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Acta Psychiatr Scand. 2005 Sep;112(3):187-93.

Cognitive training of verbal memory using a dichotic listening paradigm: impact on symptoms and cognition.

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Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.



The objective was to investigate the impact of a verbal memory training task on psychiatric symptoms and cognition in schizophrenia.


As part of a larger, 6-month cognitive remediation program, 57 patients with schizophrenia were randomly assigned to receive performance-based, hierarchical training on a verbal memory task based on a dichotic listening (DL) with distracter paradigm. These patients were compared with 68 patients who had been randomly assigned to a control condition.


Training on the DL task was not associated with changes in general psychopathology or auditory hallucinations (AH) specifically. Training was associated with improvements in verbal memory, but not attention.


The current investigation adds to the growing literature on the effectiveness of cognitive remediation training and indicates that training on the DL task enhances verbal episodic memory. The results do not support the use of DL training as a method for reducing AH.

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