1. What is motivation? There are three main types of theories on motivation (biological, psychosocial, and biopsychosocial theories). Describe each of these theories.
Motivation consists of a set of factors that activate, direct, and maintain behavior and also influence goal-oriented behavior. It also accounts for the variability in people’s behaviors and performance. The first main type of motivation is biological motivation. The first, biological motivation is composed of three parts, instinct, where motivation is resulted from innate, biological instincts, which are unlearned responses found usually in a whole species. Drive reduction, which is motivation that begins with a biological need that elicits a drive toward behavior that will satisfy the original need and restore homeostasis. The third part of biological motivation is optimal arousal where organisms are in a general state of alertness and are motivated to achieve and maintain an optimal level of arousal. it also involves activation of sympathetic nervous system. The second type of motivation is psychological, and consists on incentive, which is when motivation results from an external stimuli that pull the organism a certain way, and cognitive, which has to do with attributions that explain the causes of behavior and how we interpret our own or others actions. The third type of motivation, biopsychosocial, deals with Maslow's hierarchy of needs, where lower needs, like hunger and safety must be satisfied before proceeding to higher needs like love needs or self-actualization.
2. Describe the roots of the hunger motivation, and how eating disorders may possibly develop.
The first root of hunger motivation is biological factors including the brain and genetics. In the brain, the lateral hypothalamus stimulates eating and brings on hunger, electrical stimulation to this area caused a rat to eat, and lesions in this area caused a rat not to eat. The ventromedial hypothalamus sends