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Inicio Revista de Psiquiatría y Salud Mental (English Edition) Somatosensory Amplification in Schizophrenia is Associated With Preserved Neurop...
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Vol. 1. Issue 1.
Pages 3-9 (January 2008)
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Vol. 1. Issue 1.
Pages 3-9 (January 2008)
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Somatosensory Amplification in Schizophrenia is Associated With Preserved Neuropsychological Function
La amplificación somatosensorial en la esquizofrenia está relacionada con la preservación del rendimiento neuropsicológico
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Manuel Valdésa,b, Miguel Bernardoa,b,
Corresponding author
mbernardo@clinic.ub.es

Corresponding author.
, Nuria Segarraa, Gemma Parramóna, M. Teresa Planaa, Lorena Ramia, Manel Salameroa,b, Nuria Bargallóc
a Instituto Clínic de Neurociencias, IDIBAPS, Hospital Clínico Universitario, Barcelona, Spain
b Departamento de Psiquiatría y Psicobiología Clínica, Facultad de Medicina, Universidad de Barcelona, Barcelona, Spain
c Centro de Diagnóstico por la Imagen, Hospital Clínico Universitario, Barcelona, Spain
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Abstract
Background

Some alexithymia features are similar to negative symptoms of schizophrenia, while somatosensory amplification has been def ned as an abnormal perceptual style that could be related to hallucinations and positive schizophrenic symptoms. This study analyzed whether both psychological constructs are related to the type of clinical symptoms and to the neuropsychological assessment of patients with schizophrenia.

Methods

Thirty-seven patients with schizophrenia were assessed psychologically (20 item Toronto Alexithymia Scale and Somatosensory Amplification Scale), clinically, and neuropsychologically and were compared with a control group of healthy subjects (n=37).

Results

No differences were found in alexithymia or somatosensory amplification between patients and controls and there was no relationship between the 2 psychological variables and the type of psychotic symptoms in the patient group. However, among patients with schizophrenia, somatosensory amplification was related to significantly better neuropsychological performance than that found in alexithymic subjects and in patients in general.

Conclusions

Alexithymia was unrelated to negative symptoms and to the neuropsychological performance of patients with schizophrenia, and as a psychological construct seems to be separate from the disease. However, in patients with an amplif er style, neuropsychological performance was highly similar to that found in healthy controls, raising the possibility of studying somatosensory amplification as a psychological variable that is potentially related to the clinical and neuropsychological outcomes of patients with schizophrenia.

Key words:
Alexithymia
Somatosensory amplification
Neuropsychological assessment
Schizophrenia
Resumen
Antecedentes

Algunas características alexitímicas son parecidas a los síntomas negativos de la esquizofrenia, y la amplificación somatosensorial se ha defnido como un estilo perceptivo anormal que podría estar relacionado con las alucinaciones y los síntomas positivos de la esquizofrenia. Este estudio persigue aclarar si ambas construcciones psicológicas se relacionan con el tipo de síntomas clínicos y con el rendimiento neuropsicológico de los pacientes con esquizofrenia.

Métodos

Un grupo de 37 pacientes afectados de esquizofrenia se evaluó desde el punto de vista psicológico (20 ítems; Toronto Alexithymia Scale y Escala de Amplificación Somatosensorial), clínico y neuropsicológico, y se comparó con un grupo de control de sujetos sanos (n=37).

Resultados

No hubo diferencias entre pacientes y controles en las puntuaciones de alexitimia y de amplificación somatosensorial, tampoco se encontró relación entre ambas variables psicológicas y el tipo de síntomas psicóticos en el grupo de pacientes. Sin embargo, en los pacientes con esquizofrenia las puntuaciones en amplificación somatosensorial se relacionaron con un rendimiento neuropsicológico mucho mejor que el presentado por los sujetos alexitímicos y los pacientes en general.

Conclusiones

La alexitimia no se relacionó con los síntomas negativos ni con el rendimiento neuropsicológico de los pacientes con esquizofrenia y pareció ser una construcción psicológica ajena a la enfermedad. En cambio, los pacientes con estilo somatosensorial amplificador presentaron un rendimiento neuropsicológico muy similar al de los controles sanos, lo cual permite pensar en la posibilidad de que la amplificación somatosensorial sea una variable psicológica potencialmente relacionada con la evolución clínica y neuropsicológica de los pacientes con esquizofrenia.

Palabras clave:
Alexitimia
Amplificación somatosensorial
Evaluación neuropsicológica
Esquizofrenia
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