learning theories Flashcards
what are three assumptions of learning theories?
- human behaviour is learnt after birth
- all individuals are born as a blank slate (tabula rasa)
- every experience teaches an individual a near behaviour
Describe classical conditioning
developed by: Pavlov
Key idea: learning a new behaviour is a process of association so that two stimuli are linked together to produce a newly leaned response
- unconditioned stimulus produces and unconditioned response
- neutral stimulus is paired with an unconditioned stimulus to create an unconditioned response
- conditioned stimulus now creates a conditioned response
Pavlov Dogs: 35 dogs of various breeds
unconditioned stimulus - food
unconditioned response - salivation
neutral stimulus - sound of buzzer or tuning fork
conditioned stimulus - sound
conditions response - salivation
What are three things that can happen after classical conditioning?
Extinction:
- association can simply disappear between conditions stimulus and conditions response
Spontaneous recovery:
- after extinction sometimes the association recurs for no specific reason
Stimulus generalisation:
- tendency for the conditioned stimulus to produce the same behaviour to a similar situation after the response has been conditioned
Evaluate classical conditioning as an explanation for human learning
Alternative theory:
- social learning theory
Methodology:
- scientifically credible as its based on empirical evidence from lab experiments
- generalising from dogs to humans is difficult
- reductionist experiment so lacks validity
Evidence:
- pavlov made dogs salivate
- Watson and Rayner conditioned fear in a baby
- deterministic as it assumes a person has no control over their reactions
Applications:
- effective treatments such as aversion therapy and systematic desensitatisation
What is the aim of Watson and Rayners study?
To test wether classical conditioning occurs in humans
- wether they could condition fear of an animal by simultaneously presenting the animal and striking a steel bar to make a loud noise
- wether the fear would be transferred to other animals or objects
- the effect of time on the conditioned response
What was the procedure of Watson and Rayners study?
- Little albert was healthy from birth and was clam and unemotional
9 Months:
- watson and rayner carried out emotional baseline tests to asses his fear reactions
- showed no fear to a white rat, rabbit or cotton wool
- banged a hammer against a steel bar, his lips puckered and tumbled and had a crying fit
11 Months and 3 days:
- checked his responses again
- white rat presented (no fear and reached his hand out)
- as his hand touched the rat the bar was struck (did not cry but jumped and fell forward)
- as other hand touched rat bar was struck again (jumped violently and whimpered)
11 Months and 10 days:
- rat presented without sounds (reached but did not touch)
- given blocks to play with (control)
- after more conditioning
- white rat presented and albert cried immediately, turned and started to crawl away
11 Months and 15 days:
- rabbit alone (negative response, cried)
- blocks (played well and energetically)
- fur coat ( withdrew and began to fret)
- cotton wool (would not touch)
- santa mask (negative)
11 Months at 20 days:
- presented rat alone and alberts reaction was less marked than previously
- association had weakened so they renewed it
- conditioned fear to dog and rabbit (stimulus generalisation)
- experiment moved to lecture room to study effects of different environments
What are the conclusions from Watson and Rayners study?
- A fear response could be conditioned
- A fear response could be transferred to different stimuli (stimulus generalisation)
- conditioning had remained after a month (follow up procedure)
- infants could be classically conditioned to develop a fear of a white rat
- conditioned emotional responses have the possibility of lasting a life time
- objects similar to the feared stimulus can also elicit a fear response
Evaluate Watson and Rayners study
Generalisability:
- case study of one individual
- young child so not representative
Reliability:
- high reliability
- standardised procedures such as being in same room and only watson and rayner being there
Applicability:
- treatments to unlearn responses
- systematic desensitisation for phobias
- cbt
Validity:
- high validity as lab expeirement with high levels of control
- used blocks as a control
- cause and effect is shown
- ecological validity is low as babies tend to learn in more complex environments
Ethics:
- unethical
- psychological harm
- mother/father may not have been clear about what was happening
What is classified as a phobia?
- the fear of the object, item or situation is marked an persistent which affects a persons functioning in everyday life
- exposure to the phobic stimulus provokes an immediate anxiety response
- the object, item or situation is excessively avoided
- symptoms must be present for at least 6 months
Describe systematic desensitisation
Developed by: Wolpe
- focusses on providing a methodical way to introduce an individual to their feared stimulus in a gradual manner
- step by step process where an individual with a phobia becomes more and more familiar with the feared object, item or situation
- carried out over a long period of time
- can be introduced in vivo (real object) or in vitro (imaginary)
- individuals are taught how to relax their muscles suing progressive muscle relaxation
- over the period of time, anxiety should reduce
- the learnt stimulus and response will be broken
Evaluate systematic desensitisation
ALEE
Alternatives:
- flooding therapy
- CBT
- Virtual reality therapy (Freeman)
Limitations:
- individuals differences must be taken into account (this therapy may not suit everyone)
- cannot be applied to those with a more generalised anxiety disorder
- reductionist as it assumes all phobias develop by classical conditioning
- less effective for phobias that have a survival component such as dangerous animals (may be evolutionary)
Effectiveness:
- generalisable to many types of phobias
- Capafons found it was effective to treat fear of flying
- evidence such as McGrath found that 75% of individuals with phobias respond to this treatment
- this treatment is preferred by NHS
Ethics:
- ethical as exposure to the fear is gradual and agreed with the individual prior
- enables individual to feel empowered and involved
Describe flooding therapy
Developed by: Stampfl
- involves phobic person being placed in a situation with their feared object/situation for a prolonged period with no means of removing themselves from the situation
- involves exposing individual to their fear all at once
- uses the idea that a phobia response is caused by an alarm reaction that only have a certain longevity before they subside
- alarm reaction makes blood sugar available for energy in fight or flight
- as the body uses up all the blood sugar then it will start to calm
Evaluate Flooding therapy
ALEE
Alternatives:
- systematic desensitisation
- CBT
- virtual reality
Limitations:
- treatment is not useful for other mental health difficulties
- some clients adquire more anxiety
Effectiveness:
- can be used with many different phobias
- faster then other therapies
- wolpe carried out an experiment with a girl afraid of cars, drive her around for just a few hours until she was calm
Ethics:
- individual is put into a situation of great distress
- trauma for patient
- wolpe study although the girl eventually calmed, for a long time she was hysterical
- issues of social control as the patient cannot leave the fearful situation
What was the aim and participants for Capafons study?
Aim: To investigate the effects of systematic desensitisation as a treatment programme to treat fear of flying
Participants:
- 41 participants recruited by media campaign (volunteer sample)
- treatment group had 20 p’s
- control group had 21 p’s
What was the procedure of capafons study?
Step one:
- all participants interviewed individually
- all subjects completed IDG-FV diagnostic test
Step two:
- p’s called back individually to watch videotape of plane visit whilst undergoing psychophysical measurement
- temp of room maintained at 22.5 degrees
- p sat in armchair 1.8m from tv
- before the video, p’s had a habituation session where they became familiar with the recording instruments
- p’s responses were measure for 3 minuted before starting the video
- patient then watched the video
Step three:
- at the end of the video another appt was made for thither next treatment session or next assessment
- interval between first and second was 8 weeks
Step four:
- p’s receiving treatment had two one hour sessions per week
- minimum 12 session maximum 15
- training techniques of breathing, progressive relaxation and imagination
Step five:
- after 8 weeks, both groups came back to retake questionnaire and video test
What were the results and conclusion from capafons study?
Pre-treatment:
- no marked difference between two groups on all variables and all were similar in their fear of flying
Post-treatment:
- marked difference between control waiting list group and treatment group
- after therapy heart rate measure for treatment group was 0.99 but control group was 1.31
- after therapy, self report measure for treatment group was 13.25 but control group was 25.81
CONCLUSION:
- there was no significant decrease in the fear of flying in the control group whereas there was a significant decrease in the experimental group that had treatment
- therefore, systematic desensitisation is an effective treatment for reducing fear of flying
Evaluate Capafons study
Generalisability:
- only 20 participants in treatment group
- self selected sample so may be biased
- not representative of everyone with phobias of flying
Reliability:
- high
- sand raised procedures such as temp and distance from tv
- increases scientific credibility
Applicability:
- effective treatment for fear of flying
- therapy does not work for everyone (10% of treatment group showed little improvement)
Validity:
- high internal validity
- lab experiment
- control over extraneous variables such as having a control group
- objective and quantitive methods used
- self report questionnaire lowers validity
- low ecological validity
Ethics:
- participants all gave consent
- all p’s supported throughout the study
- researchers made the control group wait some time before treatment
What are the main principled and the ABC method of operant conditioning?
Developed by: B.F Skinner
- behaviour is shaped by its consequences
- behaviour is learnt through positive and negative reinforcement
ABC Model:
A = Antecedent (the situation or stimulus that triggers a behaviour)
B = Behaviour (the response made by the organism)
C = Consequence (what happens because go the behaviour
Two types of consequence:
Reinforcer - increase the probability of a behaviour being repeated
Punisher - decrease the likelihood of a behaviour being repeated