Back to Search
Start Over
Audiovisual speech segmentation in post-stroke aphasia: a pilot study.
Audiovisual speech segmentation in post-stroke aphasia: a pilot study.
- Source :
-
Topics in stroke rehabilitation [Top Stroke Rehabil] 2019 Dec; Vol. 26 (8), pp. 588-594. Date of Electronic Publication: 2019 Aug 01. - Publication Year :
- 2019
-
Abstract
- Background : Stroke may cause sentence comprehension disorders. Speech segmentation, i.e. the ability to detect word boundaries while listening to continuous speech, is an initial step allowing the successful identification of words and the accurate understanding of meaning within sentences. It has received little attention in people with post-stroke aphasia (PWA). Objectives : Our goal was to study speech segmentation in PWA and examine the potential benefit of seeing the speakers' articulatory gestures while segmenting sentences. Methods : Fourteen PWA and twelve healthy controls participated in this pilot study. Performance was measured with a word-monitoring task. In the auditory-only modality, participants were presented with auditory-only stimuli while in the audiovisual modality, visual speech cues (i.e. speaker's articulatory gestures) accompanied the auditory input. The proportion of correct responses was calculated for each participant and each modality. Visual enhancement was then calculated in order to estimate the potential benefit of seeing the speaker's articulatory gestures. Results : Both in auditory-only and audiovisual modalities, PWA performed significantly less well than controls, who had 100% correct performance in both modalities. The performance of PWA was correlated with their phonological ability. Six PWA used the visual cues. Group level analysis performed on PWA did not show any reliable difference between the auditory-only and audiovisual modalities (median of visual enhancement = 7% [Q1 - Q3: -5 - 39]). Conclusion : Our findings show that speech segmentation disorder may exist in PWA. This points to the importance of assessing and training speech segmentation after stroke. Further studies should investigate the characteristics of PWA who use visual speech cues during sentence processing.
- Subjects :
- Aged
Aphasia psychology
Aphasia rehabilitation
Cognition Disorders psychology
Cognition Disorders rehabilitation
Comprehension
Cues
Female
Gestures
Humans
Male
Middle Aged
Neuropsychological Tests
Photic Stimulation
Pilot Projects
Psychomotor Performance
Aphasia etiology
Cognition Disorders etiology
Speech Perception
Stroke complications
Subjects
Details
- Language :
- English
- ISSN :
- 1945-5119
- Volume :
- 26
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Topics in stroke rehabilitation
- Publication Type :
- Academic Journal
- Accession number :
- 31369358
- Full Text :
- https://doi.org/10.1080/10749357.2019.1643566