Sensory and Physiological Dimensions of Cold Pressor Pain in Trichotillomania

This study examined whether adults with trichotillomania (TTM) had different sensory or physiological responses to cold pressor pain compared to healthy controls. The study included 19 TTM participants and 14 controls. Results showed no differences in pain tolerance, recovery time, or pain ratings between the groups. Although TTM participants had a significantly lower systolic blood pressure before immersion and a lower heart rate at 90 seconds, these differences did not persist at other time points. Overall, the study concluded that adults with TTM did not exhibit reduced pain sensitivity or analgesia to cold pressor pain, and there was no association between pain and TTM symptom severity.