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Sensory Perception: Organization of the Somatosensory System

Sensory Perception: Organization of the Somatosensory System

The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
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The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...

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Potential Energy

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Related Experiment Video

Updated: Jan 22, 2026

Somatosensory Event-related Potentials from Orofacial Skin Stretch Stimulation

Somatosensory Event-related Potentials from Orofacial Skin Stretch Stimulation

Published on: December 18, 2015

Somatosensory evoked potentials.

Iryna M Muzyka¹, Bachir Estephan¹

¹Department of Neurology, Mayo Clinic, Scottsdale, AZ, United States.

Handbook of Clinical Neurology

|July 7, 2019

Summary

Somatosensory evoked potentials (SEPs) are valuable tools for diagnosing nervous system disorders when other methods are inconclusive. Their clinical use is expected to grow as diagnostic and prognostic markers.

Area of Science:

Neuroscience
Clinical Electrophysiology

Background:

Somatosensory evoked potentials (SEPs) are established neurophysiological tests.
SEPs aid in diagnosing conditions when clinical examination and imaging are insufficient.
SEP utilization is increasing despite advancements in magnetic resonance imaging (MRI).

Purpose of the Study:

To highlight the continued relevance and increasing popularity of SEPs in clinical practice.
To underscore the role of SEPs as diagnostic and prognostic markers for nervous system disorders.

Main Methods:

Review of the established clinical application of SEPs.
Discussion of the recognized potentials, montages, and normative values used in practice.
Consideration of the ongoing utility of SEPs in conjunction with advanced imaging.

Keywords:

Dorsal column Evoked potentials Myelopathy Neuropathy Numbness Short latency Somatosensory

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Related Experiment Videos

Last Updated: Jan 22, 2026

Somatosensory Event-related Potentials from Orofacial Skin Stretch Stimulation

Somatosensory Event-related Potentials from Orofacial Skin Stretch Stimulation

Published on: December 18, 2015

A Method for Tracking the Time Evolution of Steady-State Evoked Potentials

A Method for Tracking the Time Evolution of Steady-State Evoked Potentials

Published on: May 25, 2019

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns

Published on: May 12, 2019

Main Results:

SEPs remain a valuable supplementary diagnostic tool for the somatosensory pathway.
Despite variations in nomenclature, consistently recognized SEP components are utilized clinically.
The utility of SEPs is recognized even with the availability of advanced imaging like MRI.

Conclusions:

SEPs are likely to see continued increased use in diagnosing and assessing prognosis for central and peripheral nervous system disorders.
SEPs will remain important in clinical trials for neurological conditions.
Standardization of SEP techniques and interpretation may further enhance their clinical utility.