That human female breasts typical mammalian breast tissue is small  are found sexually attractive by many men is in agreement with sexual selection acting on human females secondary sexual characteristics. In Mason I. While sexually selected ornaments such as peacock feathers and moose antlers develop either during or after puberty, timing their costs to a sexually mature age, human brains expend large amounts of nutrients building myelin and other brain mechanisms for efficient communication between the neurons early in life. Open access online Carter, C. Chimpanzee—human Gorilla—human Orangutan—human Gibbon—human.
Annu Rev Psychol. ; doi: /annurev-psych Epub Sep Oxytocin pathways and the evolution of human behavior. Request PDF | Oxytocin Pathways and the Evolution of Human Behavior | This review examines the hypothesis that oxytocin pathways-which include the.
This review examines the hypothesis that oxytocin pathways—which include the neuropeptide oxytocin, the related peptide vasopressin, and their.
On a mechanistic level these changes are believed to be the result of a systemic downregulation of the sympathetic nervous system the fight-or-flight reflex. However, this explanation cannot be applied to humans and other species, predominantly other mammals that live in stable, established social groupings.
Cell DNA Flagella Eukaryotes symbiogenesis chromosome endomembrane system mitochondria nucleus plastids In animals eye hair auditory ossicle nervous system brain. Oslo: Scientifur.
Oxytocin pathways and the evolution of human behavior.
One common characteristic that is present in species of "high degree intelligence" i. Evolutionary Anthropology: Issues, News, and Reviews. This adaption will develop by natural selection when two parties can make themselves better off than they were before by exchanging things one party values less for things the other party values for more.
|Research focus Dr.
Thus, in general there's a correlation between brain volume and intelligence. Bibcode : Natur.
Video: Oxytocin pathways and the evolution of human behavior IB Psychology - Evolution and Behaviour: What is an evolutionary explanation?
Genetics Home Reference. Oxytocin also helps to regulate the autonomic nervous system, with consequences for sensory, visceral, metabolic, and smooth motor systems.
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This review examines the hypothesis that oxytocin pathways—which include the neuropeptide oxytocin, the related peptide vasopressin, and.
Hormones and Behavior. Throughout the lifespan oxytocin may increase social sensitivity and modulate reactivity to stressors.
However, those microcephaly-causing variants were not included in the studies published in They spread throughout Africa over the following approximately 50, years. Previc emphasizes the contribution of nutritional factors, especially meat and shellfish consumption, to elevations of dopaminergic activity in the brain, which may have been responsible for the evolution of human intelligence since dopamine is crucial to working memory, cognitive shifting, abstract, distant concepts, and other hallmarks of advanced intelligence.
Abstract: This review examines the hypothesis that oxytocin pathways--which include.
[PDF] Oxytocin pathways and the evolution of human behavior. Semantic Scholar
All rights reserved /annurev-psych CARTER OXYTOCIN AND HUMAN EVOLUTION O XYTOCIN P ATHWAYS AND THE E. Oxytocin Pathways and the Evolution of Human Behavior.
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Further information: IntelligenceArchaic humansBehavioral modernityand Early human migration. Vasopressin may be of particular importance in males but also has functions in females.
Oxytocin Pathways and the Evolution of Human Behavior Peeref
Finally, several research groups have tried and failed to show any correlation between the variants described in the papers and IQ reading abilities, or verbal abilities. Doi: For example, if only individuals capable of remembering what they had agreed to were punished for breaking agreements, evolution would have selected against the ability to remember what one had agreed to.
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|Since the disability principle is about selection from disabilities in sexually immature individuals, which increases the offspring's chance of survival to reproductive age, disabilities would be selected against and not for by the above mechanism.
Mathieu ed. One consequence of this was that the north African tropical forest began to retreat, being replaced first by open grasslands and eventually by desert the modern Sahara. Education Ph. Human intelligence topics.
Video: Oxytocin pathways and the evolution of human behavior 3. Behavioral Evolution II