✓ Localisation of Function (AO1) Flashcards
What are 6 Cortexes/Areas looked at Localisation of Function?
- motor cortex
- somatosensory cortex
- visual cortex
- primary auditory cortex
- broca’s area
- wernicke’s area
Where is the Motor Cortex?
located at the back of the frontal lobe, adjacent to the central sulcus
What does the Motor Cortex control?
voluntary movements in the opposite side of the body
What would damage to the Motor Cortex do?
damage to this area may result in loss of fine motor movements to the opposite side
i.e. damage to right motor cortex may result in loss of fine motor movements in the left side of the body
Why does the Motor Cortex control the opposite side of the body?
the motor area of the brain has contra-lateral wiring
Where is the Somatosensory Cortex?
located at the front of the parietal lobe, adjacent to the central sulcus
What does the Somatosensory Cortex do?
where information from the skin is represented, allowing you to have sensations (sight, taste, touch, etc.)
What denotes sensitivity in the Somatosensory Cortex?
the size of area devoted to a particular body part denotes its sensitivity
(face & hands occupy over half of somatosensory area)
Where is the Visual Cortex?
located at the back of the brain in the occipital lobe
How does the Visual Cortex work?
each eye sends info from the right visual field to the left visual cortex & vice versa
vision is contra-lateral & ipsilateral
(opposite & same-sided)
What would damage to the Visual Cortex do?
damage to this area would effect vision of the visual field on the opposite side
(e.g. damaged right visual cortex impairs vision of left visual field)
Where is the Primary Auditory Cortex?
located in the temporal lobe
What does the Primary Auditory Cortex do?
analyses speech-based information
What would damage to the Primary Auditory Cortex do?
damage to this area can result in hearing loss
- the larger damage, the worse the effect
Where is Broca’s area?
located in the frontal lobe
