What are two determinants of whether a species sleeps a great deal or a little?
a) activity level and need for food
b) activity level and vulnerability to predators
c) need for food and vulnerability to predators
d) how intelligent the species is and where it lives
C
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Current neurochemical hypotheses regarding schizophrenia focus on
a. dopamine deficiencies. b. excessive levels of dopamine. c. a broad array of neurotransmitters. d. dietary deficiencies.
After being bitten by a dog, Kenrick finds that he feels afraid whenever he sees a dog. He goes for treatment, where he is gradually exposed to dogs until he can be in the same room with one without feeling any fear. Three weeks later, while walking in his neighborhood, Kenrick hears a dog barking viciously. For a few weeks after this, his fear returns. This shows __________.
A. the treatment had no effect B. extinction C. stimulus-stimulus expectancy D. spontaneous recovery
Which of the following language patterns is common in autistic children?
a. Executive disturbance b. Echolalia c. Echopraxia d. Linguistic hallucinations
Which of the following is NOT true about a hypomanic manic episode? a. It is not necessarily impairing for an individual
b. It involves cognitive and physical changes. c. It causes marked impairment in social or occupational functioning. d. It need only last four days.