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Published byMalcolm Blake Modified over 9 years ago
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Learning
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What is Learning? a relatively permanent change in an organism’s behavior due to experience
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Behaviorism The psychological domain that argues that psychology should be an objective science
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Pavlov Russian scientist that studied the affect of salivation on digestion Problem: Dogs would start salivating before they got food. Solution: Forget the digestion, let’s study learning!
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Learning Pavlov noticed the dogs salivated naturally when they ate. He paired bringing food with ringing a tone. After a while he rang the tone, but didn’t bring food. What did the dogs do?
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Classical Conditioning A form of learning where an organism learns to associate stimuli
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4 Parts of Classical Conditioning Unconditioned Stimuli (UCS)- something that causes a natural response Unconditioned Response (UCR)- what happens naturally as a result of the UCS Conditioned Stimuli (CS)- a previously neutral stimuli that, after learning, produces the natural response Conditioned Response (CR)- same as UCR, but in response to the CS
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4 Parts of Pavlov UCS- UCR- CS- CR-
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4 Parts of Pavlov UCS- Food UCR- Salivation CS- Tone CR- Salivation
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Other examples? Flinching when seeing lightning Shocking animals after a tone Fear of drawing/tests
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Parts of Learning
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Acquisition- gaining learning Extinction- when the CS is no longer paired with the UCS, learning is lost Spontaneous recovery- after extinction, if one waits awhile, learning can come back
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Generalization Conditioned responses occurring for similar stimuli (even ones that aren’t conditioned) Example: Children fearing cars and learn to avoid motorcycles and trucks as well
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Discrimination The ability to tell the difference between stimuli Example: Being afraid of pit bulls but not beagles
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Examples of Classical Conditioning http://www.youtube.com/watch?v=9hBfnXACs OI (John Watson, Little Albert) http://www.youtube.com/watch?v=9hBfnXACs OI http://teachertube.com/viewVideo.php?title=T he_Office_Conditioning&video_id=247611 (The Office) http://teachertube.com/viewVideo.php?title=T he_Office_Conditioning&video_id=247611
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Aversive Conditioning Using classical conditioning to keep animals (people) away from harmful substances Developed by Garcia after studying taste aversions in rats What things won’t you eat any more?
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Applications of Classical Conditioning Teaching people new things Psych Therapy Aversive Conditioning
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Operant Conditioning A type of learning that teaches using reinforcement and punishment
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B.F. Skinner English major who decided to study psychology as a graduate student Focused on Thorndike’s law of effect: rewarded behaviors will likely be continued Taught animals tricks
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Principles of Operant Conditioning Reinforcement- Something that causes a behavior to increase Positive- good behavior results in a reward Negative- good behavior results in taking away something bad Punishment- Something that causes a behavior to decrease
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Shaping When behavior is trained through closer and closer approximations
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Types of Reinforcement Primary- innately satisfying (meets a need) Food Secondary- paired with primary to become satisfying Money Immediate- happens right now Get a treat for answering a question Delayed- reward comes in the future Graduating high school
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Reinforcement Schedules Fixed-ratio- behavior is reinforced after a specific number of responses You can take a break from homework after completing 2 assignments Variable-ratio- behavior is reinforced after an unpredictable amount of responses Traveling salesperson Fixed-interval- behavior is reinforced for the first desired response after a specific time Baking time on a cake Variable-interval- behavior is reinforced for the first desired response after a variable time length Getting e-mail
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Punishment Reduces behavior Why? Applying something undesirable Taking away something desirable
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Motivation Extrinsic- Outside of you Rewards and punishments Intrinsic- Inside of you Event is valuable for its own sake
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Legacies of BF Skinner Computers at school Rewards at school/work Child-rearing
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Cognition in learning Sometimes we learn without being conditioned Known as latent learning
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Observational Learning We learn things from watching others Monkey see, monkey do
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Albert Bandura Bobo Doll experiment Children watched a video of an adult beating up a Bobo doll Children beat up the Bobo doll http://www.youtube. com/watch?v=eqNaLe rMNOE http://www.youtube. com/watch?v=eqNaLe rMNOE
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Biological Basis? Mirror Neurons- fire when perform an action or see someone else doing it Provides the foundation for observational learning
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