Cold pressor pain in skin picking disorder

Area of Science:

• Psychiatry
• Pain Research
• Dermatology

Background:

• Excoriation (skin-picking) disorder (SPD) is a recognized mental health condition causing significant distress and tissue damage.
• Previous research has not explored pain perception differences in individuals with SPD compared to healthy controls.

Purpose of the Study:

• To investigate whether individuals with SPD have altered pain thresholds, pain tolerance, or autonomic responses to pain compared to healthy individuals.
• To explore potential links between SPD symptom severity and pain response.

Main Methods:

• A cohort of adults with SPD (n=14) and healthy controls (n=14) underwent clinical assessments.
• Participants completed the cold pressor test to evaluate pain response.
• Autonomic responses (heart rate, blood pressure) and self-reported pain were measured.

Main Results:

• Adults with SPD exhibited a significantly dampened autonomic response to cold pressor pain, indicated by reduced heart rate.
• No significant differences were found in overall pain tolerance, recovery time, or blood pressure between groups.
• SPD symptom severity did not correlate significantly with autonomic pain response.

Conclusions:

• Individuals with SPD display a blunted autonomic physiological reaction to acute pain stimuli.
• This dampened response may contribute to the continuation of skin-picking behaviors, even when cognitively perceived as painful.
• Findings suggest potential avenues for novel therapeutic interventions targeting pain modulation in SPD.