Signal detection in pathological skin picking. Findings from non-clinical sample
Journal Title: Archives of Psychiatry and Psychotherapy - Year 2013, Vol 15, Issue 3
Abstract
Aim of the study . The present study investigated the role of general impulsivity in pathological skin picking (PSP). Material and methods . Three groups of participants: university students who pick their skin and experience distress and/or functional impairment caused by picking (n = 27), students who pick their skin but do not experience distress and/or functional impairment caused by picking (n = 19), and students without history of skin picking (n = 43) were administered the task based on the search for the emotionally neutral signal hidden among distractors. It was predicted that individuals suffering from PSP should present an impulsive reaction style, i.e. they should search for the signal faster than individuals without history of PSP and should react to irrelevant stimuli rather than missing the correct reaction. Results . Participants with severe picking performed as quickly and correctly as controls, thus not revealing an impulsive reaction pattern. Students with milder forms of picking reacted more slowly than the others gradually diminishing their performance as the task was extended. Discussion . Individuals with severe PSP symptoms are not characterized by general impulsiveness defined as a tendency to react quickly and carelessly. Skin picking behaviors of different severity may be associated with different signal detection patterns. Conclusions . The results of the current study indicate that skin picking is not a homogeneous condition. They also provide that skin picking behavior in ‘severe’ pickers and non – ‘severe’ ones may have different underlying psychological mechanism
Authors and Affiliations
Katarzyna Prochwicz, Alina Kałużna-Wielobób, Anna Starowicz-Filip
Keywords
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