Hemispheric Laterallisation And Split Brian Research Flashcards
What is hemispheric lateralisation
Concerns the fact The brains hemisphere are not alike and Have different specialisms
Bricks found that damage to the left = impaired language but same on the right doesn’t
The left hemisphere
To do with speech and language
Right hemisphere
Visual motor tasks
How are the brain hemispheres connected
Bundle of nerves-corpus callousum
Allows information to be transferred one side to the other
What were the steps in sperrys experiment
Particapenrs sat in front of a board with horizontal lights and asked to stare at the middle
The lights flashed across their right and left visual cmfeilf
The participants said they could only see the right side of the board
What happens when the participants covered their right eye
They said they could not see the lights stall
Why could you get not see the the lights
They Ahmad seen the lights and they could pony at it but they could not say that they had seen it because theeee is no language centre in the right side of the brain so they could not say they have seen it
What does sperry’s theory prove
That in order to say that you have seen something the region of the brain must be associated with speech to communicate with areas that process visual information
Evaluate: What is the the problems with split brain patients
They are rare
Samples based of 2 or 3people
They may have other neurological problems
Not always completely split so could be generalised
How does jw contradict sperry’s original claim
Ability to split out the right hemisphere and so could speak out his left or right side of his brain
How is brain lateralisation evoulutionarily adaptive
Chicken brain lateriallisation allows birds to use one side of heir brain for locating food and the other for watching predators
Allows chickens to use cognitive multi tasking
What do individuals with high levels of mathematical skills have
They have superior right hemispheres abilities
More likely to be left handed
Suffer allergies and other immune system problems-relationship between brain laterialisation and the immune system
What happens to brain laterialisation when we age
Becomes less laterialised
Face declining mental abilities the brain compensates by allocating more resources to cognitive tasks
