Pheromone-induced odor learning

Pheromone-induced odor learning modifies Fos expression in the newborn rabbit brain

Article excerpts: “A single pairing of the odorant with the MP was then sufficient to rapidly induce a differential activation of brain regions assumed to play a role in associative processes, such as the amygdala and the posterior piriform cortex, during subsequent re-exposure to the learned odorant.”

“…learning-induced neuronal rearrangements that link the perception of an initially neutral odorant with motor responses related to the vital need of sucking.”

My comment:

Modified Fos expression indicates the direct epigenetic effect of the MP (i.e., the Mammary Pheromone) on intracellular signaling and stochastic gene expression that is required for adaptive evolution. It’s an innate (i.e., unlearned) response. The effect of the pheromone is the same as the effect of nutrient chemicals except for species specificity, which is required to link the genetically predisposed response to mammalian behaviors that are required for species survival in species from microbes to man (e.g., all of them that require nutrient chemicals for individual survival and the metabolism of the nutrient chemicals to pheromones that control reproduction).

Any attempt to make the response to pheromones one that must be learned is a misrepresentation of what is already known about cause and effect at the molecular level by those who are informed enough to know better. A recent interpretation of work with mice stated that smells must be learned before the behaviour can occur. If the genetically predisposed response to pheromones required learning in any species, it seems unlikely to me that there would be more than one species. Is there a model for that? Could a random mutation concurrently cause a change in the genome and another change in the genetic predisposition of an organism to respond to it sensory environment in the context of adaptive evolution– as is required where adaptive evolution is nutrient chemical-dependent and reproduction is pheromone controlled?

What if the first species had to learn how to respond to the pheromones of conspecifics before behaving appropriately in the context of that species  —  species-specific behaviors? Could we have evolved?

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