Age losses on the most difficult memory tests begin in the _____.

Biofeedback is a therapeutic technique involving:

a. focusing on a specific thought or sensation, such as an image or a repeated sound. b. attending to all thoughts, sensations, and feelings without attempting to judge or control them. c. the use of physiological recording instruments to provide feedback that increases awareness of bodily responses. d. bodily interaction with thinking and emotion.

Differences between monozygotic twins are the results of ______ differences

a. subtle genetic c. personality b. significant genetic d. environmental