Human pheromones, social deprivation, and brain growth

MRI study shows social deprivation has a measurable effect on brain growth.” July 23rd, 2012.

Excerpt: “Increasingly we are finding evidence that exposure to childhood adversity has a negative effect on brain development,” says Sheridan. “The implications are wide ranging, not just for institutionalized children but also for children exposed to abuse, abandonment, violence during war, extreme poverty and other adversities.”

More information:Variation in neural development as a result of exposure to institutionalization early in childhood,” by Margaret A. Sheridan et al., PNAS, 2012. [*This Direct Submission article had a prearranged editor:  Bruce McEwen]

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My comment:

It appears to be the epigenetic effect of mammalian pheromones, including human pheromones, on luteinizing hormone and white matter/gray matter ratios that is responsible for the differences in brain growth. These findings exemplify how the molecular biology that is common to all species links nutrient chemicals (e.g., in food) and pheromones (i.e., social odors) directly to adaptive evolution. This includes a direct link to human brain development, via ecological, social, neurogenic, and socio-cognitive niche construction.

If it is something else that’s associated with the epigenetic effects of the social environment on brain development, is there a model for that?

See my model for comparison: Kohl, J.V. (2012) Human pheromones and food odors: epigenetic influences on the socioaffective nature of evolved behaviors. Socioaffective Neuroscience & Psychology, 2: 17338.

About James V. Kohl 1307 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