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Module_24_Student - Module24:operant conditioning...

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Click to edit Master subtitle style  2/4/11 Module 24:  operant  conditioning September 23rd, 2010
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 2/4/11 What is operant conditioning? Behavior is  strengthened if followed  by a reinforcer or  diminished if followed  by a punisher Operates on the  environment to produce  rewarding or punishing  stimuli
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 2/4/11 Topics for today’s class Skinner’s Experiments Extending Skinner’s Understanding Skinner’s Legacy Contrasting Classical Conditioning and 
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 2/4/11 Skinner’s experiments
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 2/4/11 b.f. skinner English major Aspiring writer Went to graduate school for psychology Modern behaviorism’s most influential and  most controversial figure
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 2/4/11 Law of effect Skinner built on this  idea first proposed by  Thorndike Behaviors followed by  favorable  consequences become  more likely, and that  behaviors followed by  unfavorable 
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 2/4/11 Operant chamber Using the law of effect  Skinner developed  principles of behavioral  control Also referred to as the  Skinner box Pull habits out of  animals to foster 
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 2/4/11 shaping Reinforcers guide  behavior toward  closer and closer  approximations of  the desired behavior successive  approximations must  receive reward Reinforcement of  children’s whining
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 2/4/11 Types of reinforcers Any event that  strengthens/increases  the frequency of a  response Positive reinforcement Negative reinforcement Primary  and Conditioned  reinforcers Immediate and delayed  reinforcers
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 2/4/11 Positive reinforcement Increasing behaviors  by presenting  positive stimuli After presentation,  response is  strengthened Examples Food Getting a hug
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 2/4/11 Negative reinforcement Increasing behavior  by stopping or  reducing negative  stimuli Any stimulus that,  when removed after  a response,  strengthens behavior NOT punishment!
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 2/4/11 Primary reinforcers unlearned Innately satisfying Usually satisfies a biological need Example: Food
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