A longitudinal study of narrative discourse in post-stroke aphasia

Brisebois, Amélie; Brambati, Simona Maria; Boucher, Johémie; Rochon, Elizabeth; Léonard, Carol; Désilets-Barnabé, Marianne; Désautels, Alex; Marcotte, Karine

doi:10.1080/02687038.2021.1907295

Cited by 8 publications

(14 citation statements)

References 67 publications

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“…Briefly, we demonstrated that the TUs score in picture description is sensitive to language impairment and appears related to overall language measure (i.e. a composite score composed of lexico-semantic, comprehension and repetition tasks; García et al, 2020) in both acute and chronic stages of recovery in post-stroke aphasia (Brisebois et al, 2020(Brisebois et al, , 2021. Conversely, very few microstructural variables showed the same qualities.…”

Section: Introductionmentioning

confidence: 84%

“…We expected similar results across the two modalities based on previous findings (Georgeadis et al, 2004;Turkstra et al, 2012). Second, it aimed to continue the exploration of the TUs checklist that we have recently developed (Brisebois et al, , 2021. We expected that each TUs would be produced by a similar proportion of participants in both the in-person group and videoconference group.…”

Section: Introductionmentioning

confidence: 86%

“…Extracted grammatical/syntactic complexity were measured by the mean length of utterance (MLU), the number of verbs/utterance, noun-to-verb ratio and propositional density (Brown et al, 2008). A separate script on CLAN was used for the Moving Average Token-Type Ratio (MATTR; Covington, 2007), which is commonly used to measure lexical diversity (e.g., Brisebois et al, 2020Brisebois et al, , 2021 and has the advantage of being independent of the length of the corpus. Finally, reformulations and repetitions were also extracted to measure discourse fluency.…”

Section: Microstructural Variablesmentioning

confidence: 99%

“…Lately, our research team documented in-person performance of thematic informativeness in individuals with aphasia speaking Canadian French (Brisebois et al, 2020(Brisebois et al, , 2021 using the picture description task (i.e. picnic scene) from the Western Aphasia Battery-Revised (Kertesz, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Validation of Videoconference Administration of Picture Description From the Western Aphasia Battery–Revised in Neurotypical Canadian French Speakers

Marcotte

Lachance

Brisebois

et al. 2022

Am J Speech Lang Pathol

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Purpose: During the COVID-19 pandemic, clinicians and researchers have increasingly used remote online assessments to pursue their activities, but mostly with tests not validated for videoconference administration. This study aims to validate the remote online administration of picture description in Canadian French neurotypical speakers and to explore the thematic unit (TU) checklist recently developed. Method: Spoken discourse elicited through the picture description task of the Western Aphasia Battery–Revised (WAB-R) was collected from Canadian French neurotypical speakers from Québec aged between 50 and 79 years old. Forty-seven participants completed the task in person, and 49 participants completed the task by videoconference. Videos of each discourse sample were transcribed using CHAT conventions. Microstructural variables were extracted using the CLAN (Computerized Language ANalysis) program, whereas thematic informativeness was scored for each sample using TUs. Chi-square tests were conducted to compare both groups on each TU; t tests were also performed on the total score of TUs and microstructural variables. Results: Groups were matched on sex, age, and education variables. The t tests revealed no intergroup difference for the total TU score and for the microstructural variables (e.g., mean length of utterances and number of words per minute). Chi-square tests showed no significant intergroup difference for all 16 TUs. Conclusions: These findings support remote online assessment of the picnic scene of the WAB-R picture description in Canadian French neurotypical speakers. These results also validate the 16 TUs most consistently produced. The use of videoconference could promote and improve the recruitment of participants who are usually less accessible, such as people using assistive mobility technologies. Supplemental Material: https://doi.org/10.23641/asha.21476961

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Section: Introductionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 86%

Section: Microstructural Variablesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Validation of Videoconference Administration of Picture Description From the Western Aphasia Battery–Revised in Neurotypical Canadian French Speakers

Marcotte

Lachance

Brisebois

et al. 2022

Am J Speech Lang Pathol

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“…Collecting multiple discourse tasks (e.g., personal narrative, story retell or picture description) is essential to reveal discourse competencies in post-stroke patients because it allows for a better representation of actual language use (Brookshire & Nicholas, 1994). Still, most studies investigating discourse, including ours (Brisebois et al, 2020(Brisebois et al, , 2022, report only one type of task (Bryant et al, 2016), which may provide an incomplete profile of the individuals' discourse processing skills (Sherratt & Bryan, 2019).…”

Section: Assessing Multiple Tasks In Discourse Analysismentioning

confidence: 99%

The longitudinal trajectory of discourse from the hyperacute to the chronic phase in mild to moderate poststroke aphasia recovery: A case series study

Brisebois

Brambati

Rochon

et al. 2023

Intl J Lang & Comm Disor

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Background Discourse analysis has recently received much attention in the aphasia literature. Even if post‐stroke language recovery occurs throughout the longitudinal continuum of recovery, very few studies have documented discourse changes from the hyperacute to the chronic phases of recovery. Aims To document a multilevel analysis of discourse changes from the hyperacute phase to the chronic phase of post‐stroke recovery using a series of single cases study designs. Methods & Procedures Four people with mild to moderate post‐stroke aphasia underwent four assessments (hyperacute: 0–24 h; acute: 24–72 h; subacute: 7–14 days; and chronic: 6–12 months post‐onset). Three discourse tasks were performed at each time point: a picture description, a personal narrative and a story retelling. Multilevel changes in terms of macro‐ and microstructural aspects were analysed. The results of each discourse task were combined for each time point. Individual effect sizes were computed to evaluate the relative strength of changes in an early and a late recovery time frame. Outcomes & Results Macrostructural results revealed improvements throughout the recovery continuum in terms of coherence and thematic efficiency. Also, the microstructural results demonstrated linguistic output improvement for three out of four participants. Namely, lexical diversity and the number of correct information units/min showed a greater gain in the early compared with the late recovery phase. Conclusions & Implications This study highlights the importance of investigating all discourse processing levels as the longitudinal changes in discourse operate differently at each phase of recovery. Overall results support future longitudinal discourse investigation in people with post‐stroke aphasia. What This Paper Adds What is already known on the subjectMulti‐level discourse analysis allows for in‐depth analysis of underlying discourse processes. To date, very little is known on the longitudinal discourse changes from aphasia onset through to the chronic stage of recovery. This study documents multi‐level discourse features in four people with mild to moderate aphasia in the hyperacute, acute, subacute and chronic stage of post‐stroke aphasia recovery. What this paper adds to existing knowledgeThe study found that most discourse variables demonstrated improvement throughout time. Macrostructural variables of coherence and thematic units improved throughout the continuum whereas microstructural variables demonstrated greater gains in the early compared to the late period of recovery. What are the potential or actual clinical implications of this work?This study suggests that multilevel discourse analysis will allow a better understanding of post‐stroke aphasia recovery, although more research is needed to determine the clinical utility of these findings. Future research may wish to investigate longitudinal discourse recovery in a larger sample of people with aphasia with heterogenous aphasia profiles and severities.

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Clinically Feasible Analysis of Discourse: Current State and Looking Forward

Dalton,

Richardson

2023

Spoken Discourse Impairments in the Neurogenic Populations

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A longitudinal study of narrative discourse in post-stroke aphasia

Cited by 8 publications

References 67 publications

Validation of Videoconference Administration of Picture Description From the Western Aphasia Battery–Revised in Neurotypical Canadian French Speakers

Validation of Videoconference Administration of Picture Description From the Western Aphasia Battery–Revised in Neurotypical Canadian French Speakers

The longitudinal trajectory of discourse from the hyperacute to the chronic phase in mild to moderate poststroke aphasia recovery: A case series study

Clinically Feasible Analysis of Discourse: Current State and Looking Forward

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