Sensitivity to light and noise
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چکیده
COlWid.&lY demonstrated the developm% of "Celltral sensitiz&ion” in response to repeated discharge of primary. a&rent nociceptors (1, 2). Convergence of low-threshold mechanoreceptive neurons on spinothalamic tract*neurons that have been sensitized bv nociceptive input is thought account for tenderness around tlE site of injury. It now seems clear that abnormal persistence of this sensitization uro&ss contributes to sensorv disturb&es experienced by many patients with -chronic pain syndromes (3). Low-grade nociceptive input aDDears to-be sufficient to m&a& kmptoms of central sensi-
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