Clinical Approach to Language Disorders
Andrew Kertesz, MD FRCPC
Department
of Clinical Neurological Sciences
University
of Western Ontario
St. Joseph’s
Hospital
268 Grosvenor
St., London, ONN6A 4V2CANADA
These are approximately 1 hour seminars to be given, 2 in 2 ½
hour sessions per day
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The biology of language - The principles of sensory motor organization
and lateralization of brain function are introduced. The ontogeny and phylogeny
of cerebral lateralization and specialization are presented.
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Language Localization – The anatomy and physiology of language areas are
described: From the lesion
method to functional activation with PET scanning and functional magnetic
resonance.
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Motor aphasia, the articulatory network, agrammatism, Broca’s aphasia,
transcortical motor aphasia and pure motor aphasia (aphemia) are detailed. The
specific disturbances of articulation, phonology, and syntax as well as
word access are discussed in the context of verbal apraxia, Broca’s aphasia
and transcortical motor aphasia.
-
Sensory aphasia or Wernicke’s aphasia is described from pure word deafness
to neologistic jargon, the differences between aphemic, semantic, and neologistic
jargon, word deafness, amusia, and cortical deafness.
-
Conduction aphasia, auditory short-term memory, the phonological buffer
system, the auditory verbal network, the interaction of phonology and semantics
from comprehension to language output, and transcortical sensory aphasia
are described.
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Anomia, word access, and semantic representation, the concept of supramodel
semantic field vs. modality-specific semantic domains is explored. Naming
and its disturbances, as well as category-specific and modality-specific
naming disorders will be discussed.
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Alexia and agraphia will be described from pure, visual alexia through
spelling dyslexia, alexia with agraphia, phonological deep and surface
dyslexia, as well as developmental dyslexia will be discussed. The
cognitive analysis of writing, reading, and symbolic communication is explored.
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Language testing, the rationale of various aphasia batteries and their
standardization, the importance of content validity, reproducibility, and
the goals of language testing in the context of neuropsychological and
clinical bedside methodology are systematically presented.
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The recovery and treatment of language disorders will be discussed, as
reflected by the experience from stroke and posttraumatic aphasia.
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Primary progressive aphasia, the dominant temporal variety of FTD, and
the language impairment in degenerative disorders such as in AD and semantic
dementia will be described.
Recommended
reading:
-
Aphasia and Associated Disorders. Kertesz,
A. New
York: (Grune & Stratton) Psychological Corporation Inc., 1979.
-
Localization and Neuroimaging in Neuropsychology. Kertesz,
A. (ed.). San
Diego: Academic Press, 1994.
-
Pick’s Disease and Pick Complex. Kertesz
A, Munoz DG (eds.). New
York: Wiley & Sons, Inc., 1998.