The Puzzle of Processing Speed Memory and Executive Function Impairments in Schizophrenia: Fitting the Pieces Together

摘要

BackgroundSubstantial impairment in digit-symbol substitution task performance in schizophrenia is well established, which has been widely interpreted as denoting a specific impairment in processing-speed ability. However, other higher-order cognitive functions might be more critical to performance on this task. To date, this has not been rigorously investigated in schizophrenia.