PSYA02H3 : Ch.13 Notes.doc

• School: UTSC
• Department: Psychology
• Course: PSYA02H3
• Professor: Jordan

Document Summary

Regulatory system: system variable: the variable controlled by a regulatory mechanism; for, set point: optimum value of system variable in a regulatory mechanism. example, temperature in a heating system. Negative feedback: a process whereby the effect produced by an action serves to diminish or terminate that action. Regulatory systems are characterized by negative feedback loops. (i. e. heat production in room feeds back to thermostat and causes it to turn heater off) Drive reduction hypothesis: the hypothesis that a drive (resulting from physiological need or deprivation) produces an unpleasant state that causes an organism to engage in motivated behaviours. Reduction of drive is assumed to be reinforcing. Drive: a condition, often caused by physiological changes or homeostatic disequilibrium, that energizes an organism"s behaviour i. e. hunger. Perseverance: the tendency to continue to perform a behaviour even when it is not being reinforced.