Behavioural Flashcards
Who was behaviourism developed by???
JB Watson in 1915
other important contributors……..
- Ivan Pavlov (classical conditioning )
- B.F skinner (operant conditioning)
What are the assumptions of the behaviourist approach?
- behaviourism is primarily concerned with observable behaviours
- psychology is a science
- when born our mind is a blank slate
- learning in humans and animals in near identical
- behaviour is always the result of stimuli
- behaviour is all environmental (** nurture **)
What is a stimulus??
Anything internal or external that brings about a response
What is a response ???
Any reaction in the presence of a stimulus
What is reinforcement ???
The process by which a response is strengthened
Classical conditioning (Pavlov)
- first person to ever test process of learning on animals
Learning by association :
- conditioning of reflexes
- association of the reflex with the stimulus via repetition
Before conditioning:
- establishing the reflex
E.g food (unconditioned stimulus) causes the dog to salivate (unconditioned response)
During conditioning:
- then presented with a stimulus
E.g food (unconditioned stimulus) + bell (neutral stimulus) = salivation (unconditioned response)
After conditioning:
- after several iterations of the former the association is made (unconsciously)
E.g Bell (conditioned stimulus) = salivation (**conditioned response **)
Operant conditioning (skinner)
- claimed that all behaviour is the result of consequences in our environment
- learning through positive and negative consequences
E.g Skinner box - one rat in a box in which a different stimuli is contained (speaker, lights, electric shock floor, food dispenser) -> the reward of the food triggers similar behaviour
Reinforcement and punishment
Positive - something is given
Negative- something is taken away
Reinforcement - increases the probability of similar behaviour
Punishment - decreases the probability of similar behaviour
Positive reinforcement = reward e.g sweets
negative reinforcement = relief e.g baby stops crying when you pick it up
positive punishment = punishment e.g getting shouted at
negative reinforcement = penalty e.g having a phone taken away
Strengths of the behaviourist approach:
- behaviourism is highly scientific (replicable- high level of control in a lab setting + mainly quantitative data)
- influences all areas of psychology
- they appeal to the real world and its issues (e.g phobias)
- strong arguments in nature/nurture debate
Limitations of behavioural approach:
- learning is not satisfactorily explained via classical and operant conditioning
- ignores mental processes
- reductionist (only takes nurture into account)
- Deterministic (ignores free will)
- lacks ecological validity (issues with generalisation - highly controlled settings)
- ethical issues
- lacks qualitative data
- most evidence is based on animal testing Animals =! Humans