Operant Conditioning B.F. Skinner began his research with the principle that rewarded behavior is likely to occur again. Operant Conditioning is a form.

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Presentation transcript:

Operant Conditioning B.F. Skinner began his research with the principle that rewarded behavior is likely to occur again. Operant Conditioning is a form of instrumental learning. This is the premise that an organism’s behavior operates or produces an effect on the environment determining whether the behavior is repeated. Skinner developed the Operant chamber, or the Skinner box, to study operant conditioning.

Operant Chamber The operant chamber, or Skinner box, comes with a bar or key that an animal manipulates to obtain a reinforcer like food or water. The bar or key is connected to devices that record the animal’s response.

Shaping Shaping is the operant conditioning procedure in which reinforcers guide behavior towards the desired target behavior through successive approximations. A rat shaped to sniff mines. A manatee shaped to discriminate objects of different shapes, colors and sizes. Khamis Ramadhan/ Panapress/ Getty Images Fred Bavendam/ Peter Arnold, Inc.

Types of Reinforcers Any event that strengthens the behavior it follows. Reuters/ Corbis

1.Immediate Reinforcer: A reinforcer that occurs instantly after a behavior. A rat gets a food pellet for a bar press. 2.Delayed Reinforcer: A reinforcer that is delayed in time for a certain behavior. A paycheck that comes at the end of a week. Immediate & Delayed Reinforcers 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.

Punishment An aversive event that decreases the behavior it follows.

Punishment 1.Results in unwanted fears. 2.Conveys no information to the organism. 3.Justifies pain to others. 4.Causes unwanted behaviors to reappear in its absence. 5.Causes aggression towards the agent. 6.Causes one unwanted behavior to appear in place of another. Although there may be some justification for occasional punishment (Larzelaere & Baumrind, 2002), it usually leads to negative effects.

Cognition & Operant Conditioning Evidence of cognitive processes during operant learning comes from rats during a maze exploration in which they navigate the maze without an obvious reward. Rats seem to develop cognitive maps, or mental representations, of the layout of the maze (environment).

Latent Learning Such cognitive maps are based on latent learning, which becomes apparent when an incentive is given (Tolman & Honzik, 1930).

Motivation Intrinsic Motivation: The desire to perform a behavior for its own sake. Extrinsic Motivation: The desire to perform a behavior due to promised rewards or threats of punishments.

Skinner’s Legacy Skinner argued that behaviors were shaped by external influences instead of inner thoughts and feelings. Critics argued that Skinner dehumanized people by neglecting their free will. However, Skinner did believe in inner thought processes and biological underpinnings Falk/ Photo Researchers, Inc.

Applications of Operant Conditioning Skinner introduced the concept of teaching machines that shape learning in small steps and provide reinforcements for correct rewards. In School LWA-JDL/ Corbis

Applications of Operant Conditioning Reinforcement principles can enhance athletic performance. In Sports

Applications of Operant Conditioning Reinforcers affect productivity. Many companies now allow employees to share profits and participate in company ownership. At work

Applications of Operant Conditioning In children, reinforcing good behavior increases the occurrence of these behaviors. Ignoring unwanted behavior decreases their occurrence.

Learned association examples from class: My daughter’s potty training: the urge to urinate and the sensation of wet pants. (Classical Conditioning) Every time my daughter ask to go the potty, I place her on the toilet and give her a sticker/piece of candy and praise her. She then associates asking to go with the pleasure of receiving a sticker. Putting her on the potty helps her to associate sitting on the toilet with the pleasurable experience of receiving the sticker. (Operant Conditioning, shaping, positive reinforcement, acquisition, Second-Order Conditioning Praise and Sticker)