Comparison of visual perceptual organization in schizophrenia and body dysmorphic disorder

Autor(en): Silverstein, Steven M.
Elliott, Corinna M.
Feusner, Jamie D.
Keane, Brian P.
Mikkilineni, Deepthi
Hansen, Natasha
Hartmann, Andrea S. 
Wilhelm, Sabine
Affiliationen: Department of Psychiatry and University Behavioral Health Care, Rutgers University, 151 Centennial Avenue, Piscataway, NJ 08854, USA. Electronic address: steven.silverstein@rutgers.edu. Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA. Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, CA, USA. Department of Psychiatry and University Behavioral Health Care, Rutgers University, 151 Centennial Avenue, Piscataway, NJ 08854, USA. Department of Psychiatry and University Behavioral Health Care, Rutgers University, 151 Centennial Avenue, Piscataway, NJ 08854, USA. Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA. Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA. Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA.
Stichwörter: Obsessive-Compulsive Disorder/diagnosis/psychology; Schizophrenia/diagnosis; Humans; Middle Aged; Attention; Male; Perceptual Disorders/diagnosis/psychology; Schizophrenic Psychology; Emotions; Adult; Female; Visual Perception; Pattern Recognition, Visual; Body Dysmorphic Disorders/psychology
Erscheinungsdatum: 2015
Enthalten in: Psychiatry Research
Band: 229
Ausgabe: 1-2
Startseite: 426
Seitenende: 433
Zusammenfassung: 
People with schizophrenia are impaired at organizing potentially ambiguous visual information into well-formed shape and object representations. This perceptual organization (PO) impairment has not been found in other psychiatric disorders. However, recent data on body dysmorphic disorder (BDD), suggest that BDD may also be characterized by reduced PO. Similarities between these groups could have implications for understanding the RDoC dimension of visual perception in psychopathology, and for modeling symptom formation across these two conditions. We compared patients with SCZ (n=24) to those with BDD (n=20), as well as control groups of obsessive-compulsive disorder (OCD) patients (n=20) and healthy controls (n=20), on two measures of PO that have been reliably associated with schizophrenia-related performance impairment. On both the contour integration and Ebbinghaus illusion tests, only the SCZ group demonstrated abnormal performance relative to controls; the BDD group performed similarly to the OCD and CON groups. In addition, on both tasks, the SCZ group performed more abnormally than the BDD group. Overall, these data suggest that PO reductions observed in SCZ are not present in BDD. Visual processing impairments in BDD may arise instead from other perceptual disturbances or attentional biases related to emotional factors.
ISSN: 0165-1781
DOI: 10.1016/j.psychres.2015.05.107
Externe URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4546849

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