Animal models (12)

Question 1

Which scientists experimented on cats and monkeys?

Answer 1

Hubel and Wiesel

Question 2

Why did they use cats and monkeys?

Answer 2

They have similar brains to humans

Question 3

Describe the experiment on kittens and monkeys that they did.

Answer 3

• got a group of young kittens/monkeys

- stitched shut one eye of each kitten/monkey and kept them like that for several months then unstitched them

Question 4

What did they find from this experiment on kittens?

Answer 4

• the eye that had been stiched up was blind
• the occular dominance columns for the stiched eyes were smaller than normal
• the occular dominance columns for the open eyes were a lot bigger than normal
• the neurones in the visual cortex are said to have switched dominance

Question 5

They repeated the experiment on adult cats, what happened?

Answer 5

Nada, the eyes and visual cortexs were the same as when they started