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Cognitive Remediation and Functional Improvement in Schizophrenia: is it a Matter of Size?

Published online by Cambridge University Press:  10 November 2016

M. Bosia
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy Università Vita-Salute San Raffaele, Milan, Italy
M. Buonocore*
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy
M. Bechi
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy
M. Spangaro
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy Università Vita-Salute San Raffaele, Milan, Italy
A. Pigoni
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy
M. Croci
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy
F. Cocchi
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy
C. Guglielmino
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy
L. Bianchi
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy
E. Smeraldi
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy Università Vita-Salute San Raffaele, Milan, Italy
R. Cavallaro
Affiliation:
Department of clinical neurosciences, IRCCS San Raffaele scientific institute, Milan, Italy
*
* Corresponding author. Tel.: +358 50 5928308. E-mail address:[email protected] (J.-P. Klemettilä).
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Abstract

Background

Cognitive Remediation represents the best available tool to treat cognitive deficits in schizophrenia and evidence suggests an effect also on global functioning. However, the relationship between cognitive and functional improvement is not yet fully elucidated: do cognitive changes need to be of a definite size and/or encompass a certain number of domains in order to impact on daily functioning? This study aims to explore the role of cognitive improvement, evaluated both quantitatively and qualitatively through the use of Italian equivalent scores, on the daily functioning of patients. As secondary goal, the influence of demographic, clinical and neuropsychological variables on functional outcome was also systematically investigated.

Methods

One hundred subjects with a diagnosis of schizophrenia underwent 36 sessions of Cognitive Remediation and were evaluated at baseline and after the training with the Brief Assessment of Cognition in Schizophrenia and the Quality of Life Scale.

Results

A total of 70% of patients improved in at least one cognitive domain and over 50% obtained a normalized score. Among the clinical and neurocognitive factors examined, the only significant predictor of quality of life’s improvement was the proportion of cognitive functions that reached an equivalent score of “normal”.

Conclusions

This study suggests that improvements in daily functioning depend on the achievement of a cognitive profile as much as possible “normal”, harmonious and balanced, supporting the idea that a qualitative leap in cognition is needed in order to gain an advantage in real life activities.

Type
Original article
Copyright
Copyright © Elsevier Masson SAS 2017

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Footnotes

1

Authors Marta Bosia and Mariachiara Buonocore equally contributed to this work.

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