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Verb deficits in Alzheimer's disease...

Kim, Mikyong.

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Verb deficits in Alzheimer's disease and agrammatism: Implications for lexical organization.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Verb deficits in Alzheimer's disease and agrammatism: Implications for lexical organization./
Author:	Kim, Mikyong.
Description:	265 p.
Notes:	Adviser: Cynthia K. Thompson.
Contained By:	Dissertation Abstracts International62-11B.
Subject:	Health Sciences, Speech Pathology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3033506
ISBN:	9780493458953

Verb deficits in Alzheimer's disease and agrammatism: Implications for lexical organization.
Kim, Mikyong.

Verb deficits in Alzheimer's disease and agrammatism: Implications for lexical organization. - 265 p.

Adviser: Cynthia K. Thompson.

Thesis (Ph.D.)--Northwestern University, 2001.

Finally, morpho-syntactic analysis of narrative samples revealed syntactic impairment in agrammatic but not in PRAD subjects.

ISBN: 9780493458953Subjects--Topical Terms:

1018105
Health Sciences, Speech Pathology.

Verb deficits in Alzheimer's disease and agrammatism: Implications for lexical organization.
LDR:03378nam 2200325 a 45 001 958608
005 20110704
008 110704s2001 ||||||||||||||||| ||eng d
020 $a 9780493458953
035 $a (UMI)AAI3033506
035 $a AAI3033506
040 $a UMI $c UMI
100 1 $a Kim, Mikyong. $3 1282066
245 1 0 $a Verb deficits in Alzheimer's disease and agrammatism: Implications for lexical organization.
300 $a 265 p.
500 $a Adviser: Cynthia K. Thompson.
500 $a Source: Dissertation Abstracts International, Volume: 62-11, Section: B, page: 5076.
502 $a Thesis (Ph.D.)--Northwestern University, 2001.
520 $a Finally, morpho-syntactic analysis of narrative samples revealed syntactic impairment in agrammatic but not in PRAD subjects.
520 $a The present study examined the presence and nature of verb deficits in 14 probable Alzheimer's disease (PRAD) patients, by investigating factors influencing their verb retrieval and their use of verb knowledge in sentence processing, by comparing their performance to nine agrammatic aphasic and ten normal subjects. Naming and comprehension tasks involving nouns and verbs, a sentence completion and a semantic anomaly judgment task were used to study their semantic abilities. A verb naming (by verb type) and a grammaticality judgment task were used to illuminate syntactic abilities. A narrative task was used to investigate both syntactic and semantic abilities.
520 $a Both syntactic and semantic factors influenced agrammatic and PRAD subjects' verb retrieval, but in different ways. While agrammatic subjects demonstrated greater difficulty retrieving verbs with more arguments (i.e., syntactic factor), PRAD subjects did not show any systematic effect of this factor. The same effect was observed in the agrammatic subjects' grammaticality judgment, revealing greater difficulty judging the grammaticality of sentences containing verbs with more arguments.
520 $a On the other hand, both groups' verb retrieval was influenced by the semantic complexity of verbs (i.e., semantic factor). While agrammatic subjects retrieved complex verbs better than simple ones, as normal subjects did, PRAD subjects showed the opposite pattern. These contrasting patterns were also observed in their error data and narrative samples.
520 $a In addition, PRAD subjects' patterns of verb retrieval suggested a "bottom-up" breakdown in their verb lexicon, paralleling that in their noun lexicon, resulting from the degradation or loss of semantic features, progressing from specific to general verbs. This breakdown pattern was also suggested by their semantic anomaly judgment.
520 $a The results confirmed the recent report of a verb deficit in PRAD patients. However, PRAD subjects' verb deficit seemed to involve only the semantic, but not syntactic, aspects of a verb's representation. The comparison of performance patterns between the two groups appears to support the modular view of language, in that semantics and syntax can be selectively impaired in each group, respectively, and in one word class, namely verbs.
590 $a School code: 0163.
650 4 $a Health Sciences, Speech Pathology. $3 1018105
690 $a 0460
710 2 $a Northwestern University. $3 1018161
773 0 $t Dissertation Abstracts International $g 62-11B.
790 $a 0163
790 1 0 $a Thompson, Cynthia K., $e advisor
791 $a Ph.D.
792 $a 2001
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3033506