Odor preferences are ecological adaptations

Does Singld Out, a gene-based dating service, pass the sniff test?

Excerpt:The evolution of odour preference

When we think about the evolutionary threats faced by our ancestors, we like to imagine sabre-tooth tigers and angry, spear-wielding tribesmen. In reality, a great deal of natural, and indeed sexual selection, was driven by the pervasive threat of communicable disease.”

My comment: Try to place the evolution of sexual preferences into the context of mutations and natural selection. For example, see: The Biological Basis of Human Sexual Orientation: Is There a Role for Epigenetics? For contrast, place the variations in sexual preferences into the context of how food preferences develop in all organisms. The Mind’s Eyes: Human pheromones, neuroscience, and male sexual preferences. Gay males do not seem to be mutated straight males, so how did they evolve? Do they naturally select each other?

Gay, Straight, and the Reason Why: The Science of Sexual Orientation

p 210 ” James Kohl, an independent researcher who also markets “human pheromones” to the general public, believes that pheromones may have a primary influence in setting up a person’s basic sexual orientation. Other, more consciously perceived aspects of attractiveness, such as facial appearance, are attached to a person’s basic orientation through a process of association during early postnatal life, according to Kohl. 35″

p. 210 This model is attractive in that it solves the “binding problem” of sexual attraction. By that I mean the problem of why all the different features of men or women (visual appearance and feel of face, body, and genitals; voice quality, smell; personality and behavior, etc.) attract people as a more or less coherent package representing one sex, rather than as an arbitrary collage of male and female characteristics. If all these characteristics come to be attractive because they were experienced in association with a male- or female-specific pheromone, then they will naturally go together even in the absence of complex genetically coded instructions.”

The model also is attractive since it explains the “bonding problem” of sexual attraction that plagues some relationships. Bonding among heterospecifics versus conspecifics is nutrient-dependent and pheromone-controlled. The nutrients are linked from food odors to hormone-organized and hormone-activated behaviors of invertebrates and vertebrates. Humans sometimes act like other animals that may consistently eat the same food but lose interest in the pheromones of the same mate. The binding problem may become a bonding problem.

Androsterone-etiocholanolone ratios in male homosexuals

D’Scent of Man: A Comparative Survey of Primate Chemosignaling in Relation to Sex

Testosterone increases circulating dehydroepiandrosterone sulfate levels in the male rhesus macaque

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