Phobias - Explanations - Ohman

Biological Explanation for the development of phobias - Ohamn

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  • Created by: Kaydee
  • Created on: 29-03-13 19:37
What is the aim of Ohman's study?
To see if phobias of snakes could be more easily conditioned than phobias of faces or houses, indicating a biological preparedness to develop phobias of certain objects
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What methodology did Ohman use?
A laboratory experiment (with participants linked to a machine which would deliver shocks after some pictures, fear reaction measured by skin conductance)
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How many participants took part in Ohman's study?
64 paid volunteers
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What experimental design did Ohman use?
Independant design. With participants in either snakes, faces or houses condition
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What were the participants asked to rate the shock they recieved as?
Uncomfortable but not painful
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How long were the pictures presented for ?
8 seconds
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What were the average skin conductance results following the shocks after pictures for snakes, faces & houses?
Snakes = 0.062 , Faces&Houses = 0.048
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What conclusion did Ohman make from the results of the study?
Participants were more likely to show fear reactions to snakes than houses or faces, so this shows a biological preparedness to develop phobias to objects that may cause danger eg. snakes
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Card 2

Front

What methodology did Ohman use?

Back

A laboratory experiment (with participants linked to a machine which would deliver shocks after some pictures, fear reaction measured by skin conductance)

Card 3

Front

How many participants took part in Ohman's study?

Back

Preview of the front of card 3

Card 4

Front

What experimental design did Ohman use?

Back

Preview of the front of card 4

Card 5

Front

What were the participants asked to rate the shock they recieved as?

Back

Preview of the front of card 5
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