The absence of a mammalian neuroendocrine model for sexual attraction that is primarily based on visual input suggests that olfactory input conditions visual aspects of human sexual attraction. Application of male axillary extracts affects LH pulsatility, which can be used as an assay to isolate the active components of axillary extracts. In 1992, the link among the sense of smell, LH, and sex was questionable. Women showed clear physiological responses to both compounds only in the presence of a man. These data suggest that these steroids interact with social or biological context when producing both psychological and physiological effects.
People are able to use odor cues to distinguish the emotional state of others.
From fertilization to adult sexual behavior. Hormones and Behavior . Abstract HERE . Abstract HERE . Definative evidence that human pheromones influence levels of luteinizing hormone.