Behavioural Approach Explaining Phobias Flashcards
(9 cards)
Behavioural approach:
A way of explaining behaviour in terms of what is observable and in terms of learning.
Classical conditioning:
Learning by association. Occurs when 2 stimuli (unconditioned stimulus and neutral stimulus). The neutral stimulus eventually produces the same response that was first produced by the unlearned stimulus alone.
Operant conditioning:
A form of learning in which behaviour is shaped and maintained by its consequences.
Two-process model:
Phobias are acquired (learned in the 1st place) by classical conditioning and the continue because of operant conditioning. Mowrer.
Watson and Rayner: Little Albert
- LA showed no unusual anxiety at the start of the study. He tried to play with the white rat when shown it.
- When they presented the rat they made a loud noise, by banging an iron bar close to his ear (UCS), which creates a UCR, fear.
- When the rat (NS) and the UCS, are encountered close together in time, they both produce a conditioned response.
- Rat is now a CS that produces a CR.
- Was then generalised to similar objects, non-white rabbit, a fur coat and Watson wearing a Santa Claus beard made out of cotton balls. Displayed distress.
Maintenance by Operant Conditioning
- In negative reinforcement, an individual avoids a situation that is unpleasant, results in a desirable consequence. Behaviour is less likely to be repeated.
- Mowrer suggested that whenever we avoid a phobic stimulus we successfully escape the fear and anxiety that we would have suffered if we had remained there.
- Reduction in fear reinforces the avoidance behaviour and the phobia is maintained.
E: Good Explanation
- 2 process model was a step forward when it was proposed in 1960 as it went beyond Watson and Rayner’s concept of classical conditioning.
- It explained how phobias could be maintained over time, had important implications for therapies because it explains why patients need to exposed to the feared stimulus.
- Once they stop avoidance behaviour, the behaviour stops being reinforced, so it declines.
- Application to therapy is a strength.
E: Alternative Explanation
- Not all avoidance behaviour is done for anxiety reduction, especially in more complex phobias like agoraphobia.
- Some evidence that avoidance behaviour is due to positive feelings of safety, not leaving the house to stick with the safety factor.
- This could explain why patients with agoraphobia are able to leave their house with a trusted person with relatively little anxiety, but not alone (Buck 2010).
- Problem for the 2 process model, avoidance is motivated by anxiety reduction.
E: An incomplete explanation
- If we accept that C & O conditioning are involved in acquiring and maintaining phobias, some aspects require further explaining.
- Bounton points out that evolutionary factors probably have an important role in phobias, 2 process model doesn’t mention it.
- We easily acquire phobias of things that have been a source of danger in our evolutionary past, snakes and the dark.
- Seligman called this biological preparedness, innate predisposition to acquire certain fears.
- However, it is much more rare to develop a fear of cars, a greater risk, only existed recently, not biologically prepared to learn fear responses. More to acquiring phobias than simple conditioning.