The greatest number of neurons and synapses is contained in the ________

In terms of usefulness and reliability, which of the following is true of Vygotsky's sociocultural theory?

A) It is far more useful than information-processing theory because it has more empirical support. B) It relies too much on empiricism to support its application. C) There is insufficient evidence at present to either support or contradict most of his theory. D) It has more empirical and research support than Piaget's theory.

The primary effect of endorphins is to:

a. reduce pain but also reduce pleasure. b. heighten pain and reduce pleasure. c. flatten mood and emotional expression. d. reduce pain and promote pleasure.