Janssens M, Boyette LL, Heering HD, Bartels-Velthuis AA, Lataster T, Schizophr. Res. 2016 Jul;174(1-3):177-82 PMID: 27157801 Abstract The proneness-persistence-impairment (PPI) model states that psychotic experiences are more likely to lead to impairment if their expression becomes persistent. Higher genetic risk for psychosis is known to affect proneness and persistence of subclinical positive symptoms. Less is known about potential effects of …
Cognitive Performance and Long-Term Social Functioning in Psychotic Disorder: A Three-Year Follow-Up Study
Simons CJ, Bartels-Velthuis AA, Pijnenborg GH, PLoS ONE 2016;11(4):e0151299 PMID: 27082629 Abstract OBJECTIVE: Studies have linked cognitive functioning to everyday social functioning in psychotic disorders, but the nature of the relationships between cognition, social cognition, symptoms, and social functioning remains unestablished. Modelling the contributions of non-social and social cognitive ability in the prediction of social functioning may help in more …
Disturbed Experience of Self: Psychometric Analysis of the Self-Experience Lifetime Frequency Scale (SELF)
Heering HD, Goedhart S, Bruggeman R, Cahn W, de Haan L, Kahn RS, Meijer CJ, Myin-Germeys I, van Os J, Wiersma D Psychopathology 2016;49(2):69-76 PMID: 26992167 Abstract BACKGROUND: Schizophrenia is characterized by positive and negative symptoms, but recently anomalous self-experiences, e.g. exaggerated self-consciousness (hyperreflectivity), receive more attention as an important symptom domain in schizophrenia patients. The semi-structured interview, the Examination …
The prevalence of visual hallucinations in non-affective psychosis, and the role of perception and attention
van Ommen MM, van Beilen M, Cornelissen FW, Smid HG, Knegtering H, Aleman A, van Laar T, Psychol Med 2016 Jun;46(8):1735-47 PMID: 26984533 Abstract BACKGROUND: Little is known about visual hallucinations (VH) in psychosis. We investigated the prevalence and the role of bottom-up and top-down processing in VH. The prevailing view is that VH are probably related to altered top-down …
Longitudinal association between cognitive performance and obsessive-compulsive symptoms in patients with psychosis and unaffected siblings
Schirmbeck F, Swets M, Meijer CJ, Zink M, de Haan L, Acta Psychiatr Scand 2016 May;133(5):399-409 PMID: 26861535 Abstract OBJECTIVE: Obsessive-compulsive symptoms (OCS) frequently occur in psychotic disorders. Cross-sectional associations between OCS and cognitive impairment have led to different causal explanations. Whereas one assumes that higher cognitive impairment reflects a risk factor for psychotic patients to develop OCS, another suggests …
Social functioning in patients with a psychotic disorder and first rank symptoms
Heering HD, van Haren NE, Psychiatry Res 2016 Mar;237:147-52 PMID: 26892072 Abstract There have been suggestions that a sense of self emerges through social interaction, which requires an intact capability to distinguish self from others. Here we investigated the contribution of first rank delusions and hallucinations, i.e. symptom expressions of a disturbed sense of self, to social functioning in patients …
Metabolic syndrome in schizophrenia patients associated with poor premorbid school performance in early adolescence
de Nijs J, Pet MA, Acta Psychiatr Scand 2016 Apr;133(4):289-97 PMID: 26558719 Abstract OBJECTIVE: More than 40% of patients with schizophrenia have an additional diagnosis of the metabolic syndrome (MS), possibly related to poor cognition. This study investigated premorbid and current cognitive functioning in schizophrenia and co-occurrence of MS. METHOD: A total of 104 participants with schizophrenia with MS and …