Somatotopic Organization
Sensory Areas
1. Primary somatosensory cortex
2. Somatosensory association
cortex
3. Visual areas
4. Auditory areas
5. Olfactory cortex
6. Gustatory cortex
7. Vestiular cortex
Primary area - information comes into this area first
primary sensory area (somatic sensory (postcentral gyrus)
visual cortex
auditory cortex
gustatory cortex
Secondary area
somatic sensory area II (parietal lobe)
Tertiary area
posterior parietal cortex
Somatotopic Organization 1
, Association cortex
parietal-temporal-occipital association area
Sensory cortex
Sensory cortex is found in the postcentral gyrus
Brodmann's areas 1, 2 and 3 - primary somatosensory area 1
Brodmann's areas 5 and 7 - somatosensory association area
(somatosensory area 2)
if there is damage to these areas then the person will be unable to feel
sensation
Somatosensory association cortex
found posterior to the primary somatosensory cortex and is
neurally tied to it
Synthesizes multiple sensory inputs to create a complete
comprehension of the object being felt
Somatotopic Organization 2
Sensory Areas
1. Primary somatosensory cortex
2. Somatosensory association
cortex
3. Visual areas
4. Auditory areas
5. Olfactory cortex
6. Gustatory cortex
7. Vestiular cortex
Primary area - information comes into this area first
primary sensory area (somatic sensory (postcentral gyrus)
visual cortex
auditory cortex
gustatory cortex
Secondary area
somatic sensory area II (parietal lobe)
Tertiary area
posterior parietal cortex
Somatotopic Organization 1
, Association cortex
parietal-temporal-occipital association area
Sensory cortex
Sensory cortex is found in the postcentral gyrus
Brodmann's areas 1, 2 and 3 - primary somatosensory area 1
Brodmann's areas 5 and 7 - somatosensory association area
(somatosensory area 2)
if there is damage to these areas then the person will be unable to feel
sensation
Somatosensory association cortex
found posterior to the primary somatosensory cortex and is
neurally tied to it
Synthesizes multiple sensory inputs to create a complete
comprehension of the object being felt
Somatotopic Organization 2
