This book is an introduction to psycholinguistics, the study of human language processing. It deals with the central areas of this field, the language abilities of the linguistically mature, monolingual adult. Within this scope it offers comprehensive coverage, dealing with both spoken and written language, their comprehension and production, and with the nature of linguistic systems and models of processing. The final chapter looks at the impairment of language processing in aphasia and related disorders, and examines the issues that arise from it. Psycholinguistics will be an essential work for both students and specialists in linguistics and psychology.