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Schizotypal traits in adolescents: Links to family history of psychosis and psychological distress

Published online by Cambridge University Press:  08 September 2012

M. Cella ,
M. Serra ,
A. Lai ,
O.J. Mason ,
D. Sisti ,
M.B.L. Rocchi ,
A. Preti  and
D.R. Petretto
M. Cella
Affiliation:
Department of Psychology, Institute of Psychiatry, King's College London, De Crespigny Park, London, SE5 8AF, UK
M. Serra
Affiliation:
Clinical Psychology Unit, Department of Psychology, University of Cagliari, 09123Cagliari, Italy
A. Lai
Affiliation:
Clinical Psychology Unit, Department of Psychology, University of Cagliari, 09123Cagliari, Italy
O.J. Mason
Affiliation:
Department of Clinical Educational and Health Psychology, University College London, 1-19 Torrington Place, London WC1 N 6BT, UK
D. Sisti
Affiliation:
Institute of Biomathematics. Polo Scientifico - Loc. Crocicchia, University of Urbino, 61029Urbino, Italy
M.B.L. Rocchi
Affiliation:
Institute of Biomathematics. Polo Scientifico - Loc. Crocicchia, University of Urbino, 61029Urbino, Italy
A. Preti*
Affiliation:
Clinical Psychology Unit, Department of Psychology, University of Cagliari, 09123Cagliari, Italy Centro Medico Genneruxi, via Costantinopoli 42, 09129Cagliari, Italy
D.R. Petretto
Affiliation:
Clinical Psychology Unit, Department of Psychology, University of Cagliari, 09123Cagliari, Italy
*
⁎Corresponding author. Tel.: +39 70 480922. E-mail address: [email protected] (A. Preti).
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Abstract

Objective

Studies in the general population report that unusual subjective experiences are relatively common. Such experiences have been conceptualized either as extreme personality traits or as vulnerability markers for psychosis, and often grouped under the expression “schizotypal experiences”. This study investigates the heterogeneity of schizotypal traits using factor and latent class analysis.

Methods

One thousand and thirty-two adolescents were recruited for this study. Schizotypal experiences were assessed with the Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE); psychological distress was assessed with the General Health Questionnaire (GHQ). Confirmatory Factorial Analysis (CFA) and Latent Class Analysis (LCA) were performed on the O-LIFE and on the association with the GHQ and demographic variables.

Results

CFA replicated the original 4-factor structure of the O-LIFE. Three latent classes (LC) of schizotypal features were identified: participants in LC1 (26% of the total sample) showed minimal level of item endorsement; LC2 accounted for 52% of the sample and showed overall higher item endorsement compared to LC1, especially for disorganization and positive signs of schizotypy, but not for negative affective items. LC3 (22%) showed an overall higher level of item endorsement across schizotypal dimensions, and positive association with psychological distress and family history of psychosis.

Discussion

Different latent class of schizotypal features can be empirically defined in adolescent community samples. The most extreme class is defined not only by a profile of higher positive replies to the items, but also by anhedonia, high psychological distress, and family history of psychosis. These findings can inform prevention research in schizophrenia.

Keywords

Psychotic-like experiencesSchizotypyPsychosisRisk factorsFamily history of psychosis
Type
Original article
Information
European Psychiatry , Volume 28 , Issue 4 , May 2013 , pp. 247 - 253
Copyright
Copyright © European Psychiatric Association 2012

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References

Akaike, H.Factor Analysis and AIC. Psychometrika 1987;52:317–332.CrossRefGoogle Scholar
Alvarez-Moya, E.M.Barrantes-Vidal, N.Navarro, J.B.Subira, S.Obiols, J.E.Exophenotypical profile of adolescents with sustained attention deficit: A 10-year follow-up study. Psychiatry Res 2007;153:119–130.CrossRefGoogle ScholarPubMed
American Psychiatric Association. Diagnostic and statistical manual of mental disorders (4th ed, text revision). Washington, DC: American Psychiatric Association; 2000.Google Scholar
Barrantes-Vidal, N.Lewandowski, K.E.Kwapil, T.R.Psychopathology, social adjustment and personality correlates of schizotypy clusters in a large nonclinical sample. Schizophr Res 2010;122:219–225.CrossRefGoogle Scholar
Bentler PM. EQS 6.1 Structural equations program manual. Encino, CA: Multivariate Software; 2008.Google Scholar
Blanchard, J.J.Collins, L.M.Aghevli, M.Leung, W.W.Cohen, A.S.Social anhedonia and schizotypy in a community sample: the Maryland longitudinal study of schizotypy. Schizophr Bull 2011;37:587–602.CrossRefGoogle Scholar
Brennan, P.Silman, A.Statistical methods for assessing observer variability in clinical measures. Br Med J 1992;304:1491–1494.CrossRefGoogle ScholarPubMed
Browne, M.W.Cudeck, R.Alternative ways of assessing model fit. Bollen, K.A.Long, J.S., editors. Testing Structural Equation Models Newbury Park, CA: Sage; 1993 p. 136–161.Google Scholar
Byrne, B.M.A primer of LISREL: Basic applications and programming for confirmatory factor analytic models. New York, NY: Springer-Verlag; 1989.CrossRefGoogle Scholar
Chapman, L.J.Chapman, J.P.Kwapil, T.R.Eckblad, M.Zinser, M.C.Putatively psychosis-prone subjects 10 years later. J Abnorm Psychol 1994;103:171–183.CrossRefGoogle ScholarPubMed
Chapman, L.J.Chapman, J.P.Raulin, M.L.Body image aberration in schizophrenia. J Abnorm Psychol 1978;87:399–407.CrossRefGoogle Scholar
Chapman, L.J.Chapman, J.P.Raulin, M.L.Scales for physical and social anhedonia. J Abnorm Psychol 1976;85:374–382.CrossRefGoogle ScholarPubMed
Claridge, G.Schizotypy: Implications for illness and health. New York: NY Oxford University Press; 1997.CrossRefGoogle Scholar
Claridge, G.S.McCreery, C.Mason, O.Bentall, R.Boyle, G.J.Slade, P.Popplewell, D.The factor structure of schizotypal traits: A large replication study. Br J Clin Psychol 1996;35:103–115.CrossRefGoogle ScholarPubMed
Cliff, N.Dominance statistics: Ordinal Analyses to Answer Ordinal Questions. Psychol Bull 1993;114:494–509.CrossRefGoogle Scholar
Cochrane, M.Petch, I.Pickering, A.D.Do measures of schizotypal personality provide non-clinical analogues of schizophrenic symptomatology. Psychiatry Res 2010;176:150–154.CrossRefGoogle ScholarPubMed
Cohen, A.S.Matthews, R.A.Najolia, G.M.Brown, L.A.Toward a more psychometrically sound brief measure of schizotypal traits: introducing the SPQ-Brief Revised. J Pers Disord 2010;24:516–537.CrossRefGoogle Scholar
Eckblad, M.L.Chapman, L.J.Magical ideation as an indicator of schizotypy. J Consult Clin Psychol 1983;51:215–225.CrossRefGoogle ScholarPubMed
Eysenck, H.J.Eysenck, S.B.G.Manual of the Eysenck Personality Questionnaire. London, UK: Hodder and Stroughton; 1975.Google Scholar
Fonseca-Pedrero, E.Lemos-Giráldez, S.Paino, M.Schizotypy, Muñiz J.emotional-behavioural problems and personality disorder traits in a non-clinical adolescent population. Psychiatry Res 2011;190:316–321.CrossRefGoogle Scholar
Foulds, G.A.Bedford, A.Hierarchy of classes of personal illness. Psychol Med 1975;5:181–192.CrossRefGoogle ScholarPubMed
Goldberg, D.P.The detection of psychiatric illness by questionnaire. London, UK: Oxford University Press; 1972.Google Scholar
Goodarzi, M.A.Wykes, T.Hemsley, D.R.Cerebral lateralization of global-local processing in people with schizotypy. Schizophr Res 2000;45:115–121.CrossRefGoogle ScholarPubMed
Guttman, L.A basis for analyzing test-retest reliability. Psychometrika 1945;10:255–282.CrossRefGoogle ScholarPubMed
Horan, W.P.Blanchard, J.J.Gangestad, S.W.Kwapil, T.R.The psychometric detection of schizotypy: do putative schizotypy indicators identify the same latent class. J Abnorm Psychol 2004;113:339–357.CrossRefGoogle ScholarPubMed
Hu, L.Bentler, P.M.Cutoff criteria for fit indices in covariance structure analysis: Conventional criteria versus new alternatives. Struct Equ Modeling 1999;6:1–55.CrossRefGoogle Scholar
Katki, H.A.Invited commentary: Evidence-based evaluation of p values and Bayes factor. Am J Epidemiology 2008;168:384–388.CrossRefGoogle Scholar
Kendler, K.S.Diagnostic approaches to schizotypal personality disorder: A historical perspective. Schizophr Bull 1985;11:538–555.CrossRefGoogle ScholarPubMed
Kety, S.S.Rosenthal, D.Wender, P.H.Schulsinger, F.The types and prevalence of mental illness in the biological and adoptive families of adopted schizophrenics. Rosenthal, D., editors. The transmission of schizophrenia Oxford: Pergamon Press; 1968 p. 345–362.Google Scholar
Kwapil, T.R.Social anhedonia as a predictor of the development of schizophrenia-spectrum disorders. J Abnorm Psychol 1998;107:558–565.CrossRefGoogle ScholarPubMed
Launay, G.Slade, P.The measurement of hallucinatory predisposition in male and female prisoners. Pers Indiv Differ 1981;2:221–234.CrossRefGoogle Scholar
Lazarsfeld, P.Henry, N.Latent Structure Analysis. New York, NY: Houghton Mifflin; 1968.Google Scholar
Lenzenweger, M.F.Korfine, L.Confirming the latent structure and base rate of schizotypy: a taxometric analysis. J Abnorm Psychol 1992;101:567–571.CrossRefGoogle ScholarPubMed
Lenzenweger, M.F.McLachlan, G.Rubin, D.B.Resolving the latent structure of schizophrenia endophenotypes using expectation-maximization-based finite mixture modeling. J Abnorm Psychol 2007;116:16–29.CrossRefGoogle ScholarPubMed
Lo, N.Mendell, N.R.Rubin, D.B.Testing the number of components in a normal mixture. Biometrika 2001;88:767–778.CrossRefGoogle Scholar
Mason, O.Claridge, G.Jackson, M.New scales for the assessment of schizotypy. Pers Individ Differ 1995;18:7–13.CrossRefGoogle Scholar
Mason, O.A confirmatory factor analysis of the structure of schizotypy. Eur J Pers 1995;9:271–281.CrossRefGoogle Scholar
Mason, O.Claridge, G.The Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE): further description and extended norms. Schizophr Res 2006;82:203–211.CrossRefGoogle ScholarPubMed
Mason, O.Linney, Y.Claridge, G.Short scales for measuring schizotypy. Schizophr Res 2005;78:293–296.CrossRefGoogle ScholarPubMed
McCutcheon, A.L.Latent class analysis. Beverly Hills, CA: Sage Publications; 1987.CrossRefGoogle Scholar
Meehl, P.E.Schizotaxia, schizotypy, schizophrenia. Am Psychol 1962;17:827–838.CrossRefGoogle Scholar
Mishlove, M.Chapman, L.J.Social anhedonia in the prediction of psychosis proneness. J Abnorm Psychol 1985;94:394–396.CrossRefGoogle ScholarPubMed
Muthén, L.Muthén, B.O.Mplus The comprehensive modelling program for applied researchers - Users guide. Los Angeles, CA: Muthén & Muthén; 2004.Google Scholar
Nunnally, J.C.Psychometric Theory, 2nd ed. New York, NY: McGraw-Hill; 1978.Google Scholar
Politi, P.L.Piccinelli, M.Wilkinson, G.Reliability, validity and factor structure of the 12-item General Health Questionnaire among young males in Italy. Acta Psychiatr Scand 1994;90:432–437.CrossRefGoogle ScholarPubMed
Raballo, A.Parnas, J.The silent side of the spectrum: schizotypy and the schizotaxic self. Schizophr Bull 2011;37:1017–1026.CrossRefGoogle ScholarPubMed
Rado, S.Dynamics and classification of disordered behavior. Am J Psychiatry 1953;110:406–416.CrossRefGoogle ScholarPubMed
Raine, A.Schizotypal personality: Neurodevelopmental and psychosocial trajectories. Ann Rev Clin Psychol 2006;2:291–326.CrossRefGoogle ScholarPubMed
Rawlings, D.Goldberg, M.Correlating a measure of sustained attention with a multidimensional measure of schizotypal traits. Pers Individ Differ 2001;31:421–431.CrossRefGoogle Scholar
Schwarz, G.Estimating the dimension of a model. Ann Stat 1978;6:461–464.CrossRefGoogle Scholar
Sclove, S.L.Application of model-selection criteria to some problems in multivariate analysis. Psychometrika 1987;52:333–343.CrossRefGoogle Scholar
Sijtsma, K.On the use, the misuse, and the very limited usefulness of Cronbach's alpha. Psychometrika 2009;74:107–120.CrossRefGoogle ScholarPubMed
Tanaka, J.S.Multifaceted conceptions of fit in structural equation models. Bollen, K.A.Long, J.S., editors. Testing structural equation models Newbury Park: CA Sage; 1993 p. 10–39.Google Scholar
Tarbox, S.I.Pogue-Geile, M.F.A multivariate perspective on schizotypy and familial association with schizophrenia: A review. Clin Psychol Rev 2011;31:1169–1182.CrossRefGoogle ScholarPubMed
Tsakanikos, E.Reed, P.Visuo-spatial processing and dimensions of schizotypy: Figure-ground segregation as a function of psychotic-like features. Pers Individ Differ 2003;35:703–712.CrossRefGoogle Scholar
van Os, J.Linscott, R.J.Myin-Germeys, I.Delespaul, P.Krabbendam, L.A systematic review and meta-analysis of the psychosis continuum: evidence for a psychosis proneness–persistence–impairment model of psychotic disorder. Psychol Med 2009;39:179–195CrossRefGoogle ScholarPubMed
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