Sperry

Question 1

Sperrys aim?

Answer 1

To study the physiological effects of hemispheric disconnection in split brain patients and to use these results to understand how the left and right hemispheres work in people.

Question 2

Sperrys IV and DV?

Answer 2

IV: whether the person has had hemispheric disconnection
DV: participants performance on the two hemispheric tests.

Question 3

Sperrys sample?

Answer 3

11 epileptic patients who had had surgery and had all had epileptic treatment but didnt respond to drugs.
9 had recent surgery
2 had their corpus collosums cut.
Opportunity sampling

Question 4

Sperrys research method?

Answer 4

Quasi-experiment/ case study

Question 5

What approach is sperry in?

Answer 5

Phsyiological

Question 6

Sperrys procedure?

Answer 6

Visual fields test- ps look at centre point and an image flashes up on either r or l of visual field for 100ms and they are to say what they saw
Both visual fields- image on both sides of the point and asked to draw what they saw
Tactile test, one hand- without knowledge of what, object placed into one of the hand and they are asked to find the corresponding object in a bag
Both hands- objects placed in both hands and asked to find corresponding object in bag

Question 7

Sperry results?

Answer 7

• could recognise an object if shown twice to same visual field
• if shown to rvf they could say they’d seen it
• if asked to close their eyes and draw what they’d seen, they drew what they saw in their left vf
• object placed in r hand they could identify it by name

Question 8

Sperry conclusion?

Answer 8

Results support the idea of lateralisation of the function of the brain, with different areas of the brain specialising in different tasks