Split Brain Research into Hemispheric Lateralisation

Question 1

What are the three AO3 PEELS to evaluate split brain research?

Answer 1

Strength - scientific methods
Weakness - indv diff
RTC by patient EB

Question 2

P
(scientific methods)

Answer 2

Strength - uses scientific methods

Question 3

E

Answer 3

• this is bc it is based on objective and empirical techniques such as a controlled lab env
• to identify which hemisphere is responsible for each task

Question 4

E

Answer 4

• e.g. split brain patients were only able to verbally say what they saw when image was presented to LVF
• suggesting LH is activated during lang tasls

Question 5

L

Answer 5

• arguably, inc overall int val of hemispheric lateralisation research
• therefore raising psychologys scientific status

Question 6

P
(indv diff

Answer 6

However, the int val of research may be questioned due to the limitation of indv diff in ppts

Question 7

E

Answer 7

• such as how lateralised their brain was
• the extent to how severed the corpus callosum was for each ppt significantly varied

Question 8

E

Answer 8

• with some having a greater disconnection than others
• this is a weakness bc research may not be measuring effects of lateralisation effectively

Question 9

L

Answer 9

• therefore reducing the int val of split brain research

Question 10

P
(RTC by EB)

Answer 10

Moreover, RTC - case study - patient EB

Question 11

E

Answer 11

• he suffered from brain damage which resulted in the removal of his LH, therefore his lang centres
• however, eventually he regained some of his lang ability

Question 12

E

Answer 12

• which wouldnt be possible if the brain was completely lateralised
• this shows lang must be in more areas than the LH, arguing against lat of function in the brain