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PSY100Y5 Full Course Notes
Motivation refers to the moving force that energizes behaviour. Homeostasis: s state of physiological equilibrium or stability. Drive theories (hull) apply the concept of homeostasis to behaviour. A drive is an internal state of tension that motivates an organism to engage in activities that should reduce this tension. According to drive theories, when individuals experience a drive, they are motivated to pursue action that will lead to drive reduction. Drive theories cannot explain all motivations such as thirst for knowledge. An incentive is an external goal that has the capacity to motivate behaviour. Assert that human motives and those of other species are the products of natural selection. Argue that natural selection favors behaviours that maximize reproductive success, thus they explain motives such as aggression, dominance, achievement etc. Investigators found that when they lesioned the animals" lateral hypothalamus (lh), the animal showed little or no interest in eating, as if their hunger center had been destroyed.