An example of a very typical approach to the proof of the innate nature of heterosexual behavior is a book Svyadosch AM "Women's sexual pathology" . His whole argument rests on a dogma, in which he strongly believes: According to this dogma, all that is due to the instincts of the animals due to the instincts in man. "Stimulants sexual function, in addition to hormones and tactile stimulation of erogenous zones, can be the so-called key stimuli, or releasers (from English to release -. To release, release). This signals including these or other vegetative or certain reaction behavior algorithms (instinctive actions). Thus, the chicken just hatched from the egg in the incubator, and has never seen a chicken begins to peck at the black points on the floor. Nobody taught him that. Black dots are key stimuli, including the reaction to it.