Lexical access in college students with learning disabilities: an electrophysiological and performance-based investigation.

The purpose of this study was to compare the semantic processing abilities of college students with learning disabilities (LD) to those of their peers without learning disabilities (NLD) who were matched for age, gender, and intelligence. Participants were compared on results from the Test of Adolescent/Adult Word Finding (TAWF) and from event-related potential (N400) sampling to the processing of semantically incongruous sentences. The LD and NLD groups did not significantly differ in accuracy on the TAWF; however, students with LD demonstrated a significantly greater number of delayed responses.