The main improvement in the 1908 Binet-Simon scale was the introduction of
a. the concept of mental age.
b. a control group.
c. a performance scale.
d. the IQ concept.
a
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In addition to providing structural support and protection for the axon of a neuron, what other very important function is served by the presence of a myelin sheath?
a. Dendritic stimulation b. Speeding up and strengthening neural messages. c. Facilitating re-uptake in the synaptic gap. d. Inhibiting the growth of pain-sensitive neurons.
The time course of the effects of antidepressant medications suggests that
A) changes in cellular functioning are necessary to alleviate the symptoms of depression. B) low dopamine levels are the underlying problem in depression. C) the effectiveness of the TCAs and SSRIs is largely a placebo effect. D) altered synaptic activity is not the source of a depressed mood state.