primary somatosensory cortex

E764634

brain region cortical area gray matter structure somatosensory area

The primary somatosensory cortex is a region of the brain’s parietal lobe that processes tactile, proprioceptive, and nociceptive information from the body to create conscious perception of touch and body position.

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All labels observed (3)

Label	Occurrences
somatosensory cortex	4
primary somatosensory cortex canonical	2
sensory cortex	1

How this entity was disambiguated

This entity first appeared as the object of triple T8902307 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: primary somatosensory cortex
Context triple: [middle cerebral artery, supplies, primary somatosensory cortex]

A. primary motor cortex
The primary motor cortex is a brain region in the frontal lobe responsible for the voluntary control and precise execution of skeletal muscle movements.
B. cerebral cortex
The cerebral cortex is the brain’s highly folded outer layer responsible for complex functions such as perception, language, thought, and voluntary movement.
C. supplementary motor area
The supplementary motor area is a region of the medial frontal cortex involved in planning, coordinating, and initiating complex voluntary movements, especially those requiring sequences or bilateral coordination.
D. premotor cortex
The premotor cortex is a region of the frontal lobe involved in planning and preparing voluntary movements, integrating sensory information to guide motor actions.
E. auditory cortex
The auditory cortex is a region of the brain’s temporal lobe responsible for processing and interpreting sound information, including aspects like pitch, volume, and speech.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: primary somatosensory cortex
Target entity description: The primary somatosensory cortex is a region of the brain’s parietal lobe that processes tactile, proprioceptive, and nociceptive information from the body to create conscious perception of touch and body position.

A. primary motor cortex
The primary motor cortex is a brain region in the frontal lobe responsible for the voluntary control and precise execution of skeletal muscle movements.
B. cerebral cortex
The cerebral cortex is the brain’s highly folded outer layer responsible for complex functions such as perception, language, thought, and voluntary movement.
C. supplementary motor area
The supplementary motor area is a region of the medial frontal cortex involved in planning, coordinating, and initiating complex voluntary movements, especially those requiring sequences or bilateral coordination.
D. premotor cortex
The premotor cortex is a region of the frontal lobe involved in planning and preparing voluntary movements, integrating sensory information to guide motor actions.
E. auditory cortex
The auditory cortex is a region of the brain’s temporal lobe responsible for processing and interpreting sound information, including aspects like pitch, volume, and speech.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	brain region ⓘ cortical area ⓘ gray matter structure ⓘ somatosensory area ⓘ
borderedBy	central sulcus ⓘ primary motor cortex ⓘ
BrodmannArea	1 ⓘ 2 ⓘ 3a ⓘ 3b ⓘ
hasFunction	conscious perception of body position ⓘ conscious perception of touch ⓘ processing nociceptive information ⓘ processing proprioceptive information ⓘ processing tactile information ⓘ processing temperature information ⓘ stereognosis ⓘ texture discrimination ⓘ two-point discrimination ⓘ vibration sense ⓘ
hasProperty	columnar organization ⓘ contralateral representation of body ⓘ cortical magnification of sensitive body parts ⓘ somatotopic organization ⓘ
involvedIn	body schema representation ⓘ sensorimotor integration ⓘ tactile learning and plasticity ⓘ
lesionCauses	astereognosis ⓘ contralateral loss of fine touch ⓘ contralateral loss of proprioception ⓘ impaired two-point discrimination ⓘ
locatedIn	parietal lobe ⓘ postcentral gyrus ⓘ
partOf	cerebral cortex ⓘ neocortex ⓘ somatosensory system ⓘ linked to: Nervous System
projectsTo	motor cortex ⓘ posterior parietal cortex ⓘ linked to: supramarginal gyrus premotor cortex ⓘ secondary somatosensory cortex ⓘ
receivesInputFrom	dorsal column–medial lemniscus pathway ⓘ spinothalamic tract ⓘ thalamus ⓘ ventral posterolateral nucleus of thalamus ⓘ ventral posteromedial nucleus of thalamus ⓘ
represents	body surface ⓘ muscles and joints ⓘ
synonym	S1 ⓘ primary somesthetic cortex ⓘ

How these facts were elicited