Universität zu Köln

Lowit, Anja ORCID: 0000-0003-0842-584X, Thies, Tabea, Steffen, Julia, Scheele, Franziska, Roheger, Mandy, Kalbe, Elke and Barbe, Michael (2022). Task-based profiles of language impairment and their relationship to cognitive dysfunction in Parkinson's disease. PLoS One, 17 (10). SAN FRANCISCO: PUBLIC LIBRARY SCIENCE. ISSN 1932-6203

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Abstract

Objective Parkinson's Disease (PD) is associated with both motor and non-motor problems, such as cognitive impairment. Particular focus in this area has been on the relationship between language impairment and decline in other cognitive functions, with the literature currently inconclusive on how the nature and degree of language impairment relate to cognition or other measures of disease severity. In addition, little information is available on how language problems identified in experimental task set-ups relate to competency in self-generated language paradigms such as picture description, monologues or conversations. This study aimed to inform clinical management of language impairment in PD by exploring (1) language performance across a range of experimental as well as self-generated language tasks, (2) how the relationship between these two aspects might be affected by the nature of the cognitive and language assessment; and (3) to what degree performance can be predicted across the language tasks. Methods 22 non-demented people with PD (PwPD) and 22 healthy control participants performed a range of cognitive and language tasks. Cognitive tasks included a screening assessment in addition to tests for set shifting, short term memory, attention, as well as letter and category fluency. Language was investigated in highly controlled grammar tasks as well as a Sentence Generation and a Narrative. Results The study highlighted impaired ability in set-shifting and letter fluency in the executive function tasks, and a higher rate of grammatical and lexical errors across all language tasks in the PD group. The performance in the grammar task was linked to set shifting ability, but error rates in Sentence Generation and Narrative were independent of this. There was no relevant relationship between performances across the three language tasks. Conclusions Our results suggest that there is a link between executive function and language performance, but that this is task dependent in non-demented PwPD. This has implications for the management of language impairment in PD, both for assessment and for designing effective interventions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Lowit, Anja UNSPECIFIED orcid.org/0000-0003-0842-584X UNSPECIFIED Thies, Tabea UNSPECIFIED UNSPECIFIED UNSPECIFIED Steffen, Julia UNSPECIFIED UNSPECIFIED UNSPECIFIED Scheele, Franziska UNSPECIFIED UNSPECIFIED UNSPECIFIED Roheger, Mandy UNSPECIFIED UNSPECIFIED UNSPECIFIED Kalbe, Elke UNSPECIFIED UNSPECIFIED UNSPECIFIED Barbe, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-676028
DOI:	10.1371/journal.pone.0276218
Journal or Publication Title:	PLoS One
Volume:	17
Number:	10
Date:	2022
Publisher:	PUBLIC LIBRARY SCIENCE
Place of Publication:	SAN FRANCISCO
ISSN:	1932-6203
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language VERBAL FLUENCY; SENTENCE COMPREHENSION; NONDEMENTED PATIENTS; ACTION SEMANTICS; WORKING-MEMORY; EYE-TRACKING; SPEECH; HUNTINGTONS; PROGRESSION; GENERATION Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/67602