Hemispheric Lateralisation AO1 & AO3

Question 1

What is Hemispheric Lateralisation?

Answer 1

2Hemispheres are functionally different; certain behaviours and metal processes are mainly controlled by one hemisphere

Question 2

How is the language centre lateralised?

Answer 2

RH - only produces rudimentary words/phrases / Synthesiser

LH - contains the two main lang centres / analyser

Question 3

Give 2 examples of functions that aren’t lateralised

Answer 3

Vision

Somasensory

Question 4

What function is cross wired

Answer 4

Motor
RH controls left
LH controls right

Question 5

What is Corpus Callosum responsible for?

Answer 5

communicating messages between the hemispheres

Question 6

Who conducted Key Research into Hemispheric Lateralisation?

Answer 6

Sperry - research into Split Brain

Question 7

What were the 4 tasks done in Sperry’s research?

Answer 7

1) Describing what you see
2) Recognition by Touch
3) Matching Faces
4) Composite Words

Question 8

What were findings in ‘Describing what you see’?

Answer 8

Pic in the right visual field could be described

Pic in left visual field CANT be described b/c of lack of lang centres in RH

Question 9

What were the findings for ‘Recognition by Touch’?

Answer 9

Object in left visual field could be matched up by touch to a physical object with left hand (RH)

Question 10

What were the findings for ‘Composite words’?

Answer 10

2 word shown at the same time on each visual field - the ppt would pic up the object they saw with their left visual field but say the word they saw in their right

Question 11

What were the findings for ‘Match faces’?

Answer 11

Face shown in left visual field (RH) was selected

Face shown in right visual field (LH) ignored