the learning approach: Behaviourism Flashcards
What are the assumptions in the behaviourists
- The behaviourist approach is only interested in studying behaviour that can be observed an measured
- It is not concerned with the investigation of mental processes of the mind e.g. like the psychodynamic approach.
Early behaviourists rejected the introspection as it invaded too many concepts that were difficult to measure - As a result, behaviourists tried to maintain more control and objectivity with their research and relied on lab experiments as the best way achieve this
Following Darwin, behaviourists suggested that the basic processes that govern learning are the same in all species - Behaviourists identified two important forms of learning:
- classical conditioning
- operant conditioning
who first demonstrated classical conditioning and what is it
classical conditioning is learned through association and was first demonstrated by Ivan Pavlov
what did Pavolov “study” reveal
Pavlov revealed that dogs could be conditioned to salivate at the sound of a bell if the sound was repeatedly presented at the same time as they were given food
Pavlov’s dog gradually learned to associate the sound of the bell (stimulus) with the food (another stimulus) and would produce the salivation response every time they heard the bell
Pavlov showed how a neutral stimulus ( in this case a bell), can come to elicit a new learned response (conditioned response) through association - essentially the neutral stimulus becomes a conditioned stimulus producing a conditioned response
what equation can be applied to any situation with classical conditioning
unconditioned stimulus - unconditioned response
(food) (salivation)
unconditioned stimulus + neutral stimulus - unconditioned response
(bell)
conditioned stimulus (bell) - conditioned response (salivation)
what is operant conditioning - Skinner’s research
BF Skinner (1953) suggested that learning is an active process whereby humans and animals operate on their environment
This is operant conditioning - learning by consequence
in operant conditioning there are three types of consequences of behaviour - what are they
positive reinforcement
negative reinforcement
punishment
what is negative reinforcement
negative reinforcement occurs when an animal (or human) avoids something unpleasant.
When a student hand in an essay so as not to be told off, the avoidance of something unpleasant is the negative reinforcement
Similarly, a rat may learn through negative reinforcement that pressing a lever lads to avoidance of an electric shock ( the skinner box)
what is positive reinforcement
positive reinforcement is receiving a reward when a certain behaviour is performed; e.g. praise from a teacher for answering a question correctly in class
what is punishment
punishment is an unpleasant consequence of behaviour, for example being shouted at by the teacher for talking during a lesson
what increases the likelihood of a behaviour being repeated
positive and negative reinforcement
what decreases the likelihood of a behavior being repeated
punishment
what is the skinner box
(A) Skinner conducted experiments with rats and sometimes pigeons, in specially designed cages called Skinner Boxes
-Every time the rat activated a level (or pecked a disc in the case of the pigeons)
Within the box it was rewarded with a food pellet.
From then on the animal would continue to perform the behaviour
(B) Skinner also showed how rats and pigeons could bee conditioned to perform the same behaviour to avoid an unpleasant stimulus e.g. an electric shock in this case