Pain Sensitivity Evaluation
Pain Sensitivity Evaluation - Related Videos
14:56
An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)
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Cited by 107 •
2010
Diffuse noxious inhibitory control, temporal summation and wound hyperalgesia testing are demonstrated in the obstetric patient. These tests evaluate inhibitory and excitatory mechanisms of pain processing and are here utilized to evaluate endogenous analgesia at different time-points during pregnancy and the peripartum period to help reveal individual s risk for persistent pain.
07:28
A Protocol of Manual Tests to Measure Sensation and Pain in Humans
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Cited by 24 •
2016
The goal of this procedure is to demonstrate a battery of quantitative techniques for sensory and pain measurement in humans. The equipment and techniques described are commonly found in pain clinics or are easy to obtain.
09:19
Evaluating the Effectiveness of Cancer Drug Sensitization In Vitro and In Vivo
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Cited by 4 •
2015
Here, real-time monitoring of tumor cell metabolism, combined with an in vivo chicken embryo chorio-allantoic membrane (CAM) model of metastasis, are used to evaluate novel anti-cancer targets/agents for their ability to sensitize tumor cells to DNA damaging chemotherapeutics.
01:34
Early Intervention and Pain Management
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Monitoring Animals for Signs of Pain and Distress Recognizing early signs of pain is essential for ethical animal research. Animals are routinely monitored using behavioral, physical, and physiological parameters that reflect...
05:10
Back Mechanical Sensitivity Assessment in the Rat for Mechanistic Investigation of Chronic Back Pain
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Cited by 4 •
2022
To develop novel therapeutic interventions for the prevention and management of back pain, animal models are required to examine the mechanisms and effectiveness of these therapies from a translational perspective. The present protocol describes the BMS test, a standardized method to assess back mechanical sensitivity in the rat.
FAQs
Each stimulus type probes responsiveness through a different controlled sensory challenge. Thermal stimulation examines reactions to heat or related temperature changes, mechanical stimulation applies physical force, and electrical stimulation uses an electrical input. Comparing responses across modalities can reveal whether altered nociception appears broadly or mainly under particular testing conditions, improving characterization of sensory patterns.
These measures describe separate stages of the response. A pain threshold reflects when a stimulus is perceived as painful, whereas tolerance indicates how much stimulation an individual can withstand. An intensity rating records the reported severity of the experience. Using these measures together distinguishes stimulus sensitivity from perceived magnitude and endurance.
The distinction identifies the direction of altered nociception, meaning changed processing of potentially painful sensory input. Hypersensitivity indicates an increased response, while reduced sensitivity indicates a diminished response. Recognizing these contrasting patterns helps clinicians and researchers describe sensory abnormalities more precisely and relate them to neurological conditions, chronic pain, or treatment effects.
Standardization makes the stimulus conditions and recorded outcomes more comparable between patients and studies. When assessments use controlled stimulation and consistent measures such as thresholds, tolerance, or intensity ratings, observed differences are easier to interpret as changes in responsiveness rather than inconsistent testing. This supports clearer evaluation of disease patterns and analgesic treatment effects.
A typical assessment selects a controlled stimulus modality, applies the stimulation systematically, and records the participant’s response using measures such as detection threshold, pain threshold, tolerance, or intensity rating. The resulting pattern is then examined for increased or reduced responsiveness. This structured workflow supports comparison within an individual, across patients, or between studies.
Clinicians and investigators can use these assessments to characterize altered nociception in neurological conditions and chronic pain. They also provide a way to examine responses during research on analgesic treatments. By documenting sensory changes and treatment-related differences, testing can support diagnostic characterization, follow-up monitoring, and more individualized pain management.
Controlled measurements provide outcome indicators for examining whether responsiveness changes during analgesic treatment studies. Investigators may compare thresholds, tolerance, intensity ratings, or broader response patterns across standardized assessments. These data help describe treatment-related changes in sensory function and improve comparisons among participants, although interpretation depends on the selected stimulus and measurement.