Neuroanatomical Correlates of Macrolinguistic Aspects in Narrative Discourse in Unilateral Left and Right Hemisphere Stroke: A Voxel-Based Morphometry Study

Autor/inn/en	Schneider, Fernanda; Marcotte, Karine; Brisebois, Amelie; Townsend, Sabrine Amaral Martins; Smidarle, Anderson Dick; Loureiro, Fernanda; da Rosa Franco, Alexandre; Bernardi Soder, Ricardo; Nikolaev, Alexandre; Porcello Marrone, Luiz Carlos; Hübner, Lilian Cristine
Titel	Neuroanatomical Correlates of Macrolinguistic Aspects in Narrative Discourse in Unilateral Left and Right Hemisphere Stroke: A Voxel-Based Morphometry Study
Quelle	In: Journal of Speech, Language, and Hearing Research, 64 (2021) 5, S.1650-1665 (16 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Marcotte, Karine)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Patients; Head Injuries; Neurological Impairments; Brain Hemisphere Functions; Socioeconomic Status; Language Processing; Foreign Countries; Clinical Diagnosis; Story Telling; Narration; Anatomy; Correlation; Brazil + Suchen Sie Ihr Suchwort? Patient; Kopfverletzung; Neurodegenerative Erkrankung; Socio-economic status; Sozioökonomischer Status; Sprachverarbeitung; Ausland; Anatomie; Korrelation; Brasilien
Abstract	Background: A growing body of literature has demonstrated the importance of discourse assessment in patients who suffered from brain injury, both in the left and right hemispheres, as discourse represents a key component of functional communication. However, little is known about the relationship between gray matter density and macrolinguistic processing. Purpose: This study aimed to investigate this relationship in a group of participants with middle-low to low socioeconomic status. Method: Twenty adults with unilateral left hemisphere (n = 10) or right hemisphere (n = 10) chronic ischemic stroke and 10 matched (age, education, and socioeconomic status) healthy controls produced three oral narratives based on sequential scenes. Voxel-based morphometry analysis was conducted using structural magnetic resonance imaging. Results: Compared to healthy controls, the left hemisphere group showed cohesion impairments, whereas the right hemisphere group showed impairments in coherence and in producing macropropositions. Cohesion positively correlated with gray matter density in the right primary sensory area (PSA)/precentral gyrus and the pars opercularis. Coherence, narrativity, and index of lexical informativeness were positively associated with the left PSA/insula and the superior temporal gyrus. Macropropositions were mostly related to the left PSA/insula and superior temporal gyrus, left cingulate, and right primary motor area/ insula. Discussion: Overall, the present results suggest that both hemispheres are implicated in macrolinguistic processes in narrative discourse. Further studies including larger samples and with various socioeconomic status should be conducted. (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