Which hemisphere is more logical?
Left
Which hemisphere is focused on Spatial recognition and emotional recognition?
Right
Where are the languages centers found?
The left hemisphere
What is localisation of function?
The idea that parts of the brain control functions and if that area is damaged, so is the function
Who did Split Brain research?
Sperry and Gazzaniga
When was Sperry and Gazzaniga?
1976
Which hemisphere processes the right visual field?
The left
What is it called when opposite hemispheres control opposite sides of the brain?
Contralateral organisation
Describe what you see - Split brain
Right visual field = describe the image
Left field = cannot describe
What is the corpus callosum?
Bundle of nerves that connect the 2 hemispheres and allow them to transfer information
Positives of split brain
Scientific
Controlled
High validity
Negatives of split brain
Extraneous variables
No control group
Small sample
Variation in disconnect
Drug therapy amounts were not controlled.
Epilepsy may cause changes in the brain
Rogers et al 2004
Brain lateralisation increases neural processing capacity.
Multitasking
Domestic chickens
Szaflarki et al 2006
Lateralisation changes with age.
Language becomes more left.
After 25 it decreases
Turk et al 2006
Damage in the left can develop language in the right.
Not fixed. Can adapt
What was Lashleys theory?
Equipotentiality
What did Lashleys equipotentiality theory state?
Cognitive functions are not all localised.
Basic functions are localised.
Areas of the brain can take over responsibility, e.g. stroke patients
Broca 1865
Patient Tan
Lesions in the left frontal hemisphere.
Similar to 8 others
Dronkers et al 2007
Re examined Brocas patients.
MRI
Other areas with lesions that may have impaired speech
