ceiling in the exercising of the skill.

Postulate 14b: Song (and dance) as an aspect of sexual selection led to the evolution of language. Sound and movement evolved into song which then became ritual and myth expressed in symbol which transformed into sign and emerged as language.

Postulate 14c: Dance and Song---in combination with females choosing males with lower T--- formed a feedback loop. This combination of forces was responsible for both the exponential rise in brain size and the appearance of language.

Postulate 15: Relative testosterone levels in males and females inform matrifocal vs patrifocal societal structure. High T females choose low T males for their cooperative abilities creating more egalitarian matrifocal cultures. High T males choose low T females for their ability to be the compliment to male authority, forming patrifocal cultures.

Postulate 16: Female infanticide is patrifocal culture's method for keeping only high T males in the procreation pool. In polygynous society engaging in female infanticide there are far fewer females than males to mate. The males considered least desirable as husbands by the fathers of the females to be married go mateless. Female infanticide is an example of the patrifocal co-option of sexual selection from the female.

Postulate 17: Periods of innovation will be proceeded by periods of romance, by changes in the selection criteria by which females pick their mates, or a widening of the selection criteria for the ideal male. Shifts to increases in the variety of acceptable features in the procreation population will result in increases in cultural and technical variation. For example, if female infanticide is a tool used for patrifocal cultural stability; decreases in female infanticide over time within a culture will correlate with increases in societal and economic variation.

Postulate 18: Cultures (relatively) recently transplanted from an equatorial or tropical genesis, may evidence highly fluctuating seasonal testosterone levels, compared to long established cultures , resulting in extreme developmentally delayed or accelerated zygote selective effects. Higher frequencies of specific conditions and diseases in Blacks and Jews, in addition to their peculiar lateralization and handedness distributions, may result from these ancestral migration patterns (in concert with little genetic mixing).

Postulate 19: The migration diffusion of ethnic peoples approximately 100 M years ago should reflect contemporary cultural geographic patterns evidencing the same (- -) to (+ +) developmental spectrum. African males and females reflect matrifocal cultural ancestry. Asian males and females reflect a highly patrifocal cultural ancestry. For example African males have almost twice the testicle size, taking into consideration body mass, as Asian males reflecting a closer proximity to an ancestry of promiscuous social structures than the Asian patrifocal emphasis with widespread female infanticide. Asian females evidence far more neotenous features than African females.

Postulate 20: Puberty or Progenesis in humans when dropped to a younger age by several years has neurological and cognitive repercussions. In addition to an increase in depression and bi-polar disorder, there is a general curtailment of the final stages of cognitive development.

Postulate 21: For left spectrum genotypes, constant touch and music from birth through early childhood are often essential for normal development and maturation. Without this stimulation there is potential for reduction in corpus callosum size and asymmetrical development of the planum temporal; male individuals developing to become strongly left-handed, as opposed to mildly left-handed with ambidextrousness, testosterone levels normal or high rather than the expected low. Female left spectrum individuals without these stimulants would evidence low testosterone, and strong left-handedness as opposed to mild left-handedness and ambidextrousness.

Postulate 22: The contemporary Western civilization disassociation from spiritual experience may be directly related to the drop in age for the onset of puberty due to dietary changes resulting in a diminution of brain growth in the final stages of cognitive development. Changes in diet could stop the triggering of the naturally selected response to increase procreation rates in response to an increase in dietary resources and could raise the age for puberty onset . The extra time for brain growth offers the return to a common western cultural experience of feeling-part-of-something-larger-than-the-self, with a reemergence of intuition as a respected form of knowledge.

Presuppositional Postulates (Non-provable useful theoretical foundations)

Postulate 1: There are four aspects of primary process, detailed by Gregory Bateson, that together create a process definition of a biological collective unconscious: a single time tense, the present; a single place, the one occupied; no negatives, only what is; and a deep compulsion to play. Shift theory presupposes that split consciousness is peculiarly human, that consciousness (the biological collective unconscious) is a characteristic of the whole system. This postulate creates the opportunity to perceive relationships not evident if one's presuppositions suggest that there can be no volitional connections between the environment and the human unconscious.

Postulate 2: feeling is a vital valid sense for forming theories from perceived experience; intuition being a powerful form of non-sequential logic. The only sense with non-binocular dimension or depth is the sense of feeling. Feeling is a simultaneous mapping of experience in three dimensions. Being in our body, experiencing our feelings, we inhabit a miniature universe where our awareness can experience the simultaneous interconnected nature of our individual parts and those extra-somatic variables contiguous to our sensory periphery,

Postulate 3a: There is a direct relationship between sexuality, play, and creativity; and the molecular/hormonal structure of life. Evolution is a flow and distribution of molecular creativity through embryonic ontogeny into post birth states. This current can culminate in a manifestation of a combination of sexuality, play, and creativity in the adult of a species, i.e. homo sapien.

Postulate 3b: Embryonic ontogenetic stages were once post-birth developmental stages in ancestors. Evolution is a flow and distribution (condensation) of ancestral innovations through ontogenization into the embryos of descendants.

Postulate 3c: Evolution is a two directional flow (1) of the distribution of embryonic creativity through ontogeny, into post birth states, culminating in the manifestation of sexuality, play, and creativity in adulthood and (2) a flow and distribution of ancestral after-birth innovations through ontogenization into the embryos of descendants.



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