Lateralsation (Split Brain; Sperry) - BIOPSYCHOLOGY

Question 1

what are the two sides of the brain called

Answer 1

left and right hemisphere

Question 2

how are the hemispheres arranged

Answer 2

lateralised arrangement

Question 3

what causes the ability of communication between hemispheres

Answer 3

corpus callosum

Question 4

what feature is only in the left hemisphere

Answer 4

language

Question 5

which areas are involved in the language sector of the left hemisphere

Answer 5

Broca’s area

Wernicke’s area

Question 6

Broca’s area function

Answer 6

speech production

Question 7

Wernicke’s area function

Answer 7

language development

Question 8

which areas are mirrored in both hemispheres

Answer 8

motor cortex
somatosensory cortex
amygdala
hippocampus
basal ganglia

Question 9

where do functional areas in both hemispheres always connect to

Answer 9

the opposite side of the body (e.g. left hemisphere controls right arm)

Question 10

relationship between body and brain hemispheres psychological name

Answer 10

contralateral organisation

Question 11

how do we know about contralateral organisation

Answer 11

split-brain patients (epilepsy surgery)

Question 12

key study linked to lateralisation

Answer 12

Sperry and Gauniga (1967) - split brain patient experiment

Question 13

aim of Sperry and Gauniga (1967)

Answer 13

to investigate hemispheric lateralisation of function in split brain patients

Question 14

IVs in Sperry and Gauniga (1967)

Answer 14

IV (1) - stimulus number presented to RHS (hand/eye)

IV (2) - stimulus number presented to LHS (hand/eye)

Question 15

findings of Sperry and Gauniga (RHS body)

Answer 15

stimulus presented to right hand can be reported verbally but not signaled with right hand

Question 16

findings of Sperry and Gauniga (LHS body)

Answer 16

stimulus presented to left hand can be signaled with left hand but not reported verbally