Lateralisation, Language and The Brain

Question 1

If an object was presented to the left hemisphere of a Split-brain patient by touching something with the RIGHT hand or viewing something in the right visual field, the patient will be able to….

Answer 1

They will be able to pick up the correct object with the right hand but not the left hand and they would be able to name the object.

Question 2

If an object was presented to the RIGHT hemisphere of a split-brain patient either by touching it with the left hand or viewing it in the LEFT visual field, the patient will be able to…

Answer 2

They would pick the correct object with the left hand but not with the right hand and they would claim nothing has been presented.

Question 3

What is the left hemisphere mainly involved in?

Answer 3

Language related tasks

Question 4

What is the right hemisphere mainly involved in?

Answer 4

Tasks involving spatial ability, emotional stimuli and musical tasks

Question 5

90% of the population have their speech areas in which hemisphere?

Answer 5

Left

Question 6

What is aphasia?

Answer 6

Deficit in language comprehension and production due to brain damage

Question 7

What is Broca’s aphasia?

Answer 7

Characterised by the inability to initiate well-articulated conversational speech. Situated in the left inferior frontal lobe in the left hemisphere. It is associated by speech production and grammar.

Question 8

What is Wernicke’s aphasia?

Answer 8

Damage in this area leads to semantic language comprehension. Situated in the posterior to the primary auditory cortex in the superior temporal gyrus.