Learning Flashcards
What is conditioning
The learning of associations or through concequences
Learning by association
A reflex response to a stimulus is transferred to another stimulus to which there is no natural response, by repeatedly presenting the two stimuli together
Classical conditioning-before training
UCS (something which produces a response)-UCR (a reflex behaviour)
NS-No response
Classical conditioning-during training
UCS+NS (continually paired)-UCR
Classical conditioning-after training
CS(NS now produces same response as UCS so NS is now the conditioned stimulus)-CR
Extinction
When a CS is experienced without UCS over a period of time the CR is extinguished
Spontaneous recovery
When extinct responses reappear even without the new pairings to the UCS
Generalisation
When we find ourselves exhibiting responses to other similar stimuli to the one stimulus we have been conditioned to
How can classical conditioning explain our tastes
Associations can explain why we like/dislike anything from food to music
What is the difference between stage theories and learning theories
Behaviour can be aquired at any time and last a lifetime whereas stage theories say that development happens in steps over time
How is classical conditioning reductionist
Explains only behaviour through association
How is classical conditioning a good science
-Falsifiable(produces testable hypotheses and can be proved wrong)
-Focuses on ovservable measureable behaviours
-Controlled studies leading to valid and reliable results
Strengths of classical conditioning (with eg)
Ivan Pavlov demonstrated classical conditioning through salivation in dogs- there is firm evidence in supporting existence of classical conditioning.
Weaknesses of classical conditioning (with eg)
-Some of Pavlovs details are open to question (he believed contiguity was essential in pairing NS and UCS
-Can only explain how a limited range of behaviours can be aquired (only reflex responses not complex chains of learned behaviour only a partial explanation)
Evaluation of John Watson and Rosalie Rayner
-Demonstrated that a fear response could be conditioned in a human baby
-Firm evidence supporting classical conditioning in humans
-proved contiguity is more important than contingency
Contingency
Extent to which the NS reliably predicts the UCS
Examples of how classical conditioning has therapeutic applications
Systematic desensitisation, flooding, aversion therapy (removing an unwanted behaviour eg. sexual arousal to young children paired with electric shock)
What should a science be
Replicable, reliable, valid, reductionist, falsifiable, empiricism, testable, hypothesis controlled
Pavlovs aim
To explore how salivation can become associated with new stimuli and the conditioned reflexes in the eating behaviour of dogs
Procedure
-Dogs immobilised in soundproof chamber
-Baseline salivation measured when presented with NS
-Conditioned dogs to salivate with CS, amount of saliva produced with CS elicited measured
-Compared this to baseline measure
Pavlov diagram before training
UCS (food) - UCR (salivation)
Pavlov diagram during training
NS (Bell) - no response
NS (Bell) + UCS (Food) - UCR (salivation)
Pavlov diagram after training
CS (Bell)-CR (salivation)
Variations of Pavlov
-Types of NS
-NS presented
-Measuring extinction and spontaneous recovery
Pavlov findings
-Forward pairings of NS and UCS elicited began salivation up to 9 seconds after CS presented
-No salivation with backward conditioning
-Extinction occurred after repeated presentation of CS without UCS- occasional spontaneous recovery
Pavlov conclusion
Dogs can be classically conditioned to salivate at the sound of a bell/buzzer/metronome
How do Pavlov’s findings have survival value
They are prepared to eat when the food is ready
Good experimental control
Soundproof chamber- reduces external sounds which could act as extra stimuli- findings more valid