The Role of Verbal Short-Term Memory in Complex Sentence Comprehension: An Observational Study on Aphasia

Autor/inn/en	Gilardone, Giulia; Viganò, Mauro; Costantini, Giulio; Monti, Alessia; Corbo, Massimo; Cecchetto, Carlo; Papagno, Costanza
Titel	The Role of Verbal Short-Term Memory in Complex Sentence Comprehension: An Observational Study on Aphasia
Quelle	In: International Journal of Language & Communication Disorders, 58 (2023) 4, S.1182-1190 (9 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Gilardone, Giulia) ORCID (Viganò, Mauro)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1368-2822
DOI	10.1111/1460-6984.12851
Schlagwörter	Informed Consent; Aphasia; Short Term Memory; Verbal Communication; Verbal Stimuli; Sentences; Comprehension; Difficulty Level; Observation; Interaction; Grammar; Control Groups + Suchen Sie Ihr Suchwort? Expressive Aphasie; Aphasie; Kurzzeitgedächtnis; Sentence analysis; Satzanalyse; Verstehen; Verständnis; Schwierigkeitsgrad; Beobachtung; Interaktion; Grammatik
Abstract	Background: The comprehension profile of people with agrammatism is a debated topic. Syntactic complexity and cognitive resources, in particular phonological short-term memory (pSTM), are considered as crucial components by different interpretative accounts. Aim: To investigate the interaction of syntactic complexity and of pSTM in sentence comprehension in a group of persons with aphasia with and without agrammatism. Methods & Procedures: A cohort of 30 participants presenting with aphasia was assessed for syntactic comprehension and for pSTM. A total of 15 presented with agrammatism and 15 had fluent aphasia. Outcomes & Results: Linear nested mixed-model analyses revealed a significant interaction between sentence type and pSTM. In particular, participants with lower pSTM scores showed a reduced comprehension of centre-embedded object relatives and long coordinated sentences. Moreover, a significant interaction was found between sentence type and agrammatism, with a lower performance for passives within the agrammatic group. Conclusions & Implications: These results confirm that pSTM is involved in the comprehension of complex structures with an important computational load, in particular coordinated sentences, and long-distance filler gap dependencies. On the contrary, the specific deficit of the agrammatic group with passives is a pure syntactic deficit, with no involvement of pSTM. (As Provided).
Anmerkungen	Wiley. Available from: John Wiley & Sons, Inc. 111 River Street, Hoboken, NJ 07030. Tel: 800-835-6770; e-mail: cs-journals@wiley.com; Web site: https://www.wiley.com/en-us
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01