PSYC 2230 Lecture 4: Lecture 4

• School: York University
• Department: Psychology
• Course: PSYC 2230
• Professor: Pauline Charlton

Document Summary

Is any condition within the person that is essential and necessary for life, growth and well being. When needs are nurtured and satisfied, well being is maintained and enhanced. If neglected or frustrated, the need"s thwarting will produce damage that disrupts biological or psychological well being: motivational states therefore provide the impetus to act before damage occurs to psychological and bodily well being. Physiological needs: inherent within the workings of biological systems. Thirst: is the consciously experienced motivational state that readies the person to perform behaviours necessary to replenish water deficit. Hunger: hunger and eating involve a complex regulatory system of both short term (glucostatic hypothesis) and long term (liopstatic hypothesis, including set point theory) regulation. Sex: sexual motivation rises and falls in response to a host of factors, including hormones, external stimulation, external cues (facial metrics), cognitive scripts, sexual schemas, and evolutionary processes. Processes: physiological regulation, thirst activation, thirst satiety, hypothalamus nd liver, environmental influences.