Phonological processing of nonwords in deep dyslexia: Typical and independent?

Patients with acquired deep dyslexia are unable to read nonwords aloud. The deficit has therefore been attributed to damage in nonlexical phonological processing. Buchanan, Hildebrandt and MacKinnon [5 Journal of Neurolingistics 8, 163-182, 1994] demonstrated that a deep dyslexic patient could process nonword phonology in two implicit tests. The generality of this claim is examined by replicating the Buchanan et al. experiments with two other deep dyslexic patients. Dissociations between Lexical and nonlexical processing are examined by manipulating nonword phonology in a task that does not require lexical analysis. The results suggest that sensitivity to nonword phonology in deep dyslexia is common and is distinct from a purely lexical analysis. Copyright (C) 1996 Elsevier Science Ltd