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1.
Schizophr Res Cogn ; 31: 100272, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36338245

RESUMEN

Purpose: Cognitive Adaptation Training (CAT) is a psychosocial intervention with demonstrated effectiveness. However, no validated fidelity instrument is available. In this study, a CAT Fidelity Scale was developed and its psychometric properties, including interrater reliability and internal consistency, were evaluated. Methods: The fidelity scale was developed in a multidisciplinary collaboration between international research groups using the Delphi method. Four Delphi rounds were organized to reach consensus for the items included in the scale. To examine the psychometric properties of the scale, data from a large cluster randomized controlled trial evaluating the implementation of CAT in clinical practice was used. Fidelity assessors conducted 73 fidelity reviews at four mental health institutions in the Netherlands. Results: After three Delphi rounds, consensus was reached on a 44-item CAT Fidelity Scale. After administration of the scale, 24 items were removed in round four resulting in a 20-item fidelity scale. Psychometric properties of the 20-item CAT Fidelity Scale shows a fair interrater reliability and an excellent internal consistency. Conclusions: The CAT fidelity scale in its current form is useful for both research purposes as well as for individual health professionals to monitor their own adherence to the protocol. Future research needs to focus on improvement of items and formulating qualitative anchor point to the items to increase generalizability and psychometric properties of the scale. The described suggestions for improvement provide a good starting point for further development.

2.
J Psychiatr Res ; 156: 460-466, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36335836

RESUMEN

BACKGROUND: Research suggests that in-session emotional experiences in psychotherapy promote both session and treatment outcomes across different clinical samples and treatment approaches. However, little is known about how this notion applies to clients with schizophrenia, who experience particular deficits related to emotional experience. To explore this question, we investigated the association between clients' emotional experience and their session outcome evaluations and metacognitive growth in a metacognitively-oriented treatment, Metacognitive Reflection and Insight Therapy (MERIT). MERIT is a recovery-oriented treatment approach for psychosis that focuses on recapturing a coherent sense of self and personal agency by enhancing metacognitive capacity. METHOD: Five-hundred-and-sixty-three sessions of 37 clients with schizophrenia who took part in an ongoing MERIT trial were analyzed. The Emotional Experience Self-Report (EE-SR) and Outcome Rating Scale (ORS) were collected on a session-by-session basis. Levels of metacognition ware assessed pre- and post-treatment using the Metacognitive Assessment Scale-Abbreviated (MAS-A) coding system. We used multilevel modeling to test our session-level predictions, and linear regression analysis for treatment-level predictions. RESULTS: Greater emotional experience, expression, and regulation within a session were associated with better session outcome. Regarding treatment level, greater emotional experience was associated with improvement in metacognitive mastery. CONCLUSIONS: Our findings reveal that experiencing emotions in MERIT has significant implications for clients' subjective well-being during therapy sessions and for their ability to respond to psychological challenges using metacognitive knowledge. These findings lend weight to the idea that emotional experience is a key mechanism of change in metacognitive therapy for schizophrenia.


Asunto(s)
Esquizofrenia , Humanos , Esquizofrenia/complicaciones , Esquizofrenia/terapia , Evaluación de Resultado en la Atención de Salud
3.
J Psychiatr Ment Health Nurs ; 29(4): 568-577, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35048468

RESUMEN

WHAT IS KNOWN ON THE SUBJECT?: To date, the majority of the research regarding innovative psychosocial interventions in psychiatry focuses upon the development and effectiveness of the interventions. Despite the fact that these are important clinical and scientific contributions, only a small percentage of the evidence-based interventions reach clinical practice. Cognitive Adaptation Training (CAT) is an effective psychosocial intervention to increase daily functioning and cognitive functioning in people diagnosed with severe mental illness (SMI) in inpatient and outpatient psychiatric care. Despite knowledge on the intervention's effectiveness, systematic use of CAT in the daily routine of mental health nurses is insufficient. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE?: To date, no research is available that describes the factors associated to the implementation of CAT from a nursing perspective. This research also adds to the literature on rehabilitation in people diagnosed with SMI in an inpatient setting. The results contribute to the science of implementing interventions in long-term psychiatric care and may help future interventions in their implementation process. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: This study highlights that multiple factors need to be considered when implementing an intervention in routine care and that it is a complicated process. Future implementation initiatives require ongoing training and supervision of CAT specialists, appointment of local champions to increase commitment among nursing staff and inclusion and commitment of management to overcome organizational barriers. Without acknowledging the presence of barriers to implementation and considering strategies to overcome these barriers, sustainable implementation is likely to be unsuccessful. ABSTRACT: Introduction Evidence-based interventions in psychiatry often fail to reach clinical practice. Cognitive Adaptation Training (CAT) is an evidence-based psychosocial intervention that aims to improve daily functioning of people diagnosed with a severe mental illness. Implementation of CAT remains challenging, despite demonstrated effectiveness. Aim Identifying facilitators and barriers of CAT on the intervention, nursing, and organizational levels, and investigating relationships between capability, opportunity, motivation, and appraisal using the COM-B model. Method The Measurement Instrument for Determinants of Innovations and CAT-specific questions were administered to 46 nurses. The relationship among capability, opportunity, motivation and appraisal was calculated using the Pearson's r correlation coefficient. Results Nine barriers (mostly organizational level) and 13 facilitators (mostly intervention and nursing level) were identified. Significant moderate correlations were found between capability and opportunity, capability and motivation, capability and appraisal and a strong correlation between motivation and appraisal. Discussion The results suggest that barriers at the organizational level should be removed and facilitators at intervention and nursing levels may be exploited to improve implementation. Implications for practice Future implementation initiatives require ongoing training and supervision of CAT specialists, appointment of local champions to increase commitment among nursing staff and inclusion and commitment of management to overcome organizational barriers.


Asunto(s)
Trastornos del Conocimiento , Personal de Enfermería , Enfermería Psiquiátrica , Cognición , Humanos , Pacientes Internos
4.
Schizophr Res ; 238: 121-127, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34653741

RESUMEN

PURPOSE: This study examines satisfaction with social connectedness (SSC) as predictor of positive and negative symptoms in people with a psychotic disorder. METHODS: Data from the Pharmacotherapy Monitoring and Outcome Survey (PHAMOUS) was used from patients assessed between 2014 and 2019, diagnosed with a psychotic disorder (N = 2109). Items about social connectedness of the Manchester short assessment of Quality of Life (ManSA) were used to measure SSC. Linear mixed models were used to estimate the association of SSC with the Positive and Negative Syndrome Scale (PANSS) after one and two years against α = 0.01. Analyses were adjusted for symptoms, time since onset, gender and age. Additionally, fluctuation of positive and negative symptom scores over time was estimated. RESULTS: The mean duration of illness of the sample was 18.8 years (SD 10.7) with >65% showing only small variation in positive and negative symptoms over a two to five-year time period. After adjustment for covariates, SSC showed to be negatively associated with positive symptoms after one year (ß = -0.47, p < 0.001, 95% CI = -0.70, -025) and two years (ß = -0.59, p < 0.001, 95% CI = -0.88, -0.30), and for negative symptoms after one year (ß = -0.52, p < 0.001, 95% CI = -0.77, -0.27). The prediction of negative symptoms was not significant at two years. CONCLUSION: This research indicates that interventions on SSC might positively impact mental health for people with psychosis. SSC is a small and robust predictor of future levels of positive symptoms. Negative symptoms could be predicted by SSC at one year.


Asunto(s)
Trastornos Psicóticos , Calidad de Vida , Humanos , Salud Mental , Evaluación de Resultado en la Atención de Salud , Satisfacción Personal , Trastornos Psicóticos/diagnóstico , Trastornos Psicóticos/tratamiento farmacológico
5.
J Nerv Ment Dis ; 204(9): 713-6, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27570900

RESUMEN

In preparation for a multicenter randomized controlled trial, a pilot study was conducted investigating the feasibility and acceptance of a shortened version (12 vs. 40 sessions) of an individual metacognitive psychotherapy (Metacognitive Reflection and Insight Therapy [MERIT]). Twelve participants with a diagnosis of schizophrenia were offered 12 sessions of MERIT. Effect sizes were calculated for changes from baseline to treatment end for metacognitive capacity measured by the Metacognition Assessment Scale-Abbreviated. Nine of twelve patients finished treatment. However, nonsignificant moderate to large effect sizes were obtained on the primary outcome measure. This study is among the first to suggest that patients with schizophrenia will accept metacognitive therapy and evidence improvements in metacognitive capacity. Despite limitations typical to a pilot study, including a small sample size and lack of a control group, sufficient evidence of efficacy was obtained to warrant further investigation.


Asunto(s)
Terapia Cognitivo-Conductual/métodos , Metacognición , Esquizofrenia/terapia , Adulto , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Proyectos Piloto , Escalas de Valoración Psiquiátrica , Psicología del Esquizofrénico , Resultado del Tratamiento
6.
J Psychopharmacol ; 30(4): 354-62, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26883305

RESUMEN

OBJECTIVE: In the general population cannabis use is associated with better cardiometabolic outcomes. Patients with severe mental illness frequently use cannabis, but also present increased cardiometabolic risk factors. We explore the association between cannabis use and cardiometabolic risk factors in patients with severe mental illness. METHOD: A total of 3169 patients with severe mental illness from a Dutch cohort were included in the study. The association of cannabis use with body mass index, waist circumference, blood pressure, cholesterol, triglycerides, glucose, glycated hemoglobin and Positive and Negative Syndrome Scale was examined with separate univariate AN(C)OVA. Changes in metabolic risk factors and Positive and Negative Syndrome Scale were examined after a follow-up interval of 9-24 months, for patients who continued, discontinued, started or were never using cannabis between the two assessments. RESULTS: Cannabis users at baseline had lower body mass index, smaller waist circumference, lower diastolic blood pressure, and more severe psychotic symptoms than non-users. Patients who discontinued their cannabis use after the first assessment had a greater increase in body mass index, waist circumference, diastolic blood pressure and triglyceride concentrations than other patients, and the severity of their psychotic symptoms had decreased more compared to continued users and non-users. CONCLUSION: Extra attention should be paid to the monitoring and treatment of metabolic parameters in patients who discontinue their cannabis use.


Asunto(s)
Cannabinoides/efectos adversos , Cannabinoides/uso terapéutico , Cannabis/efectos adversos , Trastornos Mentales/tratamiento farmacológico , Trastornos Mentales/fisiopatología , Trastornos Mentales/psicología , Adulto , Presión Sanguínea/efectos de los fármacos , Índice de Masa Corporal , Enfermedades Cardiovasculares/etiología , Estudios de Cohortes , Femenino , Humanos , Masculino , Abuso de Marihuana/complicaciones , Fumar Marihuana/efectos adversos , Salud Mental , Evaluación de Resultado en la Atención de Salud , Trastornos Psicóticos/fisiopatología , Trastornos Psicóticos/psicología , Factores de Riesgo , Trastornos Relacionados con Sustancias/complicaciones , Encuestas y Cuestionarios , Circunferencia de la Cintura/efectos de los fármacos
7.
PLoS One ; 9(12): e112276, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25474313

RESUMEN

AIMS: The aim of this study was to estimate the effects of lifestyle interventions on bodyweight and other cardiometabolic risk factors in people with psychotic disorders. Additionally, the long-term effects on body weight and the effects on depressive symptoms were examined. MATERIAL AND METHODS: We searched four databases for randomized controlled trials (RCTs) that compared lifestyle interventions to control conditions in patients with psychotic disorders. Lifestyle interventions were aimed at weight loss or weight gain prevention, and the study outcomes included bodyweight or metabolic parameters. RESULTS: The search resulted in 25 RCTs -only 4 were considered high quality- showing an overall effect of lifestyle interventions on bodyweight (effect size (ES)  =  -0.63, p<0.0001). Lifestyle interventions were effective in both weight loss (ES =  -0.52, p<0.0001) and weight-gain-prevention (ES =  -0.84, p = 0.0002). There were significant long-term effects, two to six months post-intervention, for both weight-gain-prevention interventions (ES =  -0.85, p = 0.0002) and weight loss studies (ES =  -0.46, p = 0.02). Up to ten studies reported on cardiometabolic risk factors and showed that lifestyle interventions led to significant improvements in waist circumference, triglycerides, fasting glucose and insulin. No significant effects were found for blood pressure and cholesterol levels. Four studies reported on depressive symptoms and showed a significant effect (ES =  -0.95, p = 0.05). CONCLUSION: Lifestyle interventions are effective in treating and preventing obesity, and in reducing cardiometabolic risk factors. However, the quality of the studies leaves much to be desired.


Asunto(s)
Depresión/epidemiología , Obesidad/epidemiología , Trastornos Psicóticos/epidemiología , Pérdida de Peso , Presión Sanguínea/fisiología , Índice de Masa Corporal , Peso Corporal , Depresión/complicaciones , Ejercicio Físico , Humanos , Resistencia a la Insulina/fisiología , Estilo de Vida , Obesidad/complicaciones , Trastornos Psicóticos/complicaciones , Factores de Riesgo
8.
Isr J Psychiatry Relat Sci ; 51(1): 54-62, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24858635

RESUMEN

Deficits in metacognitive capacity in schizophrenia can be conceptualized as existing along a spectrum from more discrete to more synthetic activities. While each represents an equally important focus of study, synthetic metacognitive activities may be more difficult to measure given they are more a matter of assessing complexity of thought rather than concrete accuracy; and therefore have received less attention. This review summarizes research on synthetic metacognition using a paradigm in which metacognitive capacity is rated within personal narratives. Results across the work reviewed here provides evidence that these deficits are detectable in patients with schizophrenia and that deficits are related to, but not reducible to, symptom severity and poorer neurocognitive function. Independent of symptoms and neurocognition, deficits in synthetic metacognition are related to a range of mental activities including reasoning style, learning potential and insight. These deficits may also play a role in long term outcome via their impact on the ability to function in work settings and to think about and sustain social connections.


Asunto(s)
Concienciación/fisiología , Cognición/fisiología , Relaciones Interpersonales , Esquizofrenia/fisiopatología , Pensamiento/fisiología , Humanos
9.
J Psychiatr Res ; 55: 126-32, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24811777

RESUMEN

Research has suggested that many with schizophrenia experience decrements in synthetic metacognition, or the abilities to form integrated representations of oneself and others and then utilize that knowledge to respond to problems. Although such deficits have been linked with functional impairments even after controlling for symptoms and neurocognition, it is unclear to what extent these deficits can distinguish persons with schizophrenia from others experiencing significant life adversity but without psychosis. To explore this issue we conducted logistic regression analysis to determine whether assessment of metacognition could distinguish between 166 participants with schizophrenia and 51 adults with HIV after controlling for social cognition and education. Metacognition was assessed with the Metacognitive Assessment Scale Abbreviated (MAS-A), and social cognition with the Bell Lysaker Emotion Recognition Test. We observed that the MAS-A total score was able to correctly classify 93.4% of the schizophrenia group, with higher levels of metacognition resulting in increased likelihood of accurate categorization. Additional exploratory analyses showed specific domains of metacognition measured by the MAS-A were equally able to predict membership in the schizophrenia group. Results support the assertion that deficits in the abilities to synthesize thoughts about oneself and others into larger representations are a unique feature of schizophrenia.


Asunto(s)
Cognición , Infecciones por VIH/diagnóstico , Infecciones por VIH/psicología , Esquizofrenia/diagnóstico , Psicología del Esquizofrénico , Pensamiento , Escolaridad , Femenino , Humanos , Entrevistas como Asunto , Modelos Logísticos , Masculino , Persona de Mediana Edad , Pruebas Psicológicas , Percepción Social , Teoría de la Mente
10.
PLoS One ; 8(7): e67774, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23874445

RESUMEN

Impaired Theory of Mind (ToM) has been repeatedly reported as a feature of psychotic disorders. ToM is crucial in social interactions and for the development of social behavior. It has been suggested that reasoning about the belief of others, requires inhibition of the self-perspective. We investigated the neural correlates of self-inhibition in nineteen low psychosis prone (PP) and eighteen high PP subjects presenting with subclinical features. High PP subjects have a more than tenfold increased risk of developing a schizophrenia-spectrum disorder. Brain activation was measured with functional Magnetic Resonance Imaging during a ToM task differentiating between self-perspective inhibition and belief reasoning. Furthermore, to test underlying inhibitory mechanisms, we included a stop-signal task. We predicted worse behavioral performance for high compared to low PP subjects on both tasks. Moreover, based on previous neuroimaging results, different activation patterns were expected in the inferior frontal gyrus (IFG) in high versus low PP subjects in self-perspective inhibition and simple response inhibition. Results showed increased activation in left IFG during self-perspective inhibition, but not during simple response inhibition, for high PP subjects as compared to low PP subjects. High and low PP subjects showed equal behavioral performance. The results suggest that at a neural level, high PP subjects need more resources for inhibiting the self-perspective, but not for simple motor response inhibition, to equal the performance of low PP subjects. This may reflect a compensatory mechanism, which may no longer be available for patients with schizophrenia-spectrum disorders resulting in ToM impairments.


Asunto(s)
Inhibición Psicológica , Trastornos Psicóticos/fisiopatología , Autoimagen , Teoría de la Mente/fisiología , Femenino , Lóbulo Frontal/fisiología , Humanos , Imagen por Resonancia Magnética , Masculino , Países Bajos , Adulto Joven
11.
Schizophr Res ; 137(1-3): 219-23, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22381192

RESUMEN

While there is emerging evidence that dissociation is linked with trauma history and possibly symptoms in schizophrenia, it remains unclear whether dissociation represents a symptom dimensions in its own right in schizophrenia and as such is uniquely related to other features of illness. To explore this issue the current study sought to find out whether dissociation was uniquely related to an index of social cognition closely linked to social functioning, namely affect recognition. We hypothesized that dissociation would be linked with affect recognition because symptoms of dissociation may uniquely disrupt processes which are expected to be needed for correctly recognizing emotions. The sample contained 49 participants diagnosed with a schizophrenia spectrum disorder who were in a non-acute phase of disorder. Participants were concurrently administered the Bell-Lysaker Emotion Recognition Task, the Dissociative Experiences Scale, the Post Traumatic Stress Disorder Checklist and the Positive and Negative Symptoms Scale. Stepwise linear regression analyses were performed in which dissociative symptoms were forced to enter after the other symptoms in order to predict deficits in affect recognition. These analyses revealed that greater levels of dissociative symptoms predicted poorer recognition of negative emotions over and above that of positive, negative, cognitive and PTSD symptoms. Results are consistent with the possibility that dissociation represents a unique dimension o f psychopathology in schizophrenia which may be linked to function.


Asunto(s)
Trastornos del Conocimiento/etiología , Trastornos Disociativos/etiología , Esquizofrenia/complicaciones , Psicología del Esquizofrénico , Conducta Social , Adulto , Femenino , Hospitales de Veteranos , Humanos , Masculino , Persona de Mediana Edad , Trastornos del Humor/etiología , Pruebas Neuropsicológicas , Valor Predictivo de las Pruebas , Escalas de Valoración Psiquiátrica , Índice de Severidad de la Enfermedad , Trastornos de Estrés Traumático/etiología , Veteranos
12.
Neuroimage ; 56(4): 2364-74, 2011 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-21440642

RESUMEN

Taking the perspective of somebody else (Theory of Mind; ToM) is an essential human ability depending on a large cerebral network comprising prefrontal and temporo-parietal regions. Recently, ToM was suggested to consist of two processes: (1) self-perspective inhibition and (2) belief reasoning. Moreover, it has been hypothesized that self-perspective inhibition may build upon basic motor response inhibition. This study tested both hypotheses for the first time using functional Magnetic Resonance Imaging (fMRI), through administering both a ToM and a stop-signal paradigm in the same subjects. Both self-perspective and motor response inhibition yielded bilateral inferior frontal gyrus (IFG) activation, suggesting a common inhibitory mechanism, while belief reasoning was mediated by the superior temporal gyrus (STG) and temporo-parietal junction (TPJ). Thus, we provide neurobiological evidence for a subdivision of ToM into self-perspective inhibition and belief reasoning. Furthermore, evidence for partially shared neural mechanisms for inhibition in complex social situations and basic motor response inhibition was found.


Asunto(s)
Mapeo Encefálico , Encéfalo/fisiología , Inhibición Psicológica , Teoría de la Mente/fisiología , Femenino , Humanos , Interpretación de Imagen Asistida por Computador , Imagen por Resonancia Magnética , Masculino , Adulto Joven
13.
J Autism Dev Disord ; 41(9): 1256-66, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21153873

RESUMEN

Autism Diagnostic Observation Schedule (ADOS) module 4 was investigated in an independent sample of high-functioning adult males with an autism spectrum disorder (ASD) compared to three specific diagnostic groups: schizophrenia, psychopathy, and typical development. ADOS module 4 proves to be a reliable instrument with good predictive value. It can adequately discriminate ASD from psychopathy and typical development, but is less specific with respect to schizophrenia due to behavioral overlap between autistic and negative symptoms. However, these groups differ on some core items and explorative analyses indicate that a revision of the algorithm in line with Gotham et al. (J Autism Dev Disord 37: 613-627, 2007) could be beneficial for discriminating ASD from schizophrenia.


Asunto(s)
Trastornos Generalizados del Desarrollo Infantil/diagnóstico , Trastornos Generalizados del Desarrollo Infantil/psicología , Inteligencia , Psicometría/estadística & datos numéricos , Adolescente , Adulto , Trastorno de Personalidad Antisocial/diagnóstico , Trastorno de Personalidad Antisocial/psicología , Niño , Diagnóstico Diferencial , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Reproducibilidad de los Resultados , Esquizofrenia/diagnóstico , Adulto Joven
14.
Schizophr Res ; 96(1-3): 135-45, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17766089

RESUMEN

BACKGROUND: Deficits in emotion processing may be one of the most pervasive disturbances in schizophrenia that may contribute to social isolation. In this report we focus on vocal emotion processing. This function bears upon two corner stones of social functioning, language and emotion, which have both been found to be impaired in schizophrenia. METHODS: We used meta-analysis to integrate findings of studies published between 1980 and June 2007 on perception of emotional prosody in schizophrenia. 17 studies provided sufficient information to be included. A mean weighted effect size was computed in the random effects model. Publication bias was tested using funnel plots and fail-safe number of studies. Seven studies were included in an analysis on the expression (i.e. production) of emotional prosody in schizophrenia. RESULTS: A significant and stable mean weighted effect size was found for the perception of emotional prosody, d=-1.24, 95% CI=-1.55 to -0.93. The effect was also found in the early stages of the illness. Expression of emotional prosody was also significantly impaired, d=-1.11, 95% CI=-1.78 to -0.43. CONCLUSIONS: Results indicate that individuals with schizophrenia are impaired in the perception and expression of emotional prosody, with a large effect size. As a growing body of evidence shows that impaired social cognition in schizophrenia may be an important predictor of social outcome, training programs that aim at the recognition of emotional prosody should be developed.


Asunto(s)
Emociones , Reconocimiento en Psicología , Psicología del Esquizofrénico , Adolescente , Adulto , Distribución por Edad , Niño , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Femenino , Humanos , Masculino , Percepción , Tamaño de la Muestra
15.
Br J Psychiatry ; 186: 324-30, 2005 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-15802690

RESUMEN

BACKGROUND: There is increasing evidence that cognitive-behavioural therapy can be an effective intervention for patients experiencing drug-refractory positive symptoms of schizophrenia. AIMS: To investigate the effects of cognitive-behavioural therapy on in-patients with treatment-refractory psychotic symptoms. METHOD: Manualised therapy was compared with supportive counselling in a randomised controlled study. Both interventions were delivered by experienced psychologists over 16 sessions of treatment. Therapy fidelity was assessed by two independent raters. Participants underwent masked assessment at baseline, after treatment and at 6 months' follow-up. Main outcome measures were the Positive and Negative Syndrome Scale and the Psychotic Symptoms Rating Scale. The analysis was by intention to treat. RESULTS: Participants receiving cognitive cognitive-behavioural therapy had improved with regard to auditory hallucinations and illness insight at the post-treatment assessment, but these findings were not maintained at follow-up. CONCLUSIONS: Cognitive-behavioural therapy showed modest short-term benefits over supportive counselling for treatment-refractory positive symptoms of schizophrenia.


Asunto(s)
Terapia Cognitivo-Conductual/métodos , Esquizofrenia/terapia , Adolescente , Adulto , Anciano , Antipsicóticos/uso terapéutico , Consejo , Resistencia a Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cooperación del Paciente , Esquizofrenia/tratamiento farmacológico , Resultado del Tratamiento
16.
Schizophr Res ; 69(2-3): 267-76, 2004 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-15469198

RESUMEN

INTRODUCTION: Schizophrenia patients perform below the norm on verbal fluency tests. The causes for this are unknown, but defective memory, executive functioning and psychomotor speed may play a role. METHOD: We examined 50 patients with schizophrenia and related disorders, and 25 healthy controls with a cognitive test battery containing tests for verbal memory, executive functioning and psychomotor speed, and a categorical fluency test. RESULTS: Patients obtained significantly lower test results than the controls on most cognitive measures including the verbal fluency test. During the fluency test, they formed as many clusters, and switched as often between clusters as the controls did, but they generated fewer words per cluster. Interestingly, in the control group, fluency performance was predicted by memory and executive functioning, but not by psychomotor speed. In patients, verbal fluency was predicted by psychomotor speed, but not by memory or executive functioning. DISCUSSION: We conclude that psychomotor speed could be a crucial factor in cognition, and its influence on cognitive test performance should be considered in schizophrenia research. Furthermore, these data illustrate the importance of qualitative analysis of cognitive impairments in schizophrenia patients, as traditional cognitive tests often only provide quantitative information.


Asunto(s)
Pruebas del Lenguaje , Valor Predictivo de las Pruebas , Esquizofrenia/fisiopatología , Trastornos del Habla/etiología , Conducta Verbal/fisiología , Adulto , Cognición/fisiología , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas/estadística & datos numéricos , Solución de Problemas/fisiología , Desempeño Psicomotor/fisiología , Aprendizaje Verbal/fisiología
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