About eight months ago, 14-year-old Shelley went on a drastic weight-loss diet that caused her to drop from 110 to 80 pounds. Although she is now dangerously underweight and under-nourished, she continues to think she looks fat. Her frustrated father recently forced her to eat a peanut butter sandwich, but Shelley immediately went to the bathroom and threw it all up. Shelley most clearly suffers from

Homeostasis, which is the goal of drive reduction, is defined as

Hunger is increased by ________; it is decreased by ________.

The role of learning in motivation is most obvious from the influence of

Victims of a famine will often eat unappetizing and nutritionally poor foods simply to relieve their constant hunger. Their behavior is best explained in terms of

Financial satisfaction is more strongly predictive of subjective well-being in poor nations than in wealthy ones. This fact would most clearly be anticipated by

A complex, unlearned, and fixed pattern of behavior common to all members of a species is called a(n)

Psychologists have used four perspectives in their efforts to explain motivation. These include an emphasis on instincts, optimum arousal, a hierarchy of motives, and

According to Maslow, our need for ________ must be met before we are preoccupied with satisfying our need for ________.

Over the past 50 years, American women have expressed ________ satisfaction with their physical appearance and have experienced a(n) ________ incidence of serious eating disorders.