Global Coherence and Cognition in Parkinson's Disease

Autor/inn/en	Rogalski, Yvonne; Key-DeLyria, Sarah E.; Hazamy, Audrey; Altmann, Lori J. P.
Titel	Global Coherence and Cognition in Parkinson's Disease
Quelle	In: Journal of Speech, Language, and Hearing Research, 65 (2022) 8, S.2962-2977 (16 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Rogalski, Yvonne) ORCID (Key-DeLyria, Sarah E.) ORCID (Hazamy, Audrey) ORCID (Altmann, Lori J. P.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Neurological Impairments; Older Adults; Cognitive Ability; Cognitive Processes; Short Term Memory; Inhibition; Communication Skills; Language Impairments; Interference (Learning); Reaction Time; Visual Stimuli; Florida; Stroop Color Word Test + Suchen Sie Ihr Suchwort? Neurodegenerative Erkrankung; Älterer Erwachsener; Denkfähigkeit; Cognitive process; Kognitiver Prozess; Kurzzeitgedächtnis; Hemmung; Kommunikationsstil; Speech disorder; Speech disorders; Speech disabilities; Speech disability; Speech handicap; Speech handicaps; Speech impairment; Speech impairments; Language handicaps; Sprachbehinderung; Reaktionsvermögen
Abstract	Purpose: This study compared global coherence (GC) in individuals with Parkinson's disease (PD) to a healthy older adult (HOA) group during single (sitting) and dual (stationary cycling) tasks. Additionally, it explored the relationship between GC and cognition in PD. Method: Thirty-seven individuals with PD and 19 HOAs participated in the prospective, cross-sectional study. Participants completed discourse monologues elicited using published prompts while seated and while pedaling a stationary bicycle. Four rating levels of GC were analyzed (GC1 = no relationship to the topic, GC2 = remote relationship, GC3 = conditional relationship, and GC4 = complete relationship) using a published protocol with good interrater reliability and test-retest stability. Participants completed a battery of cognitive tasks, from which four latent factors were extracted: processing speed, working memory, inhibition, and updating. Results: Linear mixed modeling identified significant effects of GC level and GC level interactions with group, processing speed, and inhibition. The Group × GC Level interaction reflected that the PD group had a higher proportion of GC2 and GC1 utterances and fewer GC4 utterances than the HOA group. No differences between single and dual task conditions were found. Faster speed of processing predicted more GC4 utterances, whereas slower speed of processing predicted more G1 utterances. Better inhibition predicted fewer GC2 utterances. Group also predicted GC4 and GC2 proportions. Conclusions: Individuals with PD experienced greater difficulties with GC than HOAs. Processing speed and inhibition contributed significantly to GC across groups. Analysis of GC should be considered an informative addition to assessment of communicative effectiveness in PD. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01