Split brain research into hemisphere lateralisation

Question 1

What joins the two halves of the brain

Answer 1

Corpus callosum

Question 2

What is a commmissurotomy

Answer 2

devision of two hemispheres through surgery

Question 3

Where do visual pathways cross over

Answer 3

Optic chiasm

Question 4

Difference between someone with split brain

Answer 4

No connection with the corpus callosum so no communication between the two fields.

Question 5

What is the left hemisphere lateralised for

Answer 5

language, music, analytical tasks, controls the right side of the body, viewing the right visual field.

Question 6

What is the right hemisphere lateralised for

Answer 6

Perception, emotional aspects of language, drawing, information synthesis. facial recognition, spatial tasks, controls left side of body.

Question 7

The split brain procedure

Answer 7

Subject gazes at a fixation point in the centre of the screen. Images and words flashed to either side. asked to say, write or feel what they saw. Presented at a 1/10th/s

Question 8

Visual recognition in the right visual field

Answer 8

(left hemisphere) speech and writing

Question 9

Visual recognition in the left visual field

Answer 9

(right hemisphere) PPs say they have seen nothing but could use their lefthand to feel for a matching object on the table.

Question 10

Facial recognition

Answer 10

In the right hemisphere, if shown a composite face they would be able to describe from the left hemisphere and select with the right.

Question 11

Language

Answer 11

Left hemisphere function. Right does have some language function. Wall clock shown to the right hemisphere and the pps found a wrist watch.

Question 12

limitations

Answer 12

All epileptic, male, 11
not representative

Question 13

What did kimura find

Answer 13

more aphasia in men than women with hemisphere damage

Question 14

Strengths to procedure

Answer 14

fixation point and short time prevented eye tracking
standardised
basic