Kenneth M. Heilman

in Matter of Mind

Published in print April 2002 | ISBN: 9780195144901
Published online May 2009 | e-ISBN: 9780199865642 | DOI:

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This chapter discusses the brain mechanisms underlying the three categories of language disorders: speech disorders, reading disorders, and writing disorders. Speech disorders include loss of speech programs (Broca's aphasia), loss memory for word sounds (Wernicke's aphasia), dissociation of word sound memories and speech programs (conduction aphasia), and the inability to access memories for word sounds (anomic aphasia). Reading disorders include pure alexia, phonological dyslexia, lexical dyslexia, and semantic dyslexia. Language disorders include callosal agraphia, aphraxic agraphia, and semantic agraphia.

Keywords: speech disorders; language disorders; reading disorders; aphasia; alexia; dyslexia; agraphia; speech fluency; comprehension; repetition; naming

Chapter.  14339 words.  Illustrated.

Subjects: Neuroscience

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