Common abnormalities within the schizophrenia spectrum may be essential for the pathogenesis of schizophrenia, but additional pathological changes may be required for the development of full-blown schizophrenia. Clarifying the neurobiological similarities and differences between established schizophrenia and a milder form of schizophrenia spectrum disorder would potentially discriminate the pat...

Body dysmorphic disorder (BDD) is a somatoform disorder characterized by an excessive concern with an imagined or slight defect in appearance. BDD has been particularly studied in cosmetic surgery settings. The object of the present study is to investigate the relationship between personality disorders and dysmorphic symptoms in a group of 66 patients seeking cosmetic surgery. Assessment instru...

The current experiment examined emotional processing difficulties related to self referential material in high schizotypal individuals employing the mnemic neglect paradigm. Participants read about behaviors, in reference to themselves, that were either central or peripheral, and positive or negative, before recalling those behaviors. Levels of self reported unusual experiences and cognitive di...

We examined the internal consistency, factor structure, and validity of the Schizotypal Personality Questionnaire-Brief (SPQ-B). Two hundred thirty-seven psychiatrically hospitalized adolescents were administered the SPQ-B and a battery of well-established self-report instruments. The SPQ-B demonstrated adequate internal consistency. Exploratory factor analysis provided mixed support for the SP...

Multisensory integration, the process by which sensory information from different modalities are bound together, is hypothesized to contribute perceptual symptomatology in schizophrenia, whom multisensory integration differences have been consistently found. Evidence emerging that these extend across schizophrenia spectrum, including individuals general population with higher levels of schizoty...

In a discussion of the article on genetic determinants of borderline conditions by Siever and Gunderson, a phenotypic continuum between pure schizotypal and pure affective conditions is postulated. Many "borderline" cases are seen as attenuated forms of schizophrenia, schizoaffective psychosis, or manic-depression. A Venn diagram illustrates differences among syndromes described by Gunderson, K...