Heightened Sense of Incompleteness in Excoriation (Skin-Picking) Disorder

Background Excoriation (Skin-Picking) Disorder (SPD) is characterized by repetitive skin picking resulting in tissue damage. This study examined associations between the tendency to experience a sense of incompleteness (henceforth trait incompleteness) and pathological skin picking across two studie...

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Bibliographic Details
Published in:Cognitive therapy and research 2021-08, Vol.45 (4), p.759-766
Main Authors: Ricketts, Emily J., Snorrason, Ívar, Mathew, Abel S., Sigurvinsdottir, Erna, Ólafsson, Ragnar P., Woods, Douglas W., Lee, Han-Joo
Format: Article
Language:English
Subjects:
Anxiety
Clinical Psychology
Cognitive Psychology
College students
Diagnosis
Emotions
Medicine
Medicine & Public Health
Mental depression
Obsessive compulsive disorder
Original Article
Quality of Life Research
Skin
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Summary:Background Excoriation (Skin-Picking) Disorder (SPD) is characterized by repetitive skin picking resulting in tissue damage. This study examined associations between the tendency to experience a sense of incompleteness (henceforth trait incompleteness) and pathological skin picking across two studies. Methods In study 1, undergraduate students ( n  = 481) completed self-report measures of skin picking severity, trait incompleteness, perfectionism, obsessive-compulsive symptoms, and negative affect (i.e., depression, anxiety). In study 2, undergraduate students with a diagnosis of SPD ( n  = 61) and a control group without SPD ( n  = 63) rated skin picking severity, trait incompleteness, obsessive-compulsive symptoms, and negative affect (i.e., depression, anxiety, and stress). Results In study 1, linear regression showed that trait incompleteness significantly predicted skin picking severity, after controlling for other variables. In study 2, logistic regression showed trait incompleteness significantly predicted SPD diagnosis, after controlling for other variables. There was no significant correlation between incompleteness and symptom severity within the SPD group. Conclusions The results indicate a robust association between SPD and trait incompleteness. More research is needed to establish whether trait incompleteness may represent a vulnerability factor underlying SPD, or if skin picking leads to susceptibility to trait incompleteness.
ISSN:0147-5916
1573-2819
DOI:10.1007/s10608-020-10201-5