Effects of Recursive Self-feedback on Speech Production in Aphasia

University of South Florida

Status: Not yet enrolling

Conditions: Stroke; Aphasia

Treatments: Behavioral: Adaptive recursive self-feedback procedure; Behavioral: Non-adaptive recursive self-feedback procedure

Study type: Interventional

Funder types: Other

Identifiers

NCT06323629

STUDY006201

Details and patient eligibility

About

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.

Enrollment: 45 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 6 months post left hemisphere stroke
• Aphasia due to left hemisphere stroke
• Dominant English speaker

Exclusion criteria

• 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

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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45 participants in 2 patient groups

Adaptive recursive self-feedback procedure

Experimental group

Description:

Using a tablet, participants listen to speech playback of their response to a prompt and self-correct/minimize their speech errors in a subsequent attempt. This process is looped multiple times per prompt. It adapts across narrative prompts with low and high complexities.

Treatment:

Behavioral: Adaptive recursive self-feedback procedure

Non-adaptive recursive self-feedback procedure

Experimental group

Description:

Using a tablet, participants listen to speech playback of their response to a prompt and self-correct/minimize their speech errors in a subsequent attempt. This process is looped multiple times per prompt. However, it only uses narrative prompts with high complexity.

Treatment:

Behavioral: Non-adaptive recursive self-feedback procedure