Which of the following approaches was popular during the early days of modern psychology?

Vygotsky believed that complex mental activities have their origin in

A) sensorimotor behavior. B) perception, attention, and memory. C) social interaction. D) developmental quotients.

Baron (1986) has found that flashing lights can cause the same social facilitation effects as the presence of other people. These findings support the idea that ________ is the source of arousal that enhances performance on simple tasks

a. evaluation apprehension b. increased vigilance c. distraction d. reactance