Sperry

Question 1

Area

Answer 1

Biological

Question 2

What is the term for when one side of the brain has a different function to another?

Answer 2

Lateralisation of function

Question 3

What is the name of the fibres that carry the information between hemispheres?

Answer 3

Corpus callosum

Question 4

Aim

Answer 4

To investigate the functions of the separated hemispheres

Question 5

Sample

Answer 5

11 American epileptics who had undergone split brain surgery
Also a control group of non-epileptics

Question 6

Procedure

Answer 6

• If an object is seen in the left visual field, it goes to the right hemisphere and vice versa
  1. Visual: objects or visual stimuli were flashed in either visual field. A maths question was presented in the left visual field. The participants could draw the answer but not speak it
  2. Tactile: Objects were felt with either hand while the participants could not see them. For example if an object was felt by the left hand the participant could point to the item but not describe it

Question 7

Conclusions

Answer 7

The left hemisphere of the brain controls language ability and the right side of the body
The right hemisphere of the brain controls non-verbal communication and the left side of the body