Download or read book Recent Role Changes Made by Women and the Effect These Changes Have Had on Marital Adjustment written by and published by . This book was released on 1975 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sex Roles, A History. From Insects to humans, gender is associated with specific behavior. Below the mammals there are sex differences in dominance that are correlated with androgen function on the inside, and with certain types of stimulation on the outside. In higher forms, the increasing complexity of brain development means increasing capacity for modification through experience and learned modes of adaptation to the environment. By the time the primate level is reached, social influences have become so intricate and compelling as to clearly foreshadow culture. According to Elizabeth Janeway in her article Reflections on the History of Women, in all cultures maleness and femaleness are institutionalized as status and become the core of the psychological identities of most individuals.