Localisation of function in the brain Flashcards
Motor, somatosensory, visual, auditory, and language centres (Broca's and Wernicke's areas) in the brain
Define localisation of function
Different parts of the brain are involved in different tasks and are associated to different behaviours
What is the outer layer of both hemispheres called?
The cerebral cortex (about 3mm thick)
What is the left side of the body controlled by? (And vice versa)
The right hemisphere (And vice versa)
What function does the frontal lobe have?
It is the motor cortex. It controls voluntary movement of the opposite side of the body.
What would happen if you were to damage your frontal lobe?
May result in a loss of control over voluntary movement/fine motor movement.
What function does the parietal lobe have?
It is the sensory cortex. Controls information from the senses.
What function does the occipital lobe have?
It is the visual cortex. It controls left and right visual fields to the left and right cortex.
What would happen if the left hemisphere of the occipital lobe was damaged?
It can produce blindness in the right visual field of both eyes
What function does the temporal lobe have?
It is the auditory cortex. This area analyses speech based information.
What would happen if the temporal lobe was damaged?
Damage to this area would produce partial hearing loss. The more extensive the damage the more extensive the loss.
Where is Broca’s area located in?
The left hand frontal lobe
Where is Wernicke’s area located in?
The left hand temporal lobe
What does Broca’s area control?
Speech production
What happens if Broca’s area is damaged?
They will develop Broca’s Aphasia. (Slow and laborious speech)
What does Wernicke’s area control?
Speech comprehension
What happens to people who have damaged Wernicke’s area?
They produce speech without a problem but find it difficult to understand what’s being said to them.
