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Shamanism and the psychosis continuum
Behavioral and Brain Sciences, 2018AbstractSingh's cultural evolutionary theory of shamanism is impressive, but it does not explain why some people become shamans while others do not. We propose that individual differences in where people lie on a “psychosis continuum” could play an important causal role.
Robert M, Ross, Ryan, McKay
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Explaining transitions over the hypothesized psychosis continuum
Australian and New Zealand Journal of Psychiatry, 2005Objectives: It is crucial to understand the psychological mechanisms that mediate transition from having one or two psychotic symptoms to becoming a patient with a psychotic disorder. This study investigated whether: (i) a delusional interpretation and/or a depressed response to hallucinatory experiences predicts the later onset of clinical psychotic ...
Lydia, Krabbendam +3 more
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Self-reported psychosis-like symptoms and the continuum of psychosis
Social Psychiatry and Psychiatric Epidemiology, 1999It has been suggested that psychotic symptoms may be distributed along a continuum that extends from normality through depressive states to schizophrenia with increasing level of severity. This study examined the hypothesis that the severity of positive psychotic symptoms increases from normality, through depression/anxiety states to clinical psychosis.
J, van Os +6 more
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Inflammatory evidence for the psychosis continuum model
Psychoneuroendocrinology, 2016Inflammation and immune activation have been implicated in the pathophysiology of severe mental disorders. Previous studies of inflammatory markers, however, have been limited with somewhat inconsistent results.We aimed to determine the effect sizes of inflammatory marker alterations across diagnostic groups of the psychosis continuum and investigate ...
Ragni H, Mørch +14 more
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Overconfidence across the psychosis continuum: a calibration approach
Cognitive Neuropsychiatry, 2016An 'overconfidence in errors' bias has been consistently observed in people with schizophrenia relative to healthy controls, however, the bias is seldom found to be associated with delusional ideation. Using a more precise confidence-accuracy calibration measure of overconfidence, the present study aimed to explore whether the overconfidence bias is ...
Ryan P. Balzan +3 more
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Polygenic risk score and the psychosis continuum model
Acta Psychiatrica Scandinavica, 2014ObjectiveSchizophrenia (SZ) and bipolar disorder (BD) are heritable, polygenic disorders with shared clinical characteristics and genetic risk indicating a psychosis continuum. This is the first study using polygenic risk score (PGRS) to investigate the localization of diagnostic subcategories along the entire psychosis spectrum.MethodBased on results ...
M, Tesli +7 more
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Sensory prediction errors in the continuum of psychosis
Schizophrenia Research, 2018Sensory prediction errors are fundamental brain responses that signal a violation of expectation in either the internal or external sensory environment, and are therefore crucial for survival and adaptive behaviour. Patients with schizophrenia show deficits in these internal and external sensory prediction errors, which can be measured using ...
R. Randeniya +2 more
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The psychosis continuum and categorical versus dimensional diagnostic approaches
Current Psychiatry Reports, 2009This overview briefly presents recent thinking on the dimensional approach to understanding psychotic experiences. First, evidence is provided for a continuum of psychosis ranging from self-reported infrequent psychotic symptoms in the general population, to schizotypal traits, to schizotypal personality disorder, and finally to full-blown psychosis ...
Michelle L, Esterberg +1 more
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