Learning Notes 8-4 (obj.13-15)

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Presentation transcript:

Learning Notes 8-4 (obj.13-15)

1.) Types of Reinforcers a.) Any event that strengthens the behavior it follows. A heat lamp positively reinforces a meerkat’s behavior in the cold. OBJECTIVE 13| Compare positive and negative reinforcement, and give one example each of a primary reinforcer, a conditioned, an immediate, and a delayed reinforcer. Reuters/ Corbis

2.) Primary & Secondary Reinforcers a.) Primary Reinforcer: An innately reinforcing stimulus like food or drink. b.) Conditioned Reinforcer: A learned reinforcer that gets its reinforcing power through association with the primary reinforcer.

3.) Immediate & Delayed Reinforcers a.) Immediate Reinforcer: A reinforcer that occurs instantly after a behavior. A rat gets a food pellet for a bar press. b.) Delayed Reinforcer: A reinforcer that is delayed in time for a certain behavior. A paycheck that comes at the end of a week. *****We may be inclined to engage in small immediate reinforcers (watching TV) rather than large delayed reinforcers (getting an A in a course) which require consistent study.

4.) Reinforcement Schedules a.) Continuous Reinforcement: Reinforces the desired response each time it occurs. b.) Partial Reinforcement: Reinforces a response only part of the time. Though this results in slower acquisition in the beginning, it shows greater resistance to extinction later on. OBJECTIVE 14| Discuss the strengths and weaknesses of continuous and partial reinforcement schedules, and identify four schedules of partial reinforcements.

5.) Ratio Schedules a.) Fixed-ratio schedule: Reinforces a response only after a specified number of responses. e.g., piecework pay. b.) Variable-ratio schedule: Reinforces a response after an unpredictable number of responses. This is hard to extinguish because of the unpredictability. (e.g., behaviors like gambling, fishing.)

6.) Interval Schedules a.) Fixed-interval schedule: Reinforces a response only after a specified time has elapsed. (e.g., preparing for an exam only when the exam draws close.) b.) Variable-interval schedule: Reinforces a response at unpredictable time intervals, which produces slow, steady responses. (e.g., pop quiz.)

*****Schedules of Reinforcement

a.) An aversive event that decreases the behavior it follows. 7.) Punishment a.) An aversive event that decreases the behavior it follows. OBJECTIVE 15| Discuss the ways negative punishment, positive punishment, and negative reinforcement differ, and list some drawbacks of punishment as a behavior-control technique.

****Punishment Although there may be some justification for occasional punishment (Larzelaere & Baumrind, 2002), it usually leads to negative effects. Results in unwanted fears. Conveys no information to the organism. Justifies pain to others. Causes unwanted behaviors to reappear in its absence. Causes aggression towards the agent. Causes one unwanted behavior to appear in place of another.