Blakemore and Cooper's Study of the Impact of Early Visual Experience

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1. Which of these was different between cats in the different independent variables?

  • The cat was only able to follow a metal rod with the orientation it was raised in
  • Those raised in horizontal condition struggled to jump down from tables/chairs
  • Cats would only reach for a table in raised in the horizontal condition
  • There was no significant difference
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2. How was the participants' response to light measured?

  • They had sodium chloride solution injected into their brain to trace the pathways relating to the optic nerve
  • They were anaesthetised and had bright slits put in front of their eyes, while recording individual neurons
  • They were assessed on how well they could follow a slit of light with their paws
  • They were assessed on how well they could follow a slit of light with their eyes

3. What age period did the participants enter the cylinder?

  • 4 weeks to 10 months
  • 3 weeks to 7 months
  • 2 weeks to 5 months
  • 1 week to 3 months

4. Which of these isn't an ethical consideration regarding animal research

  • Animals may only be used in experiments if there is no suitable alternative including non-living tissue
  • Pain and distress cause must be limited in terms of duration and intensity
  • Animals used in experiments much be reared with that purpose in mind
  • If pain or stress is too severe the animal must be put down

5. What was the independent variable?

  • How long the participant spent in total darkness daily
  • Whether the participants were in a horizontally striped or vertically striped cylinder
  • Whether the participants were in black cylinder or white cylinder
  • Whether the participants were in a diagonally striped, horizontally striped, or vertically striped cylinder
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