The Behavioural Approach and SLT (Approaches) Flashcards
Method (Watson and Rayner 1920 ‘Little Albert’)
An 11-month-old boy showed no fear when presented with white, fluffy animals such as rats or rabbits.
Researchers created a conditioned response to these by striking a metal bar loudly behind Albert’s head when presented with these animals.
This was repeated twice at first, then five more times a week later.
Results (Watson and Rayner 1920 ‘Little Albert’)
When he was shown a rat, he would start to cry. This was the same with other white, fluffy objects.
Conclusion (Watson and Rayner 1920 ‘Little Albert’)
A fear response to white fluffy objects had been conditioned into Albert, showing that abnormal behaviour can be learned.
Evaluation (Watson and Rayner 1920 ‘Little Albert’)
Very unethical
Not everybody develops a fear or phobia after a negative situation, so learning theory can’t be the full story.
Being a laboratory study it lacked ecological validity
Supports Pavlov’s idea of classical conditioning
Assumptions of the Behavioural Approach
Psychology is a science: so behaviour must be measured in highly controlled environments to establish cause and effect.
When born our mind is a blank state
There is little difference between the learning that takes place in humans and in other animals: this means that research can be carried out on animals as well as humans
Behaviour is the result of stimulus: all behaviour can be reduced to a simple stimulus- response associations
All behaviour is learnt from the environment: We learn new behaviour through classical or operant conditioning
Key concepts of the Behavioural Approach
Stimulus: anything internal or external, that brings about a response.
Response: any reaction in the presence of a stimulus.
Reinforcement: the process by which a response is strengthened
Unconditioned Stimulus
the stimulus that causes the reflex response before conditioning. it is the stimulus that naturally produces the response
Conditioned Stimulus
the stimulus which, after repeated pairings with the unconditioned stimulus, produces the response
Unconditioned response
the innate (reflexive) response to a stimulus that has not been controlled
Conditioned response
the response that occurs after exposure to the conditioned stimulus
Pavlov’s classical conditioning (Pavlov’s dogs)
First, Pavlov established that meat caused the dog to salivate
-unconditioned stimulus (FOOD) = unconditioned response (SALIVA)
Then, he presented the tone with the food. Note that the dog is salivating in response to the food at this time
-unconditioned stimulus (FOOD) + neutral stimulus (BELL) = unconditioned response (SALIVA)
After several pairings of the tome and food, Pavlov found that the dog would salivate to the tone when it was presented alone
-conditioned stimulus (BELL) = conditioned response (SALIVA)
Method (Skinner 1938 rats showing operant conditioning)
Rats were placed one at a time into a ‘Skinner Box’ which contained a variety of stimuli: a speaker, lights, a floor which gave an electric shock and a food dispenser which was operated with a lever.
A hungry rat was placed into the box and the time taken for the rates to learn that pressing the lever would release food was recorded.
Results (Skinner 1938 rats showing operant conditioning)
Initially, the rat would run around the cage until it accidentally pressed the lever and it was rewarded with food.
The more the rat was put back into the box, the quicker they got at learning where the lever was.
Conclusion (Skinner 1938 rats showing operant conditioning)
Rats can learn behaviour through operant conditioning. A behaviour such as pressing a lever can be positively reinforced by receiving food.
Evaluation (Skinner 1938 rats showing operant conditioning)
Has influenced promoting the idea of behavioural psychology
It used animals, meaning that results may not be generalised to humans.
The sample size was small, reducing reliability of the results.
Skinner and negative reinforcement
He repeated his study and showed that rats could learn to prevent an electric shock by pressing a lever when a light came on
Positive Reinforcement
Increases the likelihood of a response occurring because it involves a reward for the behaviour
Negative Reinforcement
Increases the likelihood of a response occurring because it involves the removal of, or escaping from, unpleasant consequences
Punishment
The consequence is receiving something unpleasant which decreases the probability of a behaviour being repeated.
Operant conditioning
Uses rewards and punishment to modify behaviour.
The associations between responses and consequences have to be made close together in time for learning to occur.
Operant conditioning has been applied to the treatment of behaviour.
Examples included social skills training for offenders, and token economy systems used in institutions whereby tokens are given as secondary reinforcement for good behaviour.
Social Learning Theory
A way of explaining behaviour that includes both direct and indirect reinforcements, combining learning theory with the role of cognitive factors. Learning can occur simply through observing others- others known as models- in our environment
Albert Bandura (1961)
Learning occurs from observing others. The mind, behaviour and the environment all play a role in learning behaviour. This deals with the major criticism of Behaviourist approach, which ignores mental processes, by taking account of cognitive processes.
Vicarious reinforcement
we learn through modelling- modelling involves learning through the observation of other people (models), which may lead to imitation (repetition) of the behaviour, only if behaviour is rewarded.
The four conditions for social learning
-Attention: the extent to which we notice certain behaviours
-Retention: The individual remembers what they have observed
-Motor Reproduction: The individual replicates the behaviour shown by the model/judges their ability to replicate it
-Motivation: The individual seeks to demonstrate the behaviour that they have observed/evaluating the outcome of imitating it