Primary Somatosensory Area (S1)

A region in the parietal cortex, specifically the postcentral gyrus, responsible for processing primary somatosensory information such as touch, temperature, pain, and proprioception from the body.

Key Functions:

• Processes primary somatosensory information (touch, pressure, temperature, pain, proprioception).
• Receives input from the ventral posterior nucleus of the thalamus.
• Arranged somatotopically (sensory homunculus).

Interacting Systems & Components:

• Parietal Cortex (located within)
• Thalamus (receives input from ventral posterior nucleus)
• Spinal Cord (receives ascending sensory pathways from)
• Sensory Perception (key for)