Functional Areas Of Cerebral Cortex
FUNCTIONAL AREAS OF CEREBRAL CORTEX
- Cerebral cortex presents functionally specialized areas.
- Three general kinds of functional area:
- Sensory areas
- Association areas
- Motor areas
- Sensory areas receive sensory input, motor areas control movement of muscles.
- Association areas are involved with more complex functions such as learning, decision making and complex movements such as writing.
- Each of the major senses has a specific brain region called a primary sensory cortex.
- There are also multimodal association areasto process information.
- These areas can be located on different lobes of cerebral hemisphere as given below:

|
FRONTAL LOBE |
|
Brodmann’s area 4 Areas 6,8 Areas 6,8 Area 6,8,9 Area 44, 45 Area 9,10,11,12 |
|
|
PARIETAL LOBE |
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Areas 3,1,2 Areas 5,7 Area 40 Area 39 |
|
|
TEMPORAL LOBE |
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Areas 41, 42 Secondary auditory area ORarea 22 |
|
|
OCCIPITAL LOBE |
|
Strike area, area 17 Secondary visual area OR area 18,19 |
|

Exam Question
- Locus coeruleus is the most important source of noradrenergic innervation to the cerebral cortex.
- Broca’s area is formed of two minor gyri, called pars opercularis and pars triangularis, that lie in the posterior end of the inferior frontal gyrus. This area subserves expressive language function.
- Area 8 (the frontal eye field) is concerned with eye movements.
- Spongiform degeneration of cerebral cortex occurs in Creutzfeldt-Jakob disease
- Trunk has small representation in somatosensory area of cerebral cortex
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