Learning theories Flashcards
Explain the classical conditioning theory
explains how behaviours are learned = association
UCS (unconditioned stimulus) —> UCR (unconditioned response)
UCS + NS (neutral stimulus) —-> UCR
CS (conditioned stimulus) —-> CR (conditioned response)
Extinction = occurs when the learned association between UCS + NS ends and the CS no longer elicits a CR and so it becomes a NS again.
What is spontaneous recovery?
suddenly after extinction without reconditioning and pairing the learned association reappears and the CS starts to elicit the CR again.
What is stimulus generalisation?
when a stimulus similar to the original CS can elicit the same CR e.g. in little Albert the white rabbit elicits the same fear response as the white rat
What is the aim of Pavlov (1927)?
finding out if reflexive behaviour can be produced in new situations by learning, associating reflex with a NS to produce a CR
What is the procedure of Pavlov (1927)?
- study occurred in a special room for dogs so the dog isn’t distracted by footsteps from the researcher
dogs strapped into a harness and mouth is linked to a surgically attached tube to collect saliva - check reflex = pavlov put meat into the dogs mouth to check the salivation reflex, salivation to meat = UCR
- pairing = pavlov paired metronome and giving the dogs food to get the dog to salivate when it heard the metronome(pairing took place at least 20x)
UCS food —-> UCR salivation
UCS food + NS metronome/ bell —-> UCR salivation
CS metronome/ bell —-> CR salivation
What is the findings of Pavlov (1927)?
checking natural reflex = immediate salivation as expected
metronome study = salivation started after 9s and by 45s 11 drops had been collected
electric buzzer = after meat no salivation but with pairing once it gave saliva
What is the conclusion of Pavlov (1927)?
- signalisation in brain links food and metronome to give reflex
- food must be in dogs mouth before salivation occurs in the natural reflex
- external stimuli could disrupt conditioning sensitive to extraneous variables
What is the sample of Pavlov (1927)?
35 dogs, variety of breeds raised in kennels in a lab
Describe Skinner’s pigeons (1948) experiment?
- pigeons put into a cage where a food dispenser would swing into the cage and dispense food at regular intervals every 15 seconds
- when the food was due to appear, pigeons started acting strange as they were repeating whatever behaviour they were doing when the food was first offered.
What is the operant conditioning theory?
theory that behaviour is learnt based on the consequences of past behaviour
behaviour —-> consequence —-> likelehood of repetition
- consequence can be punishment or reinforcement
How does reinforcement affect behaviour?
it strengthens the behaviour, so it is more likely to be repeated
What is the difference between primary and secondary reinforcement?
- primary = reward is a basic need e.g. food, water
- secondary = the reward itself isn’t a basic need but it can be used to access a basic need e.g. money can be used to buy food.
What is positive reinforcement?
a pleasant reward/ consequence that makes behaviour more likely
e.g. pocket money
What is negative reinforcement?
removing an undesired consequence to make behaviour more likely
e.g. behave well to avoid punishment
How does punishment affect behaviour?
weakens the behaviour, behaviour is less likely to be repeated
What is positive punishment?
an unpleasant consequence that makes behaviour less likely
e.g. speeding ticket
What is negative punishment?
removal of something pleasant makes behaviour less likely
e.g. bad behaviour = phone taken away
What is Bandura’s social learning theory (SLT)?
looks at how we learn behaviour by observing other people and imitating them without conditioning
What does modelling mean?
it is when behaviour is modelled by a role model and the person observing the role model identifies with them.
What is imitation?
it is when someone copies the observed behaviour of others
What is vicarious reinforcement?
It is copying other peoples behaviour as you have seen them being rewarded for it
Describe the stages of social learning theory?
- Attention = observer must pay attention to modelled behaviour, attending to behaviour means it is moved to STM
- Retention = episodic memory of behaviour must be retained (encoded and stored) in memory
- Reproduction = modelled behaviour is carried out if/when the opportunity arises (only reproduced depending on motivation)
- Motivation = reproduction happens because of motivation which depends on reinforcement or punishment ( motivation = reinforcement) (demotivation = punishment)
What is the aim of Watson and Rayner (1920)?
classic study
could they cause a baby to develop a fear he did not previously have through classical conditioning
- could fear be transferred to other animals/objects
- effect of time on the conditioned response
What is the procedure of Watson and Rayner (1920)?
classic study
- labratory study
- first tested to see if NS (white rat) elicited a fear repsonse - it didn’t
- UCS = loud noise made when researchers hid behind a curtain and hit a steel rod with a hammer —-> UCR fear
- conditioned a fear of the rat by pairing loud noise when white rat was presented Albert whimpered and didn’t touch it
- fear could be transferred to other things such as a dog and rabbit
What is the sample of Watson and Rayner (1920)?
classic study
Albert B = healthy, unemotional baby who was reared in a hospital his mom was a wet nurse
What is the findings of Watson and Rayner (1920)?
classic study
UCS loud noise —> UCR fear
UCS fear + NS white rat —-> UCR fear
CS white rat —-> CR fear
fear response could be generalised to objects that looked similar to the white rat
response could be transferred to other settings, fear response to the rat occurred in the lab and a lecture theatre
What is the conclusion of Watson and Rayner (1920)?
classic study
A CR can occur in humans after a few pairings of stimuli and the CR can be transferred to other stimuli
- as albert was removed from the study we can’t see if the CR can be extinguished
- fear response can be transferred and generalised.
What is shaping?
Used to establish a target behaviour when it is more complex
e.g. bird turning in a circle
learning to swim
What are the steps of shaping?
- reinforce any slight version of target behaviour
2. reinforce closer and closer approximations of the target behaviour
What is primary reinforcement?
- reinforcement given is something that is desirable like food
What is secondary reinforcement?
- reinforcement given is something that is associated with something desirable
like money to buy food
What are schedules of reinforcement?
- a plan for how and when reinforcement is given