NDLI: Metalinguistic Deficits in Patients with Cerebellar Dysfunction: Empirical Support for the Dysmetria of Thought Theory

Content Provider	Springer Nature Link
Author	Guell, Xavier Hoche, Franziska Schmahmann, Jeremy D.
Copyright Year	2014
Abstract	The cerebellar cognitive affective syndrome (CCAS) includes disruption of linguistic processing such as verbal fluency, verbal working memory, grammar, and speech perception. We set out to examine linguistic capabilities in patients with cerebellar lesions to determine which domains are spared and which impaired and to evaluate the underlying cognitive structure of these deficits. Forty-four patients with cerebellar disease were compared to 40 healthy controls on the Oral Sentence Production Test (OSPT) which assesses production of sentences with correct syntactic structure and semantic quality. Twenty-five of these cerebellar patients and 25 controls received the Test of Language Competence-Expanded (TLC-E) that assesses metalinguistic ability. The OSPT failed to reveal differences between patients and controls. In contrast, all cerebellar patients were impaired on each of the four TLC-E subtests. Differences between isolated cerebellar and complex cerebrocerebellar patients were nonsignificant. These results confirm and extend prior observations of the TLC-E in patients with cerebellar lesions and suggest three separate but related language impairments following cerebellar dysfunction: (1) disruption in automatic adjustment of intact grammatical and semantic abilities to a linguistic context in sentence production, (2) disruption in automatic adjustment to a linguistic context in sentence interpretation, and (3) disruption of cognitive processes essential for linguistic skills, such as analysis and sequential logical reasoning. These findings are consistent with the unifying framework of the universal cerebellar transform and the dysmetria of thought theory and provide new insights into the nature of the cognitive impairments in patients with the CCAS.
Starting Page	50
Ending Page	58
Page Count	9
File Format	PDF
ISSN	14734222
Journal	The Cerebellum
Volume Number	14
Issue Number	1
e-ISSN	14734230
Language	English
Publisher	Springer US
Publisher Date	2014-12-11
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cerebellum Language Metalinguistic Dysmetria of thought Cerebellar cognitive affective syndrome Universal cerebellar transform Neurosciences Neurology Neurobiology
Content Type	Text
Resource Type	Article
Subject	Neurology Neurology (clinical)

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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