Until the age of one, Joel did not babble or point to things, nor did he make proper eye contact. Moreover, he regularly swayed his body and seemed more interested in inanimate objects. Joel could hardly speak even at 18 months. Joel is most likely to be diagnosed with ________ disorder.

What can we conclude about cultural identity during adolescence?

a. During this stage, the majority of both males and females ignore their ethnic identity. b. Adolescence is a stage in which young people typically develop a strong pride in their cultural identity—whether they are male or female. c. Males who are strongly identified with their cultural identity often have their masculinity questioned. d. The research has not consistently found gender differences in cultural identity.

Drugs that inactivate monoamine oxidase would be expected to __________.

A. reduce dopamine levels within the blood B. elevate acetylcholine levels within the muscles C. reduce serotonin levels in the synaptic cleft D. increase dopamine levels within neurons