What principle is demonstrated by the findings that mechanical stimulation of the genitals elicits sex-related behaviors in animals whose spinal cord has been cut?
a. Sexual reflexes cannot occur without the brain.
b. The brain is not required for the sexual reflexes of erection and ejaculation.
c. Sexual orientation is dependent on spinal mechanisms.
d. Pathways from the hypothalamus to the spinal cord are key to sexual behavior.
e. Male sexual behavior can at times appear to be brainless.
Question 2
Which of the following is true of pheromone action in humans?
a. Menstrual cycles are delayed by exposure to human sweat.
b. Women are attracted to the underarm sweat from men.
c. Men rate T-shirts worn by women during their fertile phase as more pleasant than T-shirts worn during their non-fertile phase.
d. Men and women show decreased sexual behavior after exposure to pheromones.
e. Men are quite attracted to the underarm sweat from women.
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