Hemispheric Lateralisation

Question 1

What is Contralateral control

Answer 1

Each hemisphere controls functions carried out by opposite side of the body.
The left hemisphere processes visual stimuli and movement on the right side of the body
The right hemisphere processes visual stimuli movement on the left side of the body

Question 2

What side is language localised to?

Answer 2

98% of right handed people, is lateralised to the left hemisphere
Speech production is localised to the left frontal lobe (brocas area)
comprehension is localised to the left temporal lobe (wernickes area)

Question 3

What other factors affect lateralisation

Answer 3

Anatomical differences
Handedness
Biological sex

Question 4

Summarise brocas research

Answer 4

Brain damaged patient could not produce language, could only speak the word ‘tan’
Understood speech and followed instructions
Autopsy revealed damage to base of frontal lobe in left hemisphere

Question 5

what is brocas asphasia

Answer 5

• where fluency of speechis impacted
• ppls might be unfluent, miss out words, lack grammar

Question 6

summarise wernickes research

Answer 6

• brain damaged paitents couldn’t understand speech
• could produce fleunt speech, just not follow instructions
• autopsies revelaed all patients had damaged frontal lobes in their left hemisphere

Question 7

what is wernickes asphasia

Answer 7

• loss of speech comprehnsion - effects understanding of words
• ppl might repeat phrases, and be incoherent