Enhanced mental imagery and intact perceptual organization in schizotypal personality disorder

Rebeka Maróthi, S. Kéri

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

According to a widely held view, psychotic disorders such as schizophrenia are characterized by a vague boundary between the perception of the external world and the inner imagery of persons, objects, and events. In this study, we addressed the perception-imagery debate in schizotypal personality disorder (SPD). Thirty individuals with SPD and 30 matched healthy subjects completed a lateral masking task. Participants were asked to detect a low-contrast Gabor patch flanked by two collinear Gabor masks. In the perceptual task, the masks were physically present, whereas in the imagery task, participants only imagined the masks. By applying a binocular rivalry paradigm, we also measured the imagery priming effect. Results revealed that, in the perceptual task, collinear masks similarly decreased contrast threshold in SPD and controls. In the imagery task, contrast threshold reduction (facilitation by the imagined masks) was more pronounced in SPD relative to the controls. In the binocular rivalry paradigm, individuals with SPD showed higher imagery priming effects as compared to healthy controls. Enhanced imagery was not related to schizotypal traits. These results indicate intact early visual perception and heightened imagery in SPD, which may be a trait marker of unusual experiences without psychotic disorganization.

Original languageEnglish
Pages (from-to)433-438
Number of pages6
JournalPsychiatry Research
Volume259
DOIs
Publication statusPublished - Jan 1 2018

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Schizotypal Personality Disorder
Imagery (Psychotherapy)
Masks
Visual Perception
Psychotic Disorders
Schizophrenia
Healthy Volunteers

Keywords

  • Binocular rivalry
  • Early vision
  • Mental imagery
  • Perceptual organization
  • Schizotypal personality disorder

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Enhanced mental imagery and intact perceptual organization in schizotypal personality disorder. / Maróthi, Rebeka; Kéri, S.

In: Psychiatry Research, Vol. 259, 01.01.2018, p. 433-438.

Research output: Contribution to journalArticle

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