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Somatosensation

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.

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Related Experiment Video

Updated: May 14, 2026

Assessment of Sensory Thresholds in Dogs Using Mechanical and Hot Thermal Quantitative Sensory Testing

Assessment of Sensory Thresholds in Dogs Using Mechanical and Hot Thermal Quantitative Sensory Testing

Published on: October 26, 2021

[Applications of 'quantitative sensory testing'].

Wouter R Verberne¹, Tom J Snijders, K Seng Liem

¹UMC Utrecht, Rudolf Magnus Institute of Neuroscience, Utrecht, the Netherlands.

Nederlands Tijdschrift Voor Geneeskunde

|February 2, 2013

Summary

This summary is machine-generated.

Quantitative sensory testing (QST) offers a comprehensive, non-invasive method to assess the somatosensory nervous system. It is valuable for diagnosing neuropathies and understanding pain mechanisms.

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Area of Science:

Neurology
Neuroscience
Clinical Diagnostics

Context:

Quantitative sensory testing (QST) provides a non-invasive, standardized approach to evaluate the somatosensory nervous system.
It offers advantages over methods like electromyography by assessing thin and unmyelinated nerve fibers and subjective sensations.

Purpose:

To highlight the diagnostic and research applications of QST in neurological conditions.
To emphasize QST's utility in understanding pathophysiological mechanisms and evaluating treatment efficacy.

Summary:

QST is validated for diagnosing small fiber neuropathy, diabetic neuropathy, chemotherapy-induced peripheral neuropathy, and neuropathic pain.
It aids in studying sensory symptoms in various diseases and assessing the effects of analgesic treatments.
Future applications may include diagnosing and predicting outcomes for more neuropathies and chronic pain syndromes like fibromyalgia.

Impact:

QST enhances the diagnostic capabilities for peripheral neuropathies.
It provides valuable insights into the mechanisms underlying sensory disturbances and pain.
Potential to expand diagnostic and prognostic utility to a wider range of neurological and pain conditions.