"Associativity" in the Hebbian synapse refers to the
a. use of the same type of neurotransmitter in both the pre- and postsynaptic neurons
b. simultaneous activity of several synapses on the same postsynaptic neuron.
c. nearly simultaneous activity of the pre- and postsynaptic neurons.
d. ability of the postsynaptic cell to use retrograde messengers such as NO to communicate with the presynaptic cell.
c
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Which of the following has been shown to retard the degenerative effects of aging?
a. Working at a desk job b. Sleeping nine hours per day c. Spending substantial time in strong sunshine d. Following a regular program of physical activity
Parkinson's disease patients lack an adequate amount of dopamine due to malfunction of:
a. the medulla and pons of the hindbrain b. the hypothalamus of the forebrain c. the cerebral cortex of the forebrain d. the substantia nigra of the midbrain
What are the findings from cross-sectional studies on IQ that are no longer thought to be true?
A. Intelligence peaks in early adulthood, declines through middle adulthood, and drops steeply in late adulthood. B. Intelligence varies by gender with males' IQ showing greater declines over time than females' IQ. C. IQ scores increase into middle adulthood. D. Intelligence varies by gender with females' IQ showing greater declines over time than males' IQ.
George has a very high view of himself. He is bold and assertive and most people think of him as conceited. What type of narcissism does George have?
a. grandiose narcissism b. vulnerable narcissism c. aggressive narcissism d. egocentric narcissism