Which of the following negative symptoms of schizophrenia defines "flat affect"?
A. Inability to initiate and persist in activities
B. Inability to experience pleasure
C. Lack of emotional response, and a blank facial expression
D. Lack of speech content and/or slowed speech response
Answer: C
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Several methods enable researchers to present a stimulus that reaches the eyes without the person seeing the stimulus consciously. Which of the following is NOT one of those methods?
a. Binocular rivalry b. Flash suppression c. Backward masking d. Functional magnetic resonance imaging
Which of the following statements reflects "circumstantial evidence" for the dopamine theory of schizophrenia?
a. Antipsychotic drugs (neuroleptics) act as dopamine agonists, increasing the amount of dopamine in the brain. b. Antipsychotic drugs (neuroleptics) can produce symptoms similar to those of Parkinson's disease (a disorder due to insufficient dopamine). c. The drug L-dopa, a dopamine agonist, is used to treat schizophrenic symptoms in patients with Parkinson's disease. d. Amphetamines, which activate dopamine, can lessen psychotic symptoms in people with schizophrenia.
The technique that involves testing the person on a large number of personality dimensions repeatedly over a number of different occasions, providing a means of discovering the unique trait structure of the person, is the:
a. C technique b. PF technique c. Z technique d. P technique
Negative color afterimages are examples of the ________ theory
A) saccadic eye movement B) opponent-process C) Young-Helmholtz D) trichromatic