Split Brain- Sperry & Gazzaniga

Question 1

Aim

Answer 1

Examining the extent of hemispheric lateralisation in split brain patients

Question 2

Participants

Answer 2

11 patients who underwent corpus callosotomy as treatment for severe epilepsy

Question 3

Method

Answer 3

• An image/word was projected to the patient’s left or right visual field. When information is presented to one hemisphere, it is not transferred to the other hemisphere
• Tasks
  
  • Describe what you see: a picture was presented to either the left or right visual field and the participant had to describe what they saw
  • Drawing: If an image is displayed in the left/right visual field, ppts. had to draw what they saw

Question 4

Findings

Answer 4

Describing Task
- RVF: were able to describe
- LVF: not able to describe
Drawing Task
- RVF: were not able to draw
- LVF: were able to draw

Question 5

Conclusion

Answer 5

• LH is dominant in speech and language
• RH is dominant in visual-motor tasks