PS102 Chapter 10: Chapter 10.docx
Document Summary
Motivation: a need or desire that directs behaviour towards a goal, motivation: involves goal-directed behaviour. 2: drive reduction theory minimizing tension. Instincts: drive: that should reduce this tension, drive theories is an internal state of tension that motivates an organism to engage in activities, many theories view motivational forces in terms of drives. This compensation apparently leads to increased hunger and decreased metabolism. Neural systems and motivation involved in creating reward states: nucleus accumbens, end of dopamine pathway, hypothalamus, review from brain and behaviour, pre-frontal cortex. Page 1 of 7: hypothalamus: is a tiny structure involved in the regulation of a variety of biological needs related. Physiology of hunger: homeostasis, mechanisms for detecting state of system, for correcting the situation return to set point, physiological determinants, hypothalamic regulation to survival. 1: responses: alter body intake & energy use. Motivation to eat: the genetics of weight, set points; identical twins, predisposition not predetermined, the environment and obesity.
