While pregnant and at her doctor office, Irene has a needle inserted through her abdomen and uterus. The doctor says that she wants to obtain a sample of amniotic fluid for analysis. What procedure is taking place?

A puzzling finding from research on medication for schizophrenia is that

a) a therapeutic effect is only produced when dopamine levels drop below normal. b) medications that influence other neurotransmitter systems have no effect. c) there is no association between degree of brain abnormality and medication effect. d) medications do not appear to affect schizophrenia attributed primarily to the environment.

Individuals with schizophrenic disorders tend to show better social functioning and better treatment outcomes when

a. positive and negative symptoms are both evident at the same time. b. the predominant symptoms include behavioral excesses or peculiarities. c. positive and negative symptoms alternate throughout the schizophrenic episodes. d. the predominant symptoms include behavioral deficits.