To the Editor: I read the article by Bruce E. Wexler, M.D., and colleagues (1) with much interest. The authors studied the effect of cognitive exercises on verbal and nonverbal memory performance in eight patients with schizophrenia. Three patients exhibited improved performance after training on a verbal memory task (but not on a nonverbal memory test). In these patients, verbal memory gains were associated with an increase in activation of the left frontal cortex on functional magnetic resonance imaging. The authors concluded that verbal memory deficits can be ameliorated by memory exercises in some patients with schizophrenia.