CAS PS 101 Lecture 10: February 26

• School: Boston University
• Department: Psychological & Brain Sciences
• Course: CAS PS 101
• Professor: Martha Tompson

Document Summary

Operant conditioning: terms : reinforcement: increases likelihood of behavior. Negative: removal of a punishing stimulus: punishment: decreases likelihood of behavior. By application: addition of a punishing stimulus. By removal: removal of a reinforcing stimulus: discriminative stimulus: indicates response should lead to reinforcement, shaping: reinforcing successive approximations toward goal behavior, extinction: response disappears gradually when no longer enforced, partial reinforcement schedule: Fixed ratio: reinforcement based on the number of predetermined occurrences of behavior: behavior increases at a rapid rate, example: a pizza company o ers to free slices of pizza for every 10 pies ordered. Variable ratio: reinforcement is random in relation to occurrences of the behavior: gambler"s reinforcement schedule , behavior tends not to extinguish, example: on average, every 20 coins the slot machine will pull a win. However, it is not always every 20 coins, but eventually. However, pushing the button before the hour is up will not result in the release of her medicine.