Psychologists in the early to mid part of the 20?? century had difficulty with the notion that wake and sleep cycles were generated from within the body because:
A) there was no scientific evidence to support this notion.
B) all species operate on the same cycle.
C) at that time there were no recorded sleep disorders.
D) they accepted the theory that all behaviors were responses to stimuli.

Question

Quizplus · Accepted Answer

Psychologists in the early to mid part of the 20th century were heavily influenced by behaviorism, which held that all behaviors were responses to stimuli in the environment. This made it difficult for them to accept the idea that sleep and wakefulness were generated from within the body.

Psychologists in the Early to Mid Part of the 20