Approaches - The Behaviourist Approach Flashcards
Behaviourist
People who believe that human behaviour can be explained in terms of conditioning, without the need to consider thoughts or feelings.
What does the Behaviourist approach reject and what do they instead focus on?
The vagueness of introspection, focusing instead on observable events (i.e. stimuli and responses, and the conditions under which learning would be most likely to occur - so often called learning theory).
Classical Conditioning
When a neutral stimulus is consistently paired with an unconditioned stimulus so that it eventually takes on the properties of the stimulus and it able to produce a conditioned response.
Who undertook research on classical conditioning?
Ivan Pavlov
UCS
Unconditioned stimulus
UCR
Unconditioned response
NS
Neutral stimulus
CS
Conditioned Stimulus
CR
Conditioned Response
Before Conditioning
Unconditioned Stimulus (e.g. food) = Unconditioned Response (e.g. salivation) Neutral Stimulus (e.g. bell) = No response (e.g. no salivation)
During conditioning
Unconditioned Stimulus (e.g. food) + Neutral Stimulus (e.g. bell) = Unconditioned Response (e.g. salivation)
After Conditioning
Neutral Stimulus has become Conditioned Stimulus. Conditioned Stimulus (e.g. bell) = Conditioned Response (e.g. salivation)
Other important features to Classical Conditioning
Timing, extinction, spontaneous recovery and stimulus generalisation.
Timing - classical conditioning
If the NS cannot be used to predict the UCS (e.g. if it occurs after the UCS or the time interval between the two is too great), then conditioning does not take place.
Extinction - classical conditioning
Pavlov discovered that, unlike the UCR, the CR does not become permanently established as a response. After a few presentations of the CS in the absence of the UCS, it loses its ability to produce the CR.
Spontaneous Recovery - classical conditioning
Following extinction, if the CS and UCS are then paired together again, the link between them is made much more quickly.
Stimulus generalisation - classical conditioning
Pavlov discovered that one an animal has been conditioned, they will also respond to other stimuli that are similar to the CS.
Operant Conditioning
Learning through reinforcement or punishment. If a behaviour is followed by a desirable consequence then that behaviour is more likely to occur again i the future.
Who conducted research into Operant Conditioning?
Skinner
What is basic theory behind Operant Conditioning?
Idea that organisms spontaneously produce different behaviours, and these behaviours produce consequences for that organism, some of which may be positive (i.e. desirable) and some negative (i.e. undesirable). Whether or not organism repeats a particular behaviour depends on the nature of these consequences (i.e. it is reinforced).
What special cage did Skinner create and what is its purpose?
The Skinner Box. To investigate operant conditioning in rats.
How does the Skinner box work?
The rat moves around the cage, and when it accidentally presses a lever, a food pellet (the reinforcer) falls into the cage. Soon hungry rat begins pressing lever to obtain food. If food pellets stop, rat presses lever a few more times and then abandons (extinction).
Reinforcement Operant Conditioning Definition
A term in psychology to refer to anything that strengthens a response and increases the likelihood that it will occur again in the future.
Types of reinforcement
Positive reinforcement and negative reinforcement.