PSY 113 Lecture Notes - Lecture 13: Slot Machine, Spinach, Learned Helplessness
Document Summary
Reinforcement increases future responding and punishment decreases future responding. S - r - s (aversive stimulus removed!!) Negative reinforcement ex/ certain commercial increases volume so person would press mute on remote. Further on, person will continue to press mute to get rid of unpleasant stimulus. So far, we"ve talked about crf schedules. Fr-fixed ratio (ex/ rat gets food every third button pressed ) Ratio schedules - reinforcement is contingent upon number of responses. Interval schedules - reinforcement is contingent upon the passage of time. Fr: only get paid every 5 times after mowing. Fi: getting paid bi-weekly at a normal job. Vr: slot machine giving people money or not. Behavior that has been reinforced according to a partial schedule of reinforcement is more resistant to extinction. It"s easier to detect that reinforcement is no longer available, after reinforcement of a crf (continuous reinforcement) schedule.
