Teaching a dog to salivate when it sees a square, but not to salivate when it sees a triangle is an example of ______ .

A psychologist using the method of naturalistic observation would

a. carefully design controlled situations in which to observe behavior. b. rely on observations of subjects' responses to questionnaires. c. observe behavior as it happens in actual settings outside the laboratory or clinic. d. make careful records of the behavior of clients treated during the course of therapy.

An example of a survival behavior that is accompanied by the release of endogenous opiates would be ________

Fill in the blank with the appropriate word.