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Examines how contact-heat stimulation intensity affects pain rating reliability in individuals with different heat tolerance, suggesting implications for pain assessment.
The TSSP effect reflected by lower pain rating reliability appears to be induced in the high heat-tolerance group when a contact-heat stimulation is preceded by another stimulation with higher intensity but with the same duration. This is possibly due to the longer offset time of contact-heat stimulations with higher intensity, and also the top-down modulatory effects in this high heat-tolerance group. Further electrophysiological studies would be needed to investigate the underlying neural processes of TSSP in individuals with different heat tolerance.
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Chan et al. (2026) studied this question.
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