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Randomized control trial to assess the efficacy of metacognitive training compared with a psycho-educational group in people with a recent-onset psychosis

Published online by Cambridge University Press:  07 February 2017

S. Ochoa*
Affiliation:
Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
R. López-Carrilero
Affiliation:
Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain Fundació Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain
M. L. Barrigón
Affiliation:
Department of Psychiatry, IIS-Fundación Jiménez Díaz Hospital, Madrid, Spain Psychiatry Service, Area de Gestión Sanitaria Sur Granada, Motril, Granada, Spain
E. Pousa
Affiliation:
Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain Salut Mental Parc Taulí, Sabadell (Barcelona), Hospital Universitari – UAB Universitat Autònoma de Barcelona, Neuropsiquiatria i Addicions, Hospital del Mar, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
A. Barajas
Affiliation:
Centre d'Higiene Mental Les Corts, Barcelona, Spain Departament de Psicologia Clínica i de la Salut, Facultat de Psicologia, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
E. Lorente-Rovira
Affiliation:
Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain Psychiatry Service, Hospital Clínico Universitario de Valencia, Spain
F. González-Higueras
Affiliation:
Comunidad Terapéutica Jaén Servicio Andaluz de Salud, Jaén, Spain
E. Grasa
Affiliation:
Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain Department of Psychiatry, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica-Sant Pau (IIB-Sant Pau), Universitat Autònoma de Barcelona, Spain
I. Ruiz-Delgado
Affiliation:
Unidad de Salud Mental Comunitaria Malaga Norte, UGC Salud Mental Carlos Haya, Servicio Andaluz de Salud Málaga, Spain
J. Cid
Affiliation:
Mental Health & Addiction Research Group, IdiBGi. Institut d'Assistencia Sanitària, Girona, Spain
I. Birulés
Affiliation:
Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
I. Esteban-Pinos
Affiliation:
Psychiatry Service, Area de Gestión Sanitaria Sur Granada, Motril, Granada, Spain
R. Casañas
Affiliation:
Centre d'Higiene Mental Les Corts, Barcelona, Spain
A. Luengo
Affiliation:
Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain Psychiatry Service, Hospital Clínico Universitario de Valencia, Spain
P. Torres-Hernández
Affiliation:
Comunidad Terapéutica Jaén Servicio Andaluz de Salud, Jaén, Spain
I. Corripio
Affiliation:
Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain Department of Psychiatry, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica-Sant Pau (IIB-Sant Pau), Universitat Autònoma de Barcelona, Spain
M. Montes-Gámez
Affiliation:
Unidad de Salud Mental Comunitaria Malaga Norte, UGC Salud Mental Carlos Haya, Servicio Andaluz de Salud Málaga, Spain
M. Beltran
Affiliation:
Mental Health & Addiction Research Group, IdiBGi. Institut d'Assistencia Sanitària, Girona, Spain
A. De Apraiz
Affiliation:
Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain
L. Domínguez-Sánchez
Affiliation:
Psychiatry Service, Area de Gestión Sanitaria Norte de Málaga, Antequera, Málaga, Spain
E. Sánchez
Affiliation:
Centre d'Higiene Mental Les Corts, Barcelona, Spain
B. Llacer
Affiliation:
Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain Psychiatry Service, Hospital Clínico Universitario de Valencia, Spain
T. Pélaez
Affiliation:
Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
J. L. Bogas
Affiliation:
Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain
S. Moritz
Affiliation:
Department of Psychiatry and Psychotherapy, University Medical Center Hamburg, Hamburg, Germany
*
*Address for correspondence: S. Ochoa, Research and Development Unit of Parc Sanitari Sant Joan de Déu, CIBERSAM, C/Dr Antoni Pujades, 42, 08330 Sant Boi de Llobregat, Barcelona, Spain (Email: sochoa@pssjd.org)

Abstract

Background

Aims were to assess the efficacy of metacognitive training (MCT) in people with a recent onset of psychosis in terms of symptoms as a primary outcome and metacognitive variables as a secondary outcome.

Method

A multicenter, randomized, controlled clinical trial was performed. A total of 126 patients were randomized to an MCT or a psycho-educational intervention with cognitive-behavioral elements. The sample was composed of people with a recent onset of psychosis, recruited from nine public centers in Spain. The treatment consisted of eight weekly sessions for both groups. Patients were assessed at three time-points: baseline, post-treatment, and at 6 months follow-up. The evaluator was blinded to the condition of the patient. Symptoms were assessed with the PANSS and metacognition was assessed with a battery of questionnaires of cognitive biases and social cognition.

Results

Both MCT and psycho-educational groups had improved symptoms post-treatment and at follow-up, with greater improvements in the MCT group. The MCT group was superior to the psycho-educational group on the Beck Cognitive Insight Scale (BCIS) total (p = 0.026) and self-certainty (p = 0.035) and dependence self-subscale of irrational beliefs, comparing baseline and post-treatment. Moreover, comparing baseline and follow-up, the MCT group was better than the psycho-educational group in self-reflectiveness on the BCIS (p = 0.047), total BCIS (p = 0.045), and intolerance to frustration (p = 0.014). Jumping to Conclusions (JTC) improved more in the MCT group than the psycho-educational group (p = 0.021). Regarding the comparison within each group, Theory of Mind (ToM), Personalizing Bias, and other subscales of irrational beliefs improved in the MCT group but not the psycho-educational group (p < 0.001–0.032).

Conclusions

MCT could be an effective psychological intervention for people with recent onset of psychosis in order to improve cognitive insight, JTC, and tolerance to frustration. It seems that MCT could be useful to improve symptoms, ToM, and personalizing bias.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 2017 

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Footnotes

Members of the Spanish Metacognition Study Group are given in the Appendix.

References

Aghotor, J, Pfueller, U, Moritz, S, Weisbrod, M, Roesch-Ely, D (2010). Metacognitive training for patients with schizophrenia (MCT): feasibility and preliminary evidence for its efficacy. Journal of Behavior Therapy and Experimental Psychiatry 41, 207211.CrossRefGoogle ScholarPubMed
Balzan, RP, Delfabbro, PH, Galletly, CA, Woodward, TS (2014). Metacognitive training for patients with schizophrenia: preliminary evidence for a targeted, single-module programme. Australian & New Zealand Journal of Psychiatry 48, 11261136.CrossRefGoogle ScholarPubMed
Baron-Cohen, S, Wheelwright, S, Jolliffe, T (1997). Is there a ‘language of the eyes’? Evidence from normal adults and adults with autism and Asperger syndrome. Visual Cognition, 4, 311331.CrossRefGoogle Scholar
Beck, AT, Baruch, E, Balter, JM, Steer, RA, Warman, DM (2004). A new instrument for measuring insight: the beck cognitive insight scale. Schizophrenia Research 1; 68, 319329.CrossRefGoogle Scholar
Bentall, RP, Kaney, S, Dewey, ME (1991). Paranoia and social reasoning: an attribution theory analysis. British Journal of Clinical Psychology 30, 1323.CrossRefGoogle ScholarPubMed
Bentham, AM, McKay, AP, Quemada, I, Clare, L, Eastwood, N, McKenna, PJ (1996). Delusions in schizophrenia: a phenomenological and psychological exploration. Cognitive Neuropsychiatry 1, 289303.CrossRefGoogle ScholarPubMed
Besche-Richard, C, Bourrin-Tisseron, A, Olivier, M, Cuervo-Lombard, CV, Limosin, F (2012). Recognition of facial emotions and theory of mind in schizophrenia: could the theory of mind deficit be due to the non-recognition of facial emotions? Encephale 38, 241247.CrossRefGoogle Scholar
Bora, E, Pantelis, C (2013). Theory of mind impairments in first-episode psychosis, individuals at ultra-high risk for psychosis and in first-degree relatives of schizophrenia: systematic review and meta-analysis. Schizophrenia Research 144, 3136.CrossRefGoogle ScholarPubMed
Breitborde, NJ, Srihari, VH, Woods, SW (2009). Review of the operational definition for first-episode psychosis. Early Intervention in Psychiatry 3, 259265.CrossRefGoogle ScholarPubMed
Brett-Jones, J, Garety, PA, Hemsley, D (1987). Measuring delusional experiences: a method and its application. British Journal of Clinical Psychology 26, 257265.CrossRefGoogle ScholarPubMed
Calvete, E, Cardeñoso, O (2001). Creencias, resolución de problemas sociales y correlatos psicológicos. Psicothema 13, 95100.Google Scholar
Conway, CR, Bollini, A, Graham, BG, Keefe, RSE, Schiffman, SS, McEvoy, JP (2002). Sensory acuity and reasoning in delusional disorder. Comprehensive Psychiatry 43, 7578.CrossRefGoogle ScholarPubMed
Corcoran, R, Mercer, G, Frith, CD (1995). Schizophrenia, symptomatology and social inference: investigating “theory of mind” in people with schizophrenia. Schizophrenia Research 17, 513.CrossRefGoogle Scholar
Eichner, C, Berna, F (2016). Acceptance and efficacy of Metacognitive Training (MCT) on Positive Symptoms and delusions in patients with schizophrenia: a meta-analysis taking into account important moderators. Schizophrenia Bulletin 42, 952962.CrossRefGoogle ScholarPubMed
Endincott, J (1976). The Global Assessment Scale: a procedure for measuring overall severity of psychiatric disturbance. Archives of General Psychiatry 33, 766771.CrossRefGoogle Scholar
Erawati, E, Keliat, BA, Helena, N, Hamid, A (2014). The influence of metacognitive training on delusion severity and metacognitive ability in schizophrenia. Journal of Psychiatric and Mental Health Nursing 21, 841847.CrossRefGoogle ScholarPubMed
Dudley, R, Taylor, P, Wickham, S, Hutton, P (2016). Psychosis, delusions and the ‘Jumping to Conclusions’ reasoning bias: a systematic review and meta-analysis. Schizophrenia Bulletin 42, 652665.CrossRefGoogle Scholar
Falcone, MA, Murray, RM, O'Connor, JA, Hockey, LN, Gardner-Sood, P, Di Forti, M, Freeman, D, Jolley, S (2015 a). Jumping to conclusions and the persistence of delusional beliefs in first episode psychosis. Schizophrenia Research 165, 243246.CrossRefGoogle ScholarPubMed
Falcone, MA, Murray, RM, Wiffen, BD, O'Connor, JA, Russo, M, Kolliakou, A, Stilo, S, Taylor, H, Gardner-Sood, P, Paparelli, A, Jichi, F, Di Forti, M, David, AS, Freeman, D, Jolley, S (2015 b). Jumping to conclusions, neuropsychological functioning, and delusional beliefs in first episode psychosis. Schizophrenia Bulletin 41, 411418.CrossRefGoogle ScholarPubMed
Favrod, J, Rexhaj, S, Bardy, S, Ferrari, P, Hayoz, C, Moritz, S, Conus, P, Bonsack, C (2014). Sustained antipsychotic effect of metacognitive training in psychosis: a randomized-controlled study. European Psychiatry 29, 275281.CrossRefGoogle ScholarPubMed
Fornells-Ambrojo, M, Garety, PA (2009). Understanding attributional biases, emotions and self-esteem in ‘poor me’ paranoia: findings from an early psychosis sample. British Journal of Clinical Psychology 48, 141162.CrossRefGoogle ScholarPubMed
Garety, PA, Freeman, D, Jolley, S, Dunn, G, Bebbington, PE, Fowler, DG, Kuipers, E, Dudley, R (2005). Reasoning, emotions, and delusional conviction in psychosis. Journal of Abnormal Psychology 114, 373384.CrossRefGoogle ScholarPubMed
Garety, PA, Hemsley, DR, Wessely, S (1991). Reasoning in deluded schizophrenic and paranoid patients. Biases in performance of a probabilistic reasoning task. Journal of Nervous and Mental Disease 179, 194201.CrossRefGoogle Scholar
Gawęda, Ł, Krężołek, M, Olbryś, J, Turska, A, Kokoszka, A (2015). Decreasing self-reported cognitive biases and increasing clinical insight through meta-cognitive training in patients with chronic schizophrenia. Journal of Behavior Therapy and Experimental Psychiatry 48, 98104.CrossRefGoogle ScholarPubMed
Gil, D, Fernández-Modamio, M, Bengochea, R, Arrieta, M (2012). Adaptation of the Hinting Task theory of the mind test to Spanish. Revista de Psiquiatría y Salud Mental 5, 7988.CrossRefGoogle ScholarPubMed
Green, MF, Bearden, CE, Cannon, TD, Fiske, AP, Hellemann, GS, Horan, WP, Kee, K, Kern, RS, Lee, J, Sergi, MJ, Subotnik, KL, Sugar, CA, Ventura, J, Yee, CM, Nuechterlein, KH (2012). Social cognition in schizophrenia, Part 1: performance across phase of illness. Schizophrenia Bulletin 38, 854864.CrossRefGoogle ScholarPubMed
Gustavsson, A, Svensson, M, Jacobi, F, Allgulander, C, Alonso, J, Beghi, E, Dodel, R, Ekman, M, Faravelli, C, Fratiglioni, L, Gannon, B, Jones, DH, Jennum, P, Jordanova, A, Jönsson, L, Karampampa, K, Knapp, M, Kobelt, G, Kurth, T, Lieb, R, Linde, M, Ljungcrantz, C, Maercker, A, Melin, B, Moscarelli, M, Musayev, A, Norwood, F, Preisig, M, Pugliatti, M, Rehm, J, Salvador-Carulla, L, Schlehofer, B, Simon, R, Steinhausen, HC, Stovner, LJ, Vallat, JM, Van den Bergh, P, van Os, J, Vos, P, Xu, W, Wittchen, HU, Jönsson, B, Olesen, J CDBE2010Study Group (2011). Cost of disorders of the brain in Europe 2010. European Neuropsychopharmacology 21, 718779.CrossRefGoogle ScholarPubMed
Gutiérrez-Zotes, JA, Valero, J, Cortés, MJ, Labad, A, Ochoa, S, Ahuir, M, Carlson, J, Bernardo, M, Cañizares, S, Escartin, G, Cañete, J, Gallo, P, Salamero, M (2012). Spanish adaptation of the Beck Cognitive Insight Scale (BCIS) for schizophrenia. Actas Españolas de Psiquiatría 40, 29.Google ScholarPubMed
Kaney, S, Bentall, RP (1992). Persecutory delusions and the self-serving bias. Evidence from a contingency judgment task. Journal of Nervous and Mental Disease 180, 773780.CrossRefGoogle ScholarPubMed
Kay, SR, Fizbein, A, Opler, LA (1987). The positive and negative syndrome scale (PANSS) for schizophrenia. Schizophrenia Bulletin 13, 261276.CrossRefGoogle ScholarPubMed
Kinderman, P, Bentall, RP (1996). A new measure of causal locus: the internal, personal and situational attributions questionnaire. Personality and Individual Differences 20, 261264.CrossRefGoogle Scholar
Lam, KC, Ho, CP, Wa, JC, Chan, SM, Yam, KK, Yeung, OS, Wong, WC, Balzan, RP (2015). Metacognitive training (MCT) for schizophrenia improves cognitive insight: a randomized controlled trial in a Chinese sample with schizophrenia spectrum disorders. Behaviour Research and Therapy 64, 3842.CrossRefGoogle Scholar
Langdon, R, Still, M, Connors, MH, Ward, PB, Catts, SV (2014). Theory of mind in early psychosis. Early Intervention in Psychiatry 8, 286290.CrossRefGoogle ScholarPubMed
Lysaker, PH, Kukla, M, Dubreucq, J, Gumley, A, McLeod, H, Vohs, JL, Buck, KD, Minor, KS, Luther, L, Leonhardt, BL, Belanger, EA, Popolo, R, Dimaggio, G (2015). Metacognitive deficits predict future levels of negative symptoms in schizophrenia controlling for neurocognition, affect recognition, and self-expectation of goal attainment. Schizophrenia Research 168, 267272.CrossRefGoogle ScholarPubMed
Martin, JA, Penn, DL (2002). Attributional style in schizophrenia: an investigation in outpatients with and without persecutory delusions. Schizophrenia Bulletin 28, 131141.CrossRefGoogle ScholarPubMed
Mehl, S, Landsberg, MW, Schmidt, AC, Cabanis, M, Bechdolf, A, Herrlich, J, Loos-Jankowiak, S, Kircher, T, Kiszkenow, S, Klingberg, S, Kommescher, M, Moritz, S, Müller, BW, Sartory, G, Wiedemann, G, Wittorf, A, Wölwer, W, Wagner, M (2014). Why do bad things happen to me? Attributional style, depressed mood, and persecutory delusions in patients with schizophrenia. Schizophrenia Bulletin 40, 13381346.CrossRefGoogle ScholarPubMed
Menon, M, Mizrahi, R, Kapur, S (2008). ‘Jumping to conclusions’ and delusions in psychosis: relationship and response to treatment. Schizophrenia Research 98, 225231.CrossRefGoogle ScholarPubMed
Moritz, S, Andreou, C, Schneider, BC, Wittekind, CE, Menon, M, Balzan, RP, Woodward, TS (2014 a). Sowing the seeds of doubt: a narrative review on metacognitive training in schizophrenia. Clinical Psychology Review 34, 358366.CrossRefGoogle Scholar
Moritz, S, Veckenstedt, R, Andreou, C, Bohn, F, Hottenrott, B, Leighton, L, Köther, U, Woodward, TS, Treszl, A, Menon, M, Schneider, BC, Pfueller, U, Roesch-Ely, D (2014 b). Sustained and ‘sleeper’ effects of group metacognitive training for schizophrenia: a randomized clinical trial. JAMA Psychiatry 71, 11031111.CrossRefGoogle ScholarPubMed
Moritz, S, Veckenstedt, R, Bohn, F, Köther, U, Woodward, TS (2013 a). Metacognitive training in schizophrenia. Theoretical rationale and administration. In Social Cognition in Schizophrenia. From Evidence to Treatment (ed. Roberts, D. L. and Penn, D. L.), pp. 358383. Oxford University Press: New York.CrossRefGoogle Scholar
Moritz, S, Veckenstedt, R, Bohn, F, Hottenrott, B, Scheu, F, Randjbar, S, Aghotor, J, Köther, U, Woodward, TS, Treszl, A, Andreou, C, Pfueller, U, Roesch-Ely, D (2013 b). Complementary group Metacognitive Training (MCT) reduces delusional ideation in schizophrenia. Schizophrenia Research 151, 6169.CrossRefGoogle ScholarPubMed
Moritz, S, Veckenstedt, R, Randjbar, S, Vitzthum, F, Woodward, TS (2011). Antipsychotic treatment beyond antipsychotics: metacognitive intervention for schizophrenia patients improves delusional symptoms. Psychological Medicine 41, 18231832.CrossRefGoogle ScholarPubMed
Moritz, S, Woodward, TS (2006). A generalized bias against disconfirmatory evidence in schizophrenia. Psychiatry Research 15, 142, 157165.CrossRefGoogle Scholar
Moritz, S, Woodward, TS, Whitman, JC, Cuttler, C (2005). Confidence in errors as a possible basis for delusions in schizophrenia. Journal of Nervous and Mental Disease 193, 916.CrossRefGoogle ScholarPubMed
Morrison, AP, Turkington, D, Pyle, M, Spencer, H, Brabban, A, Dunn, G, Christodoulides, T, Dudley, R, Chapman, N, Callcott, P, Grace, T, Lumley, V, Drage, L, Tully, S, Irving, K, Cummings, A, Byrne, R, Davies, LM, Hutton, P (2014). Cognitive therapy for people with schizophrenia spectrum disorders not taking antipsychotic drugs: a single-blind randomised controlled trial. Lancet 383, 13951403.CrossRefGoogle Scholar
Myers, N, Bhatty, S, Broussard, B, Compton, M (2014). Clinical correlates of initial treatment disengagement in first-episode psychosis. Clinical Schizophrenia and Related Psychoses 3, 121.Google Scholar
Newmark, CS, Whitt, JK (1983). Endorsements of Ellis’ irrational beliefs as a function of DSM-III psychotic diagnoses. Journal of Clinical Psychology 39, 820823.3.0.CO;2-2>CrossRefGoogle ScholarPubMed
Penn, D, Roberts, DL, Munt, ED, Silverstein, E, Jones, N, Sheitman, B (2005). A pilot study of social cognition and interaction training (SCIT) for schizophrenia. Schizophrenia Research 15; 80, 357359.CrossRefGoogle Scholar
Peralta, V, Cuesta, MJ (1994). Validación de la Escala de los Síndromes Positivo y Negativo (PANSS) en una muestra de esquizofrénicos españoles. Actas Luso-Españolas de Neurología y Psiquiatría 22, 17.Google Scholar
Pinkham, AE, Penn, DL, Perkins, DO, Lieberman, J (2003). Implications for the neural basis of social cognition for the study of schizophrenia. American Journal of Psychiatry 160, 815824.CrossRefGoogle Scholar
Pousa, E, Duñó, R, Brébion, G, David, AS, Ruiz, AI, Obiols, JE (2008). Theory of mind deficits in chronic schizophrenia: evidence for state dependence. Psychiatry Research 28, 158, 110.CrossRefGoogle Scholar
Rössler, W, Salize, HJ, Van Os, J, Riecher-Rössler, A (2005). Size of burden of schizophrenia and psychotic disorders. European Neuropsychopharmacoly 15, 399409.CrossRefGoogle ScholarPubMed
Salvatore, G, Lysaker, PH, Gumley, A, Popolo, R, Mari, J, Dimaggio, G (2012). Out of illness experience: metacognition-oriented therapy for promoting self-awareness in individuals with psychosis. American Journal of Psychotherapy 66, 85106.CrossRefGoogle ScholarPubMed
Stanković, S, Vukosavljević-Gvozden, T (2011). The relationship of a measure of frustration intolerance with emotional dysfunction in a student sample. Journal of Rational-Emotive & Cognitive-Behavior Therapy 29, 1734.CrossRefGoogle Scholar
Ussorio, D, Giusti, L, Wittekind, CE, Bianchini, V, Malavolta, M, Pollice, R, Casacchia, M, Roncone, R (2016). Metacognitive training for young subjects (MCT young version) in the early stages of psychosis: is the duration of untreated psychosis a limiting factor? Psychology and Psychotherapy 89, 5065.CrossRefGoogle ScholarPubMed
van Oosterhout, B, Krabbendam, L, de Boer, K, Ferwerda, J, van der Helm, M, Stant, AD, van der Gaag, M (2014). Metacognitive group training for schizophrenia spectrum patients with delusions: a randomized controlled trial. Psychological Medicine 44, 30253035.CrossRefGoogle ScholarPubMed
Vohs, JL, Lysaker, PH, Liffick, E, Francis, MM, Leonhardt, BL, James, A, Buck, KD, Hamm, JA, Minor, KS, Mehdiyoun, N, Breier, A (2015). Metacognitive capacity as a predictor of insight in first-episode psychosis. Journal of Nervous and Mental Disease 203, 372378.CrossRefGoogle ScholarPubMed
Windell, DL, Norman, R, Lal, S, Malla, A (2015). Subjective experiences of illness recovery in individuals treated for first-episode psychosis. Social Psychiatry and Psychiatric Epidemiology 50, 10691077.CrossRefGoogle ScholarPubMed
Wykes, T, Steel, C, Everitt, B, Tarrier, N (2008). Cognitive behavior therapy for schizophrenia: effect sizes, clinical models, and methodological rigor. Schizophrenia Bulletin 34, 523537.CrossRefGoogle ScholarPubMed
Xu, ZY, Zu, S, Xiang, YT, Wang, N, Guo, ZH, Kilbourne, AM, Brabban, A, Kingdon, D, Li, ZJ (2013). Associations of self-esteem, dysfunctional beliefs and coping style with depression in patients with schizophrenia: a preliminary survey. Psychiatry Research 30, 209, 340345.CrossRefGoogle Scholar