PSYB45H3 Lecture Notes - Lecture 4: Reinforcement, Stimulus Control, Classical Conditioning
Document Summary
Week 4 may 25 th , 2015. Results in fast learning and fast extinction. Extinction is the complete opposite of continuous reinforcement: intermittent reinforcement: Free-operant procedure: no constraints on the individual"s responses, free to respond repeatedly: e. g. , when studying and reading with nowhere to go, you can do the behavior as much as you want. Can only do it once per night, so individual must wait 3 days. Types of intermittent schedules for increasing and maintaining behavior: ratio, simple interval, schedules with limited hold, duration. Ratio schedule: based on the number of responses (target behavior) emitted: fixed-ratio (fr) schedule: reinforcement occurs each time a fixed number of responses emitted. E. g. , read 10 pages of textbook before taking a break. High steady rate of responding until reinforcement followed by a postreinforcement pause. High resistance to extinction: ratio strain: deterioration of responding from increasing a fixed-ratio schedule too rapidly.
