Elevated schizotypy relates to similar cognitive attenuations as seen in psychosis and cannabis/polydrug use. Also, in schizotypal populations cannabis and polydrug (including licit drug) use are enhanced. These cognitive attenuations may therefore either be a behavioral marker of psychotic (-like) symptoms or the consequence of enhanced drug use in schizotypal populations. To elucidate this, w...

Associations between schizotypy and handedness were examined in 733 undergraduates for the Sta and Unex scales of the O-LIFE inventory and several measures derived from the Annett hand preference questionnaire. Higher schizotypy scores were found for mixed-handers defined in various ways, including inconsistent preference for any item of the questionnaire and also the presence of either hand re...

This paper reviews studies that have examined associations between unusual sleep experiences (including nightmares, vivid dreaming, narcolepsy symptoms, and complex nighttime behaviors) and dissociation and schizotypy. Using correlational studies and structural analyses, evidence is provided that unusual sleep experiences, dissociation, and schizotypy belong to a common domain. It is demonstrat...

This study investigated the factor structure and etiology of four self-report schizotypy questionnaires during young adulthood (age 18-27) in 98 monozygotic and 59 same-sex dizygotic twin pairs from the community. A single phenotypic factor was identified that was primarily associated with Perceptual Aberration, Magical Ideation, and the Rust Inventory of Schizotypal Cognitions scales, and less...

Background: Individuals at ultra-high risk (UHR) for psychosis are understood to be the putative prodrome of overt psychosis, although there is still a possibility of false positives. The aim of the present study is to examine the potential links between multi-dimensional schizotypy, basic symptoms and emerging psychosis as defined by positive symptoms in individuals at ultra-high risk (UHR) fo...

The concept of schizotypy or "psychosis proneness" captures individual differences in perceptual, cognitive, and affective experiences that may relate to a range of psychotic disorders. The concept is an important way to assess the contribution of pre-existing psychological and genetically based biological features to the development of illnesses such as schizophrenia (so called endophenotypes)...

INTRODUCTION: Increasing evidence suggests that schizophrenia spectrum disorders lie at the extreme end of a continuum of psychosis proneness, ranging in severity from mild (non-clinical) schizotypy, through to schizophrenia. Individuals with schizotypal traits can be identified in the general population and display a constellation of cognitive perceptual disturbances; disorganised thought; and...

A large correlational study took a latent-variable approach to the generality of executive control by testing the individual-differences structure of executive-attention capabilities and assessing their prediction of schizotypy, a multidimensional construct (with negative, positive, disorganized, and paranoid factors) conveying risk for schizophrenia. Although schizophrenia is convincingly link...

INTRODUCTION Although a considerable amount of research has addressed psychopathological and personality correlates of creativity, the relationship between these characteristics and the phenomenology of creativity has been neglected. Relating these characteristics to the phenomenology of creativity may assist in clarifying the precise nature of the relationship between psychopathology and creat...

Purpose of the Review This review identifies the early developmental processes that contribute to schizotypy and suspiciousness in adolescence and adulthood. It includes the most recent literature on these phenomena in childhood. Recent Findings The early developmental processes that affect schizotypy and paranoia in later life are complex. In contrast to existing studies of psychiatric patie...