Effects of Recursive Self-feedback on Speech Production in Aphasia

ConditionsAphasiaStroke
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-80
SponsorUniversity of South Florida

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 volunteers

Qualifiers

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

Design model

Parallel

Treatments tested in this trial

  • Adaptive recursive self-feedback procedure

    Behavioral

    The intervention uses self-feedback alone to improve speech production. It adapts the complexity of the treatment tasks.

  • Non-adaptive recursive self-feedback procedure

    Behavioral

    The intervention uses self-feedback alone to improve speech production. However, it does not adapt the complexity of the treatment tasks.

Treatment groups

45 Participants
are divided into 2 treatment groups
Group A: Adaptive recursive self-feedback procedureExperimental treatment 1 intervention
Group B: Non-adaptive recursive self-feedback procedureExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Speaking rate

Correct words produced per minute

Time frame
Within 1 week before treatment and within 1 week after treatment.
2

Speech initiation latency in milliseconds

Latency before retrieving the first correct word in an utterance.

Time frame
Within 1 week before treatment and within 1 week after treatment.

Secondary outcomes

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of South Florida

Lead sponsor

Center for Smart Use of Technologies to Assess Real-world Outcomes

Collaborator