Blakemore and Cooper Study into Early Visual Experience

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  • AIM- to test whether kittens raised in an environment of vertical or horizontal stripes would develop normal vision.
    • Blakemore and Cooper's Study of Early Visual(1970)
      • METHOD- the sample were kittens that were kept in complete darkness for two weeks. This was a lab experiment. They were then placed in a visual display experience their were two independent conditions which made it an independent measures design.
        • Kittens were then taken into a well lit room with objects such as tables and chairs which meant and the reactions to this were recorded and noted.  this was the DV of the experiment.
        • At 7.5 months old two of the kittens one from each condition were anaesthetised so there neurophysiology could be measured.
      • RESULTS- The kittens were visually impaired but recovered from many deficits 10 hours after normal exposure.
        • Had no startle response.
        • frightened when they reached the edge of the surface.
        • They shown behavioural blindness- horizontally raisedkittens could not detect vertical objects and vice versa.
        • Permenant damage was caused as they were bad at judging distances and had jerky movements and were clumsy.
      • ETHICS-  All ethics are regarding to animals which is different to all other studies.
        • the research that was conducted couldn't have been done on humans but should we have used animals.
        • has to be justified whether this type of research should be allowed as its has a low medical benefit.

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