cognitive level of analysis
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Cognitive Level of Analysis. CLA. Studies cognition All mental processes involved in attention, perception, memory decision making, problem solving and language. All the crap that goes on in your mind!!!. What is the Mind?. They tend to look at the mind and an information-processing unit. - PowerPoint PPT PresentationTRANSCRIPT
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Cognitive Level of Analysis
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CLA
Studies cognition• All mental processes
involved in attention, perception, memory decision making, problem solving and language.
• All the crap that goes on in your mind!!!
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What is the Mind?
• They tend to look at the mind and an information-processing unit.
Like a computer• The brain is the
hardware.• The mind is the
software.
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The CLA is popular…• About 70% of all
therapists today draw from the cognitive school.
• I am going to make the argument that you are all cognitive therapists!!!
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But it was not always so popular…• A movement started in the
early 1900s that stressed that the “mind” and “thinking” was not something you can measure.
• They believed that you must be able to measure something for it to be considered a “real” science.
• They became known as….
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Behaviorists• They thought since you
could observe and record behaviors (not feelings and thoughts in the mind), then that was all that really mattered.
• They focused on altering behaviors (to heck with feelings)
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Classical Conditioning
• Ivan Pavlov• Studied Digestion of
Dogs.• Dogs would salivate
before they were given food (triggered by sounds, lights etc…)
• Dogs must have LEARNED to salivate.
Click above to see about Pavlov
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Classical Conditioning• This is passive learning
(automatic…learner does NOT have to think).
• First thing you need is a unconditional relationship.
• Unconditional Stimulus (UCS)- something that elicits a natural, reflexive response.
• Unconditional Response (UCR)- response to the UCS.
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Classical Conditioning• Next you find a neutral stimulus
(something that by itself elicits no response).
• You present the stimulus with the UCS a whole bunch of times.
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Classical Conditioning• After a while, the
body begins to link together the neutral stimulus with the UCS.
• Acquisition
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Classical Conditioning• We know learning takes
places when the previously neutral stimulus elicits a response.
• At this point the neutral stimulus is called the conditioned stimulus (CS) and the unconditional response becomes the conditioned response (CR).
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Classical Conditioning• TRICKY FACT: We know
learning exists because the CS is linked to the UCS.
• This is called ACQUISITION.
• Acquisition does not last forever.
• The moment the CS is no longer associated with the UCS, we have EXTINCTION.
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Spontaneous Recovery• Sometimes, after
extinction, the CR still randomly appears after the CS is presented.
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Generalization and DiscriminationGeneralization
• Something is so similar to the CS that you get a CR.
Discrimination• Something so different
to the CS so you do not get a CR.
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Popular Classical Conditioning Examples
A modified version of Clockwork Orange scene. Warning…it is still graphic!!!
Classical Conditioning as portrayed in The Office.
See if you can identify the UCS, UCR, CS and CR.
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Classical Conditioning and Humans• John Watson brought Classical Conditioning to
psychology with his Baby Albert experiment.
Click to see Baby Albert to some nice jazz.
This type of Classical Conditioning is also known as Aversive Conditioning.
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Learned Taste Aversions• When it comes to
food being paired with sickness, the conditioning is incredible strong.
• Even when food and sickness are hours apart.
• Food must be salient (noticeable.)
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Garcia and Koelling Study• Studied rats and
how they make associations.
• Some associations seem to be adaptive.
CS UCS Learned ResponseLoud Noise Shock Fear
Loud Noise Radiation (nausea) Nothing
Sweet Water Shock Nothing
Sweet Water Radiation (nausea) Avoid Water
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Operant Conditioning
The Learner is NOT passive.Learning based on consequence!!!
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The Law of Effect• Edward Thorndike• Locked cats in a cage• Behavior changes because
of its consequences.• Rewards strengthen
behavior.• If consequences are
unpleasant, the Stimulus-Reward connection will weaken.
• Called the whole process instrumental learning.
Click picture to see a better explanation of the Law of Effect.
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B.F. Skinner• The Mac Daddy of
Operant Conditioning.
• Nurture guy through and through.
• Used a Skinner Box (Operant Conditioning Chamber) to prove his concepts.
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Skinner Box
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Reinforces• A reinforcer is anything
the INCREASES a behavior.Positive Reinforcement:• The addition of something
pleasant.Negative Reinforcement:• The removal of something
unpleasant.• Two types of NR• Escape Learning• Avoidance Learning(Getting kicked out of class
versus cutting class)
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Positive or Negative?
Putting your seatbelt on. Studying for a test.Having a headache and taking an aspirin.
Faking sick to avoid AP Psych class.
Breaking out of jail.
Getting a kiss for doing the dishes.
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PunishmentMeant to decrease a
behavior.Positive Punishment• Addition of something
unpleasant.Negative Punishment
(Omission Training)• Removal of something
pleasant.Punishment works best
when it is immediately done after behavior and if it is harsh!
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How do we actually use Operant Conditioning?
Do we wait for the subject to deliver the desired behavior?
Sometimes, we use a process called shaping.
Shaping is reinforcing small steps on the way to the desired behavior.
To train a dog to get your slippers, you would have to reinforce him in small steps. First, to find the slippers. Then to put them in his mouth. Then to bring them to you and so on…this is shaping behavior.
To get Barry to become a better student, you need to do more than give him a massage when he gets good grades. You have to give him massages when he studies for ten minutes, or for when he completes his homework. Small steps to get to the desired behavior.
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Chaining Behaviors• Subjects are taught
a number of responses successively in order to get a reward.
Click picture to see a rat chaining behaviors.
Click to see a cool example of chaining behaviors.
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Same Terminology as Classical Conditioning
• Acquisition• Extinction• Spontaneous
Recovery• Generalization• Discrimination
If I wanted to reinforce my son’s dancing by giving him lollipops when he dances. Identify the following….
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Primary v. Secondary ReinforcersPrimary Reinforcer
• Things that are in themselves rewarding.
Secondary Reinforcer
• Things we have learned to value.
• Money is a special secondary reinforcer called a generalized reinforcer (because it can be traded for just about anything)
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Token Economy
• Every time a desired behavior is performed, a token is given.
• They can trade tokens in for a variety of prizes (reinforcers)
• Used in homes, prisons, mental institutions and schools.
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Premack Principle
• You have to take into consideration the reinforcers used.
• Is the reinforcer wanted….or at least is it more preferable than the targeted behavior.
Pat’s Hubbas might be a great positive reinforcer for me, but it would not work well on a vegetarian.
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Reinforcement SchedulesHow often to you
give the reinforcer?• Every time or just
sometimes you see the behavior.
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Continuous v. Partial ReinforcementContinuous
• Reinforce the behavior EVERYTIME the behavior is exhibited.
• Usually done when the subject is first learning to make the association.
• Acquisition comes really fast.
• But so does extinction.
Partial• Reinforce the behavior
only SOME of the times it is exhibited.
• Acquisition comes more slowly.
• But is more resistant to extinction.
• FOUR types of Partial Reinforcement schedules.
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Ratio SchedulesFixed Ratio
• Provides a reinforcement after a SET number of responses.
Variable Ratio• Provides a
reinforcement after a RANDOM number of responses.
• Very hard to get acquisition but also very resistant to extinction.
Fixed Ration- She gets a manicure for every 5 pounds she loses.
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Interval SchedulesFixed Interval
• Requires a SET amount of time to elapse before giving the reinforcement.
Variable Interval• Requires a RANDOM
amount of time to elapse before giving the reinforcement.
• Very hard to get acquisition but also very resistant to extinction.
Fixed Interval: She gets a manicure for every 7 days she stays on her diet.
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Observational Learning• Albert Bandura and his
BoBo Doll• We learn through
modeling behavior from others.
• Observational learning + Operant Conditioning = Social Learning Theory
Click pic to see some observational learning.