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While several studies have determined the Beck Cognitive Insight Scale (BCIS; [Beck, A.T., Baruch, E., Balter, J.M., Steer, R.A., Warman, D.M., 2004. A new instrument for measuring insight: The Beck Cognitive Insight Scale. Schizophr. Res. 68, 319-329] is a useful measure of cognitive insight, a number of questions have remained unanswered. While(More)
BACKGROUND The goal of this study was to determine associations between the age of first menstrual period (menarche) and adverse childhood experiences in a random community sample of New Zealand women. Previous reports have linked early menarche to absence of a live-in father figure and to family conflict, as well as genetic determination of early puberty(More)
The present study investigated whether those who are delusion-prone demonstrate a jumping to conclusions reasoning bias similar to that demonstrated by those with active delusions in previous studies. Two hundred individuals, none of whom had a psychotic disorder, were assessed for delusion-proneness and engaged in two probabilistic reasoning tasks, one(More)
An increasing number of studies have used the Beck Cognitive Insight Scale (BCIS) to understand the reasoning of individuals with psychotic disorders. Less is known, however, about "normal" levels of insight and how non-psychiatric individuals compare to those with psychosis. The present study examined the structure of the BCIS in a non-psychiatric(More)
The present study examined the jumping to conclusions reasoning bias across the continuum of delusional ideation by investigating individuals with active delusions, delusion prone individuals, and non-delusion prone individuals. Neutral and highly self-referent probabilistic reasoning tasks were employed. Results indicated that individuals with delusions(More)
The present study investigated the relationship between delusion proneness, as assessed using the Peters et al. Delusions Inventory [Peters, E.R., Joseph, S.A., Garety, P.A., 1999. The measurement of delusional ideation in the normal population: Introducing the PDI (Peters et al. Delusions Inventory). Schizophr. Bull. 25 553-576], and cognitive insight, as(More)
The chromosomes of the lymphocytes of 208 subjects have been analysed in order to determine the relationship between age, sex and aneuploidy. The subjects consisted of 111 females and 34 males all over 65 years and 31 females and 32 males aged between 18 and 32 years. The degree of hypodiploidy (chromosome loss) differs significantly between the elderly and(More)
Research suggests that many with schizophrenia experience a range of deficits in metacognition including difficulties recognizing the emotions and intentions of others as well as reflecting upon and questioning their own thinking. Unclear, however, is the extent to which these deficits are stable over time, how closely related they are to one another and(More)
A study has been made of aneuploidy in the cultured lymphocytes of senile dements (46 females and 8 males), arteriosclerotic dements (10 females and 8 males) and normal geriatric controls (55 females and 18 males). Contrary to previous reports of senile dements having a higher degree of hypodiploidy (chromosome loss) than age-matched controls, there were no(More)
The present study was an examination of global self-esteem and various types of unusual beliefs in a nonclinical population. Individuals with no history of psychotic disorder (N = 121) completed a measure of delusion-proneness and also a measure of self-esteem. Results indicated high delusion prone individuals had lower self-esteem than low delusion prone(More)