To measure temporal summation in single cells, researchers ____.
A. attach electrodes to the scalp
B. insert an microelectrode into the scalp
C. collect sodium and potassium ions from nearby glial cells
D. record depolarizations of the postsynaptic neuron
Answer: D
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People in a group are nervous, very quiet, and overly polite because they have only just met one another. The group is
a. not yet officially a group. b. experiencing conflict. c. in the forming, or orientation, stage. d. in the task-performance stage. e. in the individual-collective stage.
The ratio of rods to cones is approximately
a. 10 to 1 b. 1 to 10 c. 20 to 1 d. 1 to 20 e. 1 to 1
Darwin's theory of evolution and natural selection was extremely influential in the development of:
a. structuralism b. psychoanalytic psychology c. functionalism d. humanistic psychology
Instinct theory as an explanation of motivation would best be considered a ____ theory
a. ?sociological b. ?learning c. ?biological d. ?cognitive