Biopsychology - Hemispheric Lateralisation

Question 1

Hemispheric lateralisation

Answer 1

Two hemisphere of brain are functionally different

Question 2

Left controls

Answer 2

Left controls - language and right side of the body

Question 3

Right controls

Answer 3

Visual and motor task and left side of the body

Question 4

Split Brain research

Answer 4

Brain was split by cutting the corpus collision so each hemisphere could not communicate

Question 5

Sperry aim

Answer 5

Two hemisphere are specialised for certain functions

Question 6

Sperry method

Answer 6

Used individuals who had there corpus collision cut to help with seizures

Image to patients left visual field or right visual field describe what they saw

Shown stimuli on the (right eye) left hemisphere and asking to respond
Repeated

Drawing tasks object place in front of patient left side of there body it was controlled by the right hemisphere and vis versa

Question 7

Results

Answer 7

Split brain patients could not transfer information to other hemisphere

left hemisphere - perform task
Right hemisphere didn’t as they wouldn’t be able to comprehend

Unable to respond in the right as language resides on the left and was an able to communicate information to the other hemisphere same with performing tasks

Question 8

Evaluation of hemispheric lateralisation research

Answer 8

+ standardised procedures

• hard to generalise - case study only using split brain patients - don’t know that there could be an affect that cutting the corpus collosum may have had