View clinical trials related to Aphasia.
Filter by:The aim of this study is to create a repository of both cross-sectional and longitudinal data, including cognitive, linguistic, imaging and biofluid biological specimens, for neurodegenerative disease research and treatment.
Speech-language therapy is generally found to be helpful in the rehabilitation of aphasia. However, not all patients with aphasia have access to adequate treatment to maximize their recovery. The goal of this project is to compare the efficacy of telerehabilitation or Aphasia Remote Therapy (ART) to the more traditional In-Clinic Therapy (I-CT).
The present study aims to investigate the short- and long-term effects of two weeks of intensive speech-language pathology intervention with additional physiotherapy, on aphasia and apraxia of speech (AOS) and their neural correlates in thirty persons with chronic stroke. Changes are studied following intensive treatment of aphasia and AOS with standardised speech-language testing and testing of communication and with voxel-based morphometry (VBM) analysis and resting state functional connectivity (rsFC).
Every year, approximately 100,000 people are diagnosed with aphasia-a language disorder leading to substantial difficulties in their daily communication. Based on the observation that many people with aphasia can sing words that they otherwise cannot speak, melodic intonation therapy (MIT) was developed in the 1970s. Although recognized as a standard aphasia treatment, the neural mechanisms of MIT have been largely unexplored. Our first goal is to identify the active ingredient of the music intervention. Although rhythm has long been considered secondary to melody, recent evidence has challenged this notion by demonstrating that rhythm alone is sufficient enough to facilitate improvements in speech fluency for people with aphasia. To corroborate the positive role of rhythm, we will train aphasic patients to leverage "rhythmic groove" for sets of sentences/phrases delivered through a fun and engaging video gaming platform. This intervention emerges from the theoretical framework, built from neuroimaging data, that language processes heavily rely on neural resources within the sensorimotor and fronto-striatal circuits that subserve rhythm/timing processes. Our second goal is to characterize the neural plasticity associated with language recovery promoted by the novel rhythm-based therapy. We hypothesize that neuroplasticity will manifest itself as increased white matter tracts, presumably due to changes in myelination in either ipsilateral or contralateral (homologues) language areas. To effectively measure myelin white matter fraction (MWF) in candidate tracts, we will mainly use a patented Laplace-transformed relaxation MRI technique. Additionally, we will measure resting-state functional connectivity using BOLD (Blood Oxygen-Level Dependent) fMRI. Lastly, we will attempt to record cortical activity using fNIRS (functional Near-Infrared Spectroscopy) during the pre-post behavioral assessments. Taken together, the proposed interdisciplinary research has theoretical, methodological, and clinical innovations and significance. This exploratory work will serve as a critical stepping stone toward unraveling the therapeutic component of music in neurological disorders and will provide evidence-based guidance to the clinicians and therapists.
This is a double-blind, sham-controlled, crossover study in which subjects with the non-fluent/agrammatic and semantic variants of primary progressive aphasia (naPPA and svPPA, respectively) will undergo language testing and structural and functional brain imaging before and after receiving 10 semi-consecutive daily sessions of real or sham transcranial direct current stimulation (tDCS) paired with modified constraint-induced language therapy (mCILT). Language testing and brain imaging will be repeated immediately after completion of and up-to 24 weeks following completion of treatment. The investigators will examine changes in language performance induced by tDCS + mCILT compared to sham tDCS + mCILT. The investigators will also use network science to analyze brain imaging (fMRI) data to identify network properties associated with baseline PPA severity and tDCS-induced changes in performance. This study will combine knowledge gained from our behavioral, imaging, and network data in order to determine the relative degrees to which these properties predict whether persons with PPA will respond to intervention.
SEMO is a multidisciplinary project (language sciences, cognitive psychology and neuropsychology, physical medicine and rehabilitation, neurology, speech-language pathology, functional neuroimaging and engineering sciences) that aims first, to test and develop a novel speech rehabilitation program designed for patients with non-fluent aphasia and, second, to better describe neural reorganization after successful recovery. To this end, the investigators will conduct a prospective monocentric cross-over study, including two cohorts of post-stroke aphasic patients and two control groups.
62 patients who are one year post stroke and have Aphasia as a result of that stroke will be recruited. Participants will have 4 assessment sessions and 15 treatment sessions. The TDCS will be to right Inferior Frontal Gyrus (IFG) (25 active, 25 sham) for 15 days. A combined semantic feature analysis/phonological components analysis treatment will be paired with the stimulation. Two assessment sessions will be pretreatment, 1 session immediately post-treatment, and 1 session at 3 months follow-up.
This study will assess the effects of transcranial alternating current stimulation (tACS) on language recovery after stroke as well as healthy language functions.
ARTFL LEFFTDS Longitudinal Frontotemporal Lobar Degeneration (ALLFTD) represents the formalized integration of ARTFL (U54 NS092089; funded through 2019) and LEFFTDS (U01 AG045390; funded through 2019) as a single North American research consortium to study FTLD for 2019 and beyond.
At present, functional imaging studies have suggested that the Geschwind's territory (the inferior parietal lobe) is an important language area. It is the hub for semantics and phonetic language processing. However, the type and mechanism of aphasia after injury of Geschwind's territory and the subsequent recovery of language are still unclear. In our study based on brain injury model of brain arteriovenous malformation (BAVMs) resection, investigators found that the incidence of aphasia was higher after the injury of Geschwind's territory than after injury of the classical language area, and the type of aphasia was complicated, while the recovery rate of language disorder was high during follow-up. Investigators hypothesized that the type of aphasia may be associated with the type of brain connectivity damaged, and that reorganization of brain connections and brain network promote the recovery of language function. In this study, we aim to investigate the types of aphasia and their corresponding brain network changes after the resection of BAVMs located in the Geschwind's territory. Investigators will evaluate language function and collect multimodality images of the patients before resection of the lesions, as well as 7 days, 3 months and 6 months afterwards. In addition, the anatomical brain connectivity and brain network will also be analyzed. Our research will not only be a meaningful exploration for mechanisms of human language function damage and reorganization, but will also provide an important basis for the protection of brain function in neurosurgery.