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  2. Secondary somatosensory cortex - Wikipedia

    en.wikipedia.org/wiki/Secondary_somatosensory_cortex

    S2 is colored green and the insular cortex brown in the top right image (coronal section) of the human brain. S1 is green in the top left, and the supplementary somatosensory area is green in the bottom left. The human secondary somatosensory cortex (S2, SII) is a region of sensory cortex in the parietal operculum on the ceiling of the lateral ...

  3. Somatosensory system - Wikipedia

    en.wikipedia.org/wiki/Somatosensory_system

    Region S2 (secondary somatosensory cortex) divides into Area S2 and parietal ventral area. Area S2 is involved with specific touch perception and is thus integrally linked with the amygdala and hippocampus to encode and reinforce memories. Parietal ventral area is the somatosensory relay to the premotor cortex and somatosensory memory hub, BA5.

  4. Postcentral gyrus - Wikipedia

    en.wikipedia.org/wiki/Postcentral_gyrus

    In neuroanatomy, the postcentral gyrus is a prominent gyrus in the lateral parietal lobe of the human brain.It is the location of the primary somatosensory cortex, the main sensory receptive area for the sense of touch.

  5. Primary somatosensory cortex - Wikipedia

    en.wikipedia.org/wiki/Primary_somatosensory_cortex

    In neuroanatomy, the primary somatosensory cortex is located in the postcentral gyrus of the brain's parietal lobe, and is part of the somatosensory system. It was initially defined from surface stimulation studies of Wilder Penfield , and parallel surface potential studies of Bard, Woolsey, and Marshall.

  6. Somatosensory evoked potential - Wikipedia

    en.wikipedia.org/wiki/Somatosensory_evoked_potential

    After synapsing in the thalamus and traversing the internal capsule, the N20 is recorded over the somatosensory cortex contralateral to the wrist stimulated, corresponding to arrival of the nerve impulses at the primary somatosensory region. [3] Posterior tibial nerve stimulation at the ankle gives rise to a similar series of subsequent peaks ...

  7. Nerve compression syndrome - Wikipedia

    en.wikipedia.org/wiki/Nerve_compression_syndrome

    Nerve compression syndrome, or compression neuropathy, or nerve entrapment syndrome, is a medical condition caused by chronic, direct pressure on a peripheral nerve. [1] It is known colloquially as a trapped nerve , though this may also refer to nerve root compression (by a herniated disc , for example).

  8. Sensory nervous system - Wikipedia

    en.wikipedia.org/wiki/Sensory_nervous_system

    The fourth compartment contains the nucleus and is a continuation of the IS region, known as the nuclear region. Finally, the fifth compartment is the synaptic region, where it acts as a final terminal for the signal, consisting of synaptic vesicles. In this region, glutamate neurotransmitter is transmitted from the cell to secondary neuron cells.

  9. Sensory map - Wikipedia

    en.wikipedia.org/wiki/Sensory_map

    An example is the somatosensory map which is a projection of the skin's surface in the brain that arranges the processing of tactile sensation. This type of somatotopic map is the most common, possibly because it allows for physically neighboring areas of the brain to react to physically similar stimuli in the periphery or because it allows for ...