Human pheromones, face recognition, and other cognitive abilities

On the Genetic Basis of Face Cognition and its Relation to Fluid Cognitive Abilities
Astrid Kiy, Oliver Wilhelm, Andrea Hildebrandt, Martin Reuter & Werner Sommer, in Genes, Brain and Behavior (2013) DOI: 10.1111/gbb.12034 [subscription required]

Abstract Excerpt: “The sex specificity of this relationship is a novel finding and warrants a mechanistic explanation.”

My comment:
In Synchronous Evolution of an Odor Biosynthesis Pathway and Behavioral Response,
species- and sex-dependent behaviors are linked to nutrient-dependent pheromone-controlled adaptive evolution. There is a direct link from well-detailed and conserved molecular mechansims to hormone-organized and hormone-activated behaviors. For example, see: Feedback loops link odor and pheromone signaling with reproduction.

The complex systems biology of thermodynamically controlled protein biosynthesis and organism-level thermoregulation associated with adaptive evolution via nutrient-dependent mammalian pheromone production and distribution has not yet been directly linked to the genetic basis of face cognition and fluid cognitive abilities. However, we know that Pubertally born neurons and glia are functionally integrated into limbic and hypothalamic circuits of the male Syrian hamster, and that these circuits are involved in sex differences in behavior.

We also know that the circuitry of the oxytocin system and the dopaminergic system develop via associations with ecological, social, and neurogenic niche construction that depends on the conservation of gonadotropin releasing hormone and diversification of its receptor across 400 million years of vertebrate evolution. This links gonadotropin releasing hormone (GnRH) to oxytocin, dopamine, and to associated receptor-mediated behaviors. These receptor-mediated behaviors are obviously nutrient-dependent and pheromone-controlled in other species via the epigenetic effects of food odors and pheromones on genes in cells of tissue in the mammalian brain. That brain tissue secretes GnRH.

This suggests that conserved molecular mechanisms link amino acid substitutions to thermodynamic control of genetically predisposed socio-cognitive niche construction and sex differences in face recognition via olfaction and odor receptors, which provide a clear evolutionary trail that can be followed from unicellular organisms to insects to humans. This clear evolutionary trail, which incorporates ecological, social, neurogenic, and socio-cognitive niche construction, suggests that the species specificity and the sex specificity of the novel relationship mentioned here warrants a mechanistic explanation that is comparable to the one that incorporates the epigenetic effects of food odors and pheromones on adaptive evolution. At some point, the number of suggestions that attest to the conserved molecular mechanisms of cause and effect becomes more important than theory to explanations of face recognition and behavior.

It has been difficult to theoretically link human-specific mutations from existing brain areas in other species to cognitive phenotype. It may be easier to use a model of adaptive evolution sans mutations theory; one with examples of epigenetic cause and effect across species.

About James V. Kohl 1308 Articles
James Vaughn Kohl was the first to accurately conceptualize human pheromones, and began presenting his findings to the scientific community in 1992. He continues to present to, and publish for, diverse scientific and lay audiences, while constantly monitoring the scientific presses for new information that is relevant to the development of his initial and ongoing conceptualization of human pheromones. Recently, Kohl integrated scientific evidence that pinpoints the evolved neurophysiological mechanism that links olfactory/pheromonal input to genes in hormone-secreting cells of tissue in a specific area of the brain that is primarily involved in the sensory integration of olfactory and visual input, and in the development of human sexual preferences. His award-winning 2007 article/book chapter on multisensory integration: The Mind’s Eyes: Human pheromones, neuroscience, and male sexual preferences followed an award winning 2001 publication: Human pheromones: integrating neuroendocrinology and ethology, which was coauthored by disinguished researchers from Vienna. Rarely do researchers win awards in multiple disciplines, but Kohl’s 2001 award was for neuroscience, and his 2007 “Reiss Theory” award was for social science. Kohl has worked as a medical laboratory scientist since 1974, and he has devoted more than twenty-five years to researching the relationship between the sense of smell and the development of human sexual preferences. Unlike many researchers who work with non-human subjects, medical laboratory scientists use the latest technology from many scientific disciplines to perform a variety of specialized diagnostic medical testing on people. James V. Kohl is certified with: * American Society for Clinical Pathology * American Medical Technologists James V. Kohl is a member of: * Society for Neuroscience * Society for Behavioral Neuroendocrinology * Association for Chemoreception Sciences * Society for the Scientific Study of Sexuality * International Society for Human Ethology * American Society for Clinical Laboratory Science * Mensa, the international high IQ society