The Y-intercept is the value of Y when the value of X is equal to _____
a. its lowest score
b. its highest score
c. its mean
d. zero
D
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Padma is extremely confident and feels that lately she needs very little sleep. In addition, she reports that her thoughts seem to be going fast—similar to watching three television shows at once. Padma most likely is experiencing ________
a) a manic episode b) a dysthymic episode c) a loss of mental control d) a psychotic break
Why is it that older adults seem to have declines in their psychomotor speed and their working memories when compared to younger adults?
a. Because they experience a reduction in neurofibrillary tangles, which inhibits the ability of neurons to send messages at a maximally efficient speed. b. Because they experience a reduction in the ability of the corpus callosum to send messages from one cerebral hemisphere to the other. c. Because they experience more neuronal death in the diencephalon (the thalamus and hypothalamus), which hinders these cognitive skills. d. Because they show greater activation of the prefrontal cortex on easier tasks, thus "using up" their brain power before they ascend to more difficult tasks.
Entertaining any and all solutions to a problem is known as
a. brainstorming. b. problem solving. c. open-ended insight. d. creative flexibility.
What is the evidence for structural damage in the brains of patients with schizophrenia? a. All patients with schizophrenia have smaller ventricles in their brains
b. In some patients with schizophrenia, there is an excess amount of "gray matter" in the cerebral cortex. c. The majority of patients with schizophrenia have enlarged ventricles in their brains. d. Many patients with schizophrenia have increased activity in the frontal lobes of the brain.