Biopsych -> Localisation & Lateralisation

Question 1

Localisation of Function

Answer 1

Localisation of function refers to the principle that functions have specific locations within the brain. The hemispheres of the cerebrum mainly represent the opposite side of the body, this is known as contralateral organisation.

Question 2

Weaknesses of localisation

Answer 2

Some functions are more localised than others
Too complex
&
Equipoteniality theory
&
Communication between brain areas

Question 3

Hemispheric Lateralisation

Answer 3

one side of the brain
language centres
Broca’s Area
expressive aphasia
Wernicke’s Area
receptive aphasia.

visuo-spatial functions and facial recognition.
corpus callosum
highly integrated system

Question 4

Strengths of Hemispheric Lateralisation

Answer 4

Evolutionary perspective
Chickens
&
Global aphasia

Question 5

Weaknesses of Hemispheric Lateralisation

Answer 5

JW - R. Hemisphere
&
Patterns shift with age

Question 6

Split-Brain Research

Answer 6

cut the corpus callosum
split-brain patients.

no way for the information presented to one hemisphere to travel to the other.
left or right visual field
their left hand, right hand or verbally

image in their right visual field
the language centres
draw a picture

Question 7

Strength of split brain research

Answer 7

Experiments on split-brain patients are highly controlled and scientific.

Question 8

Weaknesses of split brain research

Answer 8

Small sample size
Difficult to generalise
&
Artificial
Lacks ecological validity
&
Difference in disconnection