About this trial
The goal of this clinical trial is to test the effects of recursive self-feedback procedures on spontaneous speech production in stroke survivors with impaired speech production (aphasia). The main question it aims to answer is:
• To what extent can stroke survivors with aphasia use their self-feedback alone to improve their spontaneous speech production?
Participants will be engaged in the following activities:
* They will perform language and cognitive tasks. * Afterwards, they will receive treatments using tablets and headphones at no cost to them. * The experimental treatments (recursive self-feedback procedures) entails responding to prompts, listening to playbacks of their speech response and attempt to minimize/correct the errors in the next attempt. This process will be repeated multiple times per prompt. * The experimental treatments are two: an adaptive version that adapts the complexity of the treatment prompt and a non-adaptive version that does not adapt task complexity. * Researchers will compare the experimental treatments to see if both have similar effects on improving spontaneous speech production.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
6 months post left hemisphere stroke
Aphasia due to left hemisphere stroke
Dominant English speaker
Disqualifiers
Speech-language deficits due to neurological insults such as Parkinson's disease, neurodegenerative conditions etc.
Uncorrected sensory impairments.
Language comprehension impairment.
Severe cognitive impairment.
Trial design
Parallel
Treatments tested in this trial
Adaptive recursive self-feedback procedure
BehavioralThe intervention uses self-feedback alone to improve speech production. It adapts the complexity of the treatment tasks.
Non-adaptive recursive self-feedback procedure
BehavioralThe intervention uses self-feedback alone to improve speech production. However, it does not adapt the complexity of the treatment tasks.
Treatment groups
Trial outcomes
Primary outcomes
Speaking rate
Correct words produced per minute
Speech initiation latency in milliseconds
Latency before retrieving the first correct word in an utterance.
Sponsors and contacts
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University of South Florida
Lead sponsor
Center for Smart Use of Technologies to Assess Real-world Outcomes
Collaborator