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Neuroanatomical correlates of macrostructural receptive abilities in narrative discourse in unilateral left hemisphere stroke: A behavioural and voxel-based morphometry study
CONCLUSIONS & IMPLICATIONS: The present results suggest that retelling and comprehension of auditory and written narratives are relatively well-preserved in individuals with a LH stroke without significant aphasia, but poorer than in HC. The findings replicate previous studies conducted in groups with higher levels of education and SES both at the behavioural and neural levels. Considering that naming seems to be associated with narrative retell and comprehension in individuals with lower SES and education, this research provides evidence on the importance of pursuing further studies including larger samples with and witho...
Source: International Journal of Language and Communication Disorders - November 30, 2022 Category: Speech-Language Pathology Authors: Sabrine Amaral Martins Townsend Karine Marcotte Amelie Brisebois Anderson Dick Smidarle Fernanda Schneider Fernanda Loureiro Ricardo Bernardi Soder Alexandre da Rosa Franco Luiz Carlos Porcello Marrone Lilian Cristine H übner Source Type: research

Brain Activation Site of Laryngeal Elevation During Swallowing: An fMRI Study
AbstractThe object of this study is to investigate dysphagia caused by reduced laryngeal elevation in patients poststroke. The central mechanism of laryngeal elevation during swallowing was explored by comparing the brain activation area before and after treatment with that of healthy subjects. The treatment group included patients diagnosed with dysphagia poststroke that showed reduced laryngeal elevation. They were treated with electrical stimulation at the motor points of the muscles related to laryngeal elevation. Functional magnetic resonance imaging (fMRI) using the blood oxygenation level-dependent (BOLD) was used t...
Source: Dysphagia - June 27, 2022 Category: Speech-Language Pathology Source Type: research

Neuroanatomical Correlates of Macrolinguistic Aspects in Narrative Discourse in Unilateral Left and Right Hemisphere Stroke: A Voxel-Based Morphometry Study
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 ...
Source: Journal of speech, language, and hearing research : JSLHR - April 12, 2021 Category: Speech-Language Pathology Authors: Fernanda Schneider Karine Marcotte Amelie Brisebois Sabrine Amaral Martins Townsend Anderson Dick Smidarle Fernanda Loureiro Alexandre da Rosa Franco Ricardo Bernardi Soder Alexandre Nikolaev Luiz Carlos Porcello Marrone Lilian Cristine H übner Source Type: research

Resting-State Functional Magnetic Resonance Imaging Connectivity Between Semantic and Phonological Regions of Interest May Inform Language Targets in Aphasia.
Conclusions Network connectivity of brain regions associated with semantic-phonological processing is predictive of language performance in poststroke aphasia. The most predictive connections involved right-hemisphere ROIs-particularly those for which structural adaptions are known to associate with recovered word retrieval performance. Predictions may be made, based on these findings, about which connections have potential as targets for neuroplastic functional changes with intervention in aphasia. Supplemental Material https://doi.org/10.23641/asha.12735785. PMID: 32755498 [PubMed - as supplied by publisher]
Source: Journal of speech, language, and hearing research : JSLHR - August 4, 2020 Category: Speech-Language Pathology Authors: Ramage AE, Aytur S, Ballard KJ Tags: J Speech Lang Hear Res Source Type: research

Association Among Age-Related Tongue Muscle Abnormality, Tongue Pressure, and Presbyphagia: A 3D MRI Study
AbstractMuscle aging such as sarcopenia adversely affects motor activities. However, few studies have elucidated the aging physiological mechanism of tongue concerted with the changes muscle composition. The present study aimed to examine the tongue composition changes to detect the effect of tongue fat mass on tongue pressure and swallowing function with aging. Twenty community-dwelling elderly without head and neck cancer, stroke, or neuromuscular disease and 20 healthy young were included. Tongue volume, tongue fat mass, tongue lean muscle mass, and tongue fat percentage were evaluated with 3D magnetic resonance imaging...
Source: Dysphagia - August 1, 2020 Category: Speech-Language Pathology Source Type: research

Cortical and Subcortical Control of Swallowing-Can We Use Information From Lesion Locations to Improve Diagnosis and Treatment for Patients With Stroke?
Conclusions Stroke lesion locations have been identified that are commonly associated across patients with the occurrence and recovery of dysphagia, suggesting that clinical brain scans provide useful information for improving the diagnosis and treatment of patients with stroke. However, individual differences in brain structure and function limit the generalizability of these relationships and emphasize that the extent of the motor and sensory pathology in swallowing, and how the patient recovers, also depends on a patient's individual brain constitution. The involvement of the damaged brain tissue in swallowing control b...
Source: American Journal of Speech-Language Pathology - July 9, 2020 Category: Speech-Language Pathology Authors: Wilmskoetter J, Daniels SK, Miller AJ Tags: Am J Speech Lang Pathol Source Type: research

Functional Near-Infrared Spectroscopy in the Study of Speech and Language Impairment Across the Life Span: A Systematic Review.
Conclusions Though it is not without inherent challenges, fNIRS may have advantages over other neuroimaging techniques in the areas of speech and language impairment. fNIRS has clinical applications that may lead to improved early and differential diagnosis, increase our understanding of response to treatment, improve neuroprosthetic functioning, and advance neurofeedback. PMID: 32640168 [PubMed - as supplied by publisher]
Source: American Journal of Speech-Language Pathology - July 7, 2020 Category: Speech-Language Pathology Authors: Butler LK, Kiran S, Tager-Flusberg H Tags: Am J Speech Lang Pathol Source Type: research

Brain-Derived Neurotrophic Factor Genotype-Specific Differences in Cortical Activation in Chronic Aphasia.
Conclusion BDNF genotype mediates cortical brain activation in individuals with chronic aphasia. Correspondingly, individuals carrying the Met allele present with more severe aphasia compared to noncarriers. These findings warrant further study into the effects of BDNF genotype in aphasia. Supplemental Material https://doi.org/10.23641/asha.10073147 Presentation Video https://doi.org/10.23641/asha.10257581. PMID: 31756156 [PubMed - in process]
Source: Journal of speech, language, and hearing research : JSLHR - November 21, 2019 Category: Speech-Language Pathology Authors: Kristinsson S, Yourganov G, Xiao F, Bonilha L, Stark BC, Rorden C, Basilakos A, Fridriksson J Tags: J Speech Lang Hear Res Source Type: research

Lesion-aphasia discordance in acute stroke among Bengali-speaking patients: Frequency, pattern, and effect on aphasia recovery
ConclusionLesion-aphasia discordance following acute stroke is not uncommon among Bengali-speaking subjects. In the discordant group, preponderance towards non-fluent aphasia was observed. Discordance occurred more frequently after hemorrhagic stroke. Subjects with lesion-discordant aphasia presented better recovery during early post-stroke phase.
Source: Journal of Neurolinguistics - July 29, 2019 Category: Speech-Language Pathology Source Type: research

The Relationship Between Lesion Localization and Dysphagia in Acute Stroke
AbstractFactors that can facilitate early identification of individuals at risk of dysphagia such as stroke location are potentially of great benefit. The aim of this study was to examine the role of hemisphere and lesion location in assessing dysphagia pattern and airway invasion as identified through the use of validated, standardized interpretation measures for the videofluoroscopic swallowing study. Consecutive patients (N = 80) presenting with stroke symptoms who had a first-time acute ischemic stroke confirmed on diffusion-weighted magnetic resonance imaging (DW-MRI) scan participated. Three swallowing outcome vari...
Source: Dysphagia - July 26, 2017 Category: Speech-Language Pathology Source Type: research

Periventricular White Matter Lesions as a Prognostic Factor of Swallowing Function in Older Patients with Mild Stroke
AbstractOlder patients with stroke have poor functional prognosis compared to younger patients. Patients with stroke who have severe white matter (WM) lesions have been reported to have poor functional prognosis such as cognitive dysfunction, increased propensity for falling, and gait and balance problems. The aim of this study was to determine whether WM lesions exert negative effects on swallowing function in older patients with mild stroke. We conducted a retrospective analysis of 63 patients aged  >65  years who had a National Institutes of Health Stroke Scale score ≤5 and who underwent videofluoroscopic swallo...
Source: Dysphagia - March 27, 2017 Category: Speech Therapy Source Type: research

Differences in Videofluoroscopic Swallowing Study (VFSS) Findings According to the Vascular Territory Involved in Stroke
Abstract Dysphagia affects up to half of stroke patients and increases the risk of pneumonia and fatal outcomes. In order to assess swallowing difficulty, videofluoroscopic swallowing study (VFSS) has traditionally been the gold standard. The purpose of this study was to compare the patterns of post-stroke swallowing difficulties according to the vascular territories involved in the stroke. One hundred and three patients who were diagnosed with first ischemic stroke by brain magnetic resonance imaging and had swallowing difficulty were included in this study. Location of the stroke was classified into three group...
Source: Dysphagia - August 1, 2014 Category: Speech Therapy Source Type: research