Personality dimensions, schizotypal and borderline personality traits and psychosis proneness

Muntaner, Carles; Garcia-Sevilla, L.; Fernández, Alberto; Torrubia, Rafael

doi:10.1016/0191-8869(88)90087-6

Cited by 120 publications

(62 citation statements)

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“…At least that of non-additive genetic effects does make an explicit prediction of the MZ/DZ relative magnitudes which turns out to be consistent with the data. An even more convincing rationale concerns the relationship of SAN to Eysenck's extraversion, discussed by Muntaner et al (1988) and confirmed here by the high loadings in Table 6. Extraversion is the one personality dimension where genetic dominance has previously been identified (Eaves et al, 1989) although the magnitude of the effect was not as large or unambiguous as that observed here.…”

Section: Discussionmentioning

confidence: 77%

“…Given the small intra-individual correlations between the scales, the co-twin correlations were so small (even in MZ twins) that analysis was impractical. Muntaner et al (1988) has made explicit predictions of how the dimensions of the EPQ should relate to the psychosis-proneness scales. Table 6 shows such predictions are confirmed with these scales.…”

Section: Genetic Analysis Of the Four Psychosis Proneness Scalesmentioning

confidence: 99%

“…The concept of psychosis-proneness attracts ever more attention, despite the ongoing debate as to whether responses to such self-report questionnaires should be viewed as subclinical manifestations of psychopathology (Hewitt & Claridge, 1989) or as dimensions of personality (Muntaner et al, 1988). This is part of the wider debate over the dimensional or categorical view of mental illness (Claridge, 1987(Claridge, , 1994Kendler, 1985).…”

mentioning

confidence: 99%

“…Kendler and Hewitt (1992) identified a "Nonconformity" factor which included P, PAN and Chapman's IMP, while SA was part of an independent factor with Eysenck's Extroversion (E) loading in the opposite direction. Claridge and Hewitt (1987) reported Claridge's STQ correlated from 0.6 to 0.7 (depending on the exact analysis) with Neuroticism (N) and 0.2 to 0.4 with P. The most complete proposal of how N, P and E relate to the dimensions of psychosis-proneness (Muntaner et al, 1988) has the positive symptoms relating to N and the negative (anhedonia) ones inversely to E. Psychoticism (P) loads on Claridge's STB (Borderline Personality Disorder) and presumably also on IMP. Such a result is consistent with a ten year longitudinal study of P which showed no higher rates of psychosis in these individuals or their relatives, but rather higher rates of antisocial behavior and higher scores on dimensions of schizotypal and paranoid personality disorder (Kwapil et al, 1997).…”

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confidence: 99%

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Phenotypic and Genetic Analyses of a Short Measure of Psychosis-proneness in a Large-scale Australian Twin Study

et al. 2001

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Previous genetic analyses of psychosis proneness have been limited by their small sample size. For the purposes of large-scale screening, a 12-item questionnaire was developed through a two-stage process of reduction from the full Chapman and Chapman scales. 3685 individuals (including 1438 complete twin pairs) aged 18–25 years and enrolled in the volunteer Australian Twin Registry returned a mail questionnaire which included this psychosis proneness scale and the Eysenck Personality Questionnaire. Despite the brevity of the questionnaire, item and factor analysis identified four unambiguous and essentially uncorrelated scales. There were (1) Perceptual Aberration – Magical Ideation; (2) Hypomania – Impulsivity/Nonconformity; (3) Social Anhedonia and (4) Physical Anhedonia. Model-fitting analyses showed additive genetic and specific environmental factors were sufficient for three of the four scales, with the Social Anhedonia scale requiring also a parameter for genetic dominance. There was no evidence for the previously hypothesised sex differences in the genetic determination of psychosis-proneness. The potential value of multivariate genetic analysis to examine the relationship between these four scales and dimensions of personality is discussed. The growing body of longitudinal evidence on psychosis-proneness suggests the value of incorporating this brief measure into developmental twin studies.

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Section: Discussionmentioning

confidence: 77%

Section: Genetic Analysis Of the Four Psychosis Proneness Scalesmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Phenotypic and Genetic Analyses of a Short Measure of Psychosis-proneness in a Large-scale Australian Twin Study

et al. 2001

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“…Fernandez, 1990). According to Claridge et al (1996), the most consistent finding has been the emergence of a schizotypal trait factor corresponding to positive symptoms (such as magical ideation, perceptual aberration, hallucinations, and delusions), another factor relating to perceptual-cognitive aspects (Raine & Allbutt, 1989), a factor corresponding to negative symptoms (e.g., lack of logical thought, lack of appropriate affect, physical and social anhedonia), and a factor relating to nonconformity or antisocial tendencies (Kendler & Hewitt, 1992;Muntaner, Garcia-Sevilla, Fernandez, & Torrubia, 1988;Venables & Bailes, 1994;Venables, Wilkins, Michell, Raine, & Bailes, 1990).…”

Section: Introductionmentioning

confidence: 99%

Schizotypal personality traits: An extension of previous psychometric investigations

Boyle

1998

Australian Journal of Psychology

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In an exploratory scale factor analysis of the Combined Schizotypal Traits Questionnaire, Claridge et al. (1996) reported four schizotypal trait dimensions, which they labelled Aberrant Perceptions and Beliefs, Cognitive Disorganisation with Anxiety, Introvertive Anhedonia, and Asocial Behaviour. The present paper reports the findings of a further examination of both scale and item factor analyses, and proposes an alternative five-factor model. Positive and negative schizotypal trait factors emerged separately from general personality factors pertaining to extraversion, neuroticism, and psychoticism, showing that schizotypal traits cannot simply be reduced to the Eysenckian personality dimensions. The positive schizotypal factor also exhibited strong loadings on measures of delusions, suggesting that delusional cognition is a major component of schizotypal personality. The present five-factor model (supported by LISREL confirmatory factor analyses) may have important implications for future research into and clinical assessment of schizotypal personality traits.

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Schizotypal Symptoms and Signs in the Roscommon Family Study

Kendler

McGuire²,

Gruenberg³

et al. 1995

Arch Gen Psychiatry

230

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"Schizotypy" is a complex, multidimensional clinical construct, whose various dimensions differ widely both in the degree and specificity with which they reflect the familial liability to schizophrenia. Subpsychotic thought disorder; negative schizotypal signs, such as poor rapport and odd behavior; deficient occupational functioning; and social isolation/avoidance best characterized relatives of schizophrenic probands compared with relatives of matched controls.

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Personality dimensions, schizotypal and borderline personality traits and psychosis proneness

Cited by 120 publications

References 70 publications

Phenotypic and Genetic Analyses of a Short Measure of Psychosis-proneness in a Large-scale Australian Twin Study

Phenotypic and Genetic Analyses of a Short Measure of Psychosis-proneness in a Large-scale Australian Twin Study

Schizotypal personality traits: An extension of previous psychometric investigations

Schizotypal Symptoms and Signs in the Roscommon Family Study

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