PSYC 2600H Lecture Notes - Lecture 9: Walter Mischel, Impulsivity, Nicotine

• School: Trent University
• Department: Psychology
• Course: PSYC 2600H
• Professor: Ryan Cecchetto

Document Summary

Rarely offered only one source of reinforcement. Individuals typically choose between alternative sources of reinforcement. Simultaneous presentation of two or more independent schedules: each leading to a reinforcer. Example: a pigeon can choose between responding on a red key with a vr 20 schedule and a green key with a vr 50 schedule. Ra - number of responses emitted on schedule a. Rb - number of responses emitted on schedule b. A - number of reinforcers earned on schedule a. B is the number of reinforcers earned on schedule b. Equation example a choice between a vi 30-sec and a vi 60-sec schedule. 119 reinforcers on the vi 30- sec schedule, and. 58 reinforcers (about half as many) on the vi 60-sec schedule. 2,800 responses on the vi 30-sec schedule, and. The proportion of responses emitted on the vi 30-sec schedule is . 66. The proportion of reinforcement obtained on that schedule was . 67).