Localisation Of Function In The Brain Flashcards
What is the localisation of function
Theory that different areas of the brain are responsible for specific behaviours processes or activities
What is the main part of the brain called
The cerebrum
What is lateralisation
Some of our functions are controlled dominated by one hemisphere
What does the right hemisphere control
Activity on the left hand side of the body is controlled
What does the left hemisphere control
Activity on the right hand side of the body
What is the cerebral cortex
Outer layer of both hemispheres
What are the 4 lobes of the brain
Frontal lobe
Parietal lobe
Occipital lobe
Temporary lobe
What is a lobe
Part of an organ that is separate in some way from the rest of the
Where is the motor area located
At the back of the frontal lobe
What does the motor area control what happens if it gets damaged
Voluntary movement in the opposite side of the body
Damage to this areas of the brain may result in a loss of control in fine movement
Where is the somatosensory located
At the front of both parietal lobe which is separated from motor area by a valley called central sulcus
What does the somatosensory area control
Sensory information from the skin is represented. The amount of somatosensory area devoted to a particular body part denotes its sensitivity for instance receptor for our face and hands occupy over half of the somatosensory area
Where is the visual area located
In the occipital lobe at the back of the brain
what does the visual area do
Each eye sends information from the right visual field to the left visual cortex and from the left visual field to the right visual cortex
what happens when to the visual area when the left hemisphere is damaged
can produce blindness in part of the right visual field of the both eye
where is the auditory area
temporal lobe
what does the auditory area do
analyses speech based information
what when there is damage to the auditory area
partial hearing loss
where is the Brocas area
frontal lobe in the left hemisphere responsible for speech
where is the Wernickes area
temporal lobe encircling the auditory cortex in left hemisphere responsible for language comprehension
in most people where is language restricted
left side of the brain
what did Paul broca identify
identified a small area in the left frontal lobe responsible for speech production
what happens to damage of the Broca area
causes Broca aphasia characterized by speech that is slow and lack in fluency and preposition and conjunctions
What is Wernicke aphasia
people who had no problem producing language but difficulty understanding it such that the speech that they produced was meaningless
what is a STRENGTH
-Damage to area of the brain has been linked to mental disorders
-Neurosurgery is a last resort treatment for treating some mental disorders
-Darin Doughtery reported on 44 people with OCD who had undergone a cingulotomy
-after 32 weeks about 30% had met criteria for successful response to surgery and 14% for partial response
The success of these procedures suggests that behaviours associated with serious mental disorders may be localised
what is a LIMITATION
Language may not be localised to Brocas area andd Wernickes area
-Anthony Dick and Pascale Trembley only 2% of modern researcher think that language in the brain is completely controlled by Broca’s and Wernicke’s areas
-FMRIs mean that shows language function is distributed holistically in the brain
-Language streams have been identified the across cortex
what is the frontal area
located behinfd the forehead vital for functions including voluntary movement and impulsive control
what is the parietal area
located to the frontal lobe anterior to the occipital and superior process the sense of tpouch
what is the temporal area of the
play a role in managing emotions processing information from your senses, storing and retrieving memories and understanding
what is the occipital area of the
seat of the most brain visual cortex allowing you not only to see and process information
