The Learning -behaviourism- Approach Flashcards
Focus on observable behaviour
All behaviour is learnt through experience.
External forces shape our behaviour.
Use of non-human animals
Behaviourists suggest the processes that govern learning are the same in all species.
So animals can replace humans as experimental subjects.
Classical conditioning
Ivan Pavlov 1927
Neutral stimulus (bell) = no response (no salivation) UCS (food) = UCR (salivation)
UCS (food) + NS (bell) = UCR (salivation)
CS (bell) = CR (salivation)
Important features of classical conditioning
Timing
Extinction
Spontaneous recovery
Stimulus generalisation
Timing
If the neutral stimulus cannot be used to predict the UCS (used after the UCS/too long time interval) = no conditioning.
Extinction
The CR does not become permanently established as the response. After some presentations of the CS (bell) without the UCS (food) it doesn’t reproduce the CR.
The association is forgotten.
Spontaneous recovery
If the association is forgotten when the CS and UCS are paired together again later on, the link between them is made much more quickly.
Stimulus generalisation
Pavlov discovered that once an animal has been conditioned they will also respond to similar stimuli that are similar to the CS.
Classical conditioning evaluation
+ real world applications -therapies
+ scientific credibility
- mechanistic view of behaviour
Operant conditioning
Skinner: the consequence of a behaviour may be positive or negative and whether or not an organism repeats that behaviour depends on the nature of these consequences.
Operant conditioning
Positive reinforcement: action + reward
Negative reinforcement: unpleasant action (electric shock) + avoid behaviour that caused bad action
Punishment: action + consequence
Operant conditioning evaluation
\+ real world application, token economies \+ scientific credibility \+ use of experimental methods - ignores other explanations - reliance on non-human animals
Evaluation of behaviourist approach
+ Application to treatment of phobias (classical conditioning= systematic desensitisation)
+ operant conditioning use of controlled scientific measures (Skinner determined causal relationship between positive and negative reinforcement and the likelihood of future behaviour)
- reliance on non-human animals