Light touch on the skin loses its pleasure in people with migraine

Light touch on the skin loses its pleasure in people with migraine

Reviewed by James Ives, M.Psych. (Editor) Feb 14 2020 A recent study published in the journal Cephalalgia , the official journal of the International Headache Society, builds on the sensorial characteristics of migraine patients. The study, entitled "C-tactile touch perception in migraineurs - a case-control study", was led by Dr. Gudrun Gossrau, from the University Hospital and Faculty of Medicine Carl Gustav Carus, Dresden, Germany. Migraine is a neurological disorder that affects every sense. Leaving the headache aside, many other symptoms that make up the disease are the result of sensory abnormalities. Hypersensitivity to light (photophobia), sounds (phonophobia) and smells (osmophobia), nausea, vomiting, aura, allodynia (that pain in the scalp when combing or making hair ponytails), and other less common ones. These sensory disturbances make it evident that migraine is much more than a headache and that it affects people's functionality in a wider and substantial manner. In Dr. Gossrau's study, to get an idea of how migraine influences sensory functioning, the researchers investigated the response to the tactile stimulus (light touch on the skin) of people with migraine. In addition to the discriminatory aspect of the tactile stimulus (location, the pressure of the stimulus), the researchers evaluated affective aspects of touch, that is, the sensation of pleasure associated with touch. The researchers applied different speeds of touch with a brush on the forearm and cheek (region innervated by the trigeminal nerve) and measured the associated pleasure, discomfort or pain responses. The effect of repeated stimuli in a row was also measured (30 stimuli repeated in 60 minutes of testing). Fifty-two people without migraine (controls) and 52 patients were tested. Patients reported higher scores for pain in both applied areas (forearm and cheek) and less sensation of pleasure in the test of repeated stimuli. Interestingly, patients using triptan to abort their attacks showed normal scores. According to the authors, the same neurophysiological processes related to allodynia could explain these results. Related Stories



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