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Related Concept Videos

Sensation01:21

Sensation

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Sensory receptors are specialized neurons that respond to specific types of external stimuli, initiating the process known as sensation. This occurs when sensory input, such as light entering the eye, is detected by these receptors, causing chemical changes in the cells of the retina. These cells then convert the sensory stimulus into action potentials that are transmitted to the central nervous system, a process termed transduction.
Absolute thresholds can quantify the sensitivity of sensory...
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Related Experiment Video

Updated: Mar 26, 2026

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

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Quantitative sensory testing (QST). English version.

M Mücke1,2, H Cuhls3, L Radbruch3

  • 1Department of General Practice and Family Medicine, University Hospital of Bonn, Bonn, Germany. martin.muecke@ukb.uni-bonn.de.

Schmerz (Berlin, Germany)
|January 31, 2016
PubMed
Summary
This summary is machine-generated.

Quantitative sensory testing (QST) offers a standardized method to assess nerve fiber function by measuring perception and pain thresholds. This psychophysical approach aids in diagnosing sensory system disorders in clinical practice and trials.

Keywords:
Pain profileQSTQuantitative sensory testingSensitivity testSomatosensory nervous systemSomatosensory phenotypeZ-score

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Area of Science:

  • Neurology
  • Sensory Neuroscience
  • Clinical Diagnostics

Background:

  • Quantitative sensory testing (QST) is a formalized clinical method to evaluate somatosensory system function.
  • It involves subjective psychophysical assessments using calibrated stimuli to determine perception and pain thresholds.
  • QST provides insights into sensory gain or loss, reflecting nerve fiber integrity.

Purpose of the Study:

  • To present a standardized Quantitative Sensory Testing (QST) battery.
  • To characterize symptom patterns of sensory loss and gain, including thermal and mechanical stimuli.
  • To evaluate the utility of QST in clinical trials and practice for diagnosing somatosensory system dysfunction.

Main Methods:

  • Application of calibrated thermal and mechanical stimuli to mimic natural sensations.
  • Measurement of perception and pain thresholds to identify sensory alterations.
  • Assessment of both cutaneous and deep tissue sensibility.

Main Results:

  • The QST battery can detect sensory loss (impaired nerve fiber function) and sensory gain (hyperalgesia, allodynia).
  • Most QST parameters require logarithmic transformation for normal distribution, with exceptions noted for specific thresholds.
  • A comprehensive QST profile can be obtained within one hour.

Conclusions:

  • Quantitative Sensory Testing (QST) is a valuable diagnostic tool for characterizing somatosensory system function.
  • It aids in identifying peripheral and central nervous system alterations affecting sensory pathways.
  • QST's standardized nature makes it suitable for both clinical practice and research settings.