PSYC 100 Lecture Notes - Lecture 16: Estrous Cycle, Sexual Dysfunction, Hypoactive Sexual Desire Disorder

• School: McGill University
• Department: Psychology
• Course: PSYC 100
• Professor: Allan Greer

Document Summary

Biological classi cation based on genetic composition, anatomy, and hormones. Psychological and social phenomena associated with being feminine or masculine as these concepts are de ned in given culture. Possess two gonads of same kind, but external genitalia and secondary sex characteristics do not match chromosomal makeup. 5-alpha reductase converts testosterone (t) to dihydrotesoterone (dht) Dht more potent than t leads to female morphology until puberty, follow by conversion to male at puberty. Most basic determinant of hewer individual is male or female. 23rd pair of chromosomes determines person"s sex. Make has x & y chromosome, whereas female has two x chromosomes. Human embryos have an undifferentiated, or all-purpose, gonad (sex gland) that can become either testis or ovary. Presence of y chromosome directs undifferentiated gonad to develop into testis. Can have major implications for later development. Males are usually attracted to females, and vice versa.