status or chronicity (e.g., Albus et al., 2006; Hill et al., 2004; Saykin et al., 1994). Although it may be difficult to differentiate verbal memory from a more generalized cognitive dysfunction (Blanchard and Neale, 1994), there is growing evidence that a subgroup of patients with schizophrenia has a selective deficit in verbal working memory (e.g., Bruder et al., 2004; Wexler et al., 1998).