Human pheromones and stressed-out conspecifics

The Making of a Bully

By Bhavana Weidmann | January 25, 2013

Excerpt: “Adolescent rats exposed to stress grow into pathologically aggressive adults, behaviors that may be explained by accompanying epigenetic changes and altered brain activity.”

My comment: A recent report of diet-driven changes in the genome of dogs compared to wolves and a recent report of behavioral differences driven only by chemosensory input during exploration in 3-4 week-old wolves, but by multisensory input in 4 week-old dogs, attest to the importance of the epigenetic effects of nutrient stressors combined with social stressors on the development of the brain and behavior.  It is also becoming clearer how nutrient-dependent stress and social stress epigenetically contribute to the microRNA / messenger RNA balance, intracellular signaling, and stochastic gene expression in the amygdala, which apparently is how learning and memory is epigenetically effected by food odors and pheromones in mammals.

As the molecular mechanisms of cause and effect become clear, is there any reason to suspect that adaptive evolution of the brain and behavior in mammals (e.g., dogs and wolves) is less dependent on nutrients and pheromones than the hormone-organized and hormone-activated brain development and behavior of invertebrates? If not, then “Olfaction and odor receptors provide a clear evolutionary trail that can be followed from unicellular organisms to insects to humans.” If so, social programs might at least begin to consider the role of human pheromones (or their absence) as social stressors that alter adolescent and adult behavior in precisely the same way they alter the behavioral differences of all species (as exemplified in subspecies like in the wolves and dogs). If the epigenetic effects are on the molecular mechanisms of  adaptively evolved brain development in other species, how can we eliminate human pheromones from consideration in social programs designed to help our stressed-out conspecifics?

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