1. Rodney has been diagnosed with schizophrenia. He rarely smiles and often shows little emotion to any situation. Psychologists refer to this characteristic as a. catatonia. b. flat affect. c....

1. Rodney has been diagnosed with schizophrenia. He rarely smiles and often shows little emotion to any situation. Psychologists refer to this characteristic as

a. catatonia.

b. flat affect.

c. positive symptoms.

d. negative symptoms.

2. What neurotransmitter was first believed to be the cause of schizophrenia?

a. GABA

b. serotonin

c. epinephrine

d. dopamine

3. Survivors of natural disasters like Hurricane Sandy in 2012 may experience higher incidences of

a. depression.

b. posttraumatic stress disorder.

c. anxiety disorders.

d. schizophrenia.