Blakemore And Cooper Flashcards
Aim
To test whether kittens raised in an environment of vertical or horizontal stripes would develop normal vision
How long were the kittens in darkness for?
First two weeks
From 2 weeks to 5 months how long did each kitten spend each day in the cylinder
5 hours
What was the IV
Vertical stripes and horizontal stripes
What observations were made when the kittens were allowed in light?
Ability to move around and respond to objects, judge distance as well as response to rod held vertically and horizontally
What was done at 7.5 months
Anaesthetising cats, presenting bright light, gathering information from individual neurons in the eye (125 overall from 2 kittens)
How many cats involved in the biological studies
2 kittens, one vertically reared, one horizontally
Name a control element
Cylinders same diameter and length
Name some results
Moved by touch rather than sight
Lacked startle response if something moved quickly towards them
How long did it take for kittens to get over deficiencies
10 hours of normal visual experience
Discuss the rod and startle response
If the rod was vertical and the kitten was raised in vertical environment, would follow and play
Startle response if Perspex sheet with stripes on from their condition brought rapidly towards them they would startle
Discuss the biological study response
Eg in horizontally raised cat- most neurons respond around vertical axis