Visual Feedback for Speech

(PVF Trial)

This trial explores how individuals use hearing and physical sensation to monitor their speech and whether visual feedback can enhance this process. Participants will perform speech tasks with altered sounds through headphones, sometimes accompanied by a visual display of their speech signal. The study aims to determine if visual feedback, known as Altered Auditory Feedback (AAF), assists those who rely more on hearing or physical sensation during speech. English-speaking adults aged 18 to 45 with no significant history of speech, language, or hearing issues may find this trial suitable. As an unphased trial, it offers participants the chance to contribute to foundational research that could improve speech therapy techniques.

The trial information does not specify whether you need to stop taking your current medications.

Past studies have shown that altered auditory feedback (AAF) is generally safe. Research has found that it can reduce stuttering in both adults and children without major side effects. Some individuals might experience minor speech interruptions or changes in speech speed, but these effects typically do not last long.

Visual-acoustic biofeedback, another component of the study, is also considered safe. Studies indicate that this method can improve speech without causing harm. It is often used to assist those who struggle with certain speech sounds and is generally well-tolerated.

Researchers are excited about the Altered Auditory Feedback (AAF) technique because it offers a novel approach to improving speech by incorporating visual feedback. Unlike traditional speech therapy methods that focus solely on auditory cues, this technique enhances the experience with real-time visual-acoustic biofeedback. This combination allows individuals to see and hear their speech patterns simultaneously, potentially speeding up the learning process and leading to faster improvements in speech clarity. This dual feedback mechanism could revolutionize how we approach speech therapy, making it more interactive and effective.

Research has shown that altering how people hear their own speech, known as altered auditory feedback (AAF), can quickly enhance fluency. Studies have found that AAF can reduce stuttering by 50-85% during reading tasks. This method changes the way individuals hear themselves, promoting smoother speech. In this trial, participants will experience AAF both with and without visual feedback.