PSYC 2330 Lecture 2: Week 2.pdf

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Week lecture 2: instinct theories, homeostasis & drive, hull(cid:1)s drive theory, incentive motivation, challenges, habituation & sensitization. Behavior refers to a set of responses of organism, usually in relation to environmental stimuli (goals). Genetically programmed behaviors that occurs when circumstances are appropriate and that require no learning. Behaviors adapted to the environment, relatively flexible and open to modifications. They are impulses coming from within the organism that lead to the initiation of behavior (modesty, jealousy, shyness, curiosity). They exist because they have, or had, survival value. They are controlled by genes, and therefore not learned. However, instinctive behaviors differ in terms of degree of sensitivity to changes in the environment. Searching behaviors that are flexible, adapted to the environment, and subject to modification through learning. These behaviors are rigid, insensitive to the environment, highly stereotyped and independent from learning. These behaviors are knows as fixed action patterns. All behaviors need a stimulus and some energy.

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