Sperry

Question 1

Background

Answer 1

Lateralisation of function
Severed corpus callosum
Sample of 11 men and women with split brains

Question 2

Aim

Answer 2

To investigate the psychological effects of hemispheric de connection to find evidence for lateralisation of function in normal brains

Question 3

Sample

Answer 3

11 men and women
Split brain
Previously had severe epilepsy

Question 4

Research method

Answer 4

Quasi exp
Opportunity sampling

Question 5

Procedure

Answer 5

Visual task- one eyed covered and asked to focus on centre point
Stimuli was presented on left or right of the screen
They were asked to write or say what they saw
Tactile task- ppts had eyes covered
They were handed and object in one hand
The object was mixed with many other objects and they were asked to find it with their other hand

Question 6

Apparatus

Answer 6

Tachistoscope

Question 7

Finding

Answer 7

Visual task- info shown and responded to in one visual field can only be recognised again if shown in the same visual field
Tactile task- when an object was placed in each hand then hidden they could only find the object that was paces in their original hands

Question 8

Conclusions

Answer 8

People with split brains have 2 separate visuals inner world each with its on train visual images

Question 9

Strengths

Answer 9

High int val- controls
Useful- naturally occurring iv
High int rel- standardised

Question 10

Weaknesses

Answer 10

Sample bias- small sample all western culture
Lacks scientific nature- quality data