Across three separate investigations, this dissertation documents work examining the role of higher-order processes and cognitive effort during the top-down compensatory repair of degraded speech, specifically perceptual restoration. Perceptual restoration is a phenomenon where a listener can perceptually restore or repair speech…

Pulsed-wave Doppler ultrasound is a widely used technique for monitoring pregnancies. As ultrasound equipment becomes more advanced, it becomes harder to train practitioners to be proficient in the procedure as it requires the presence of an expert, access to high-tech equipment as well as several volunteering patients. Immersive environments such…

Nonverbal sound effects, such as background music and sound enhancements, have been widely used in children's eBooks; however, the impact of these effects on children's language learning remains inconclusive. This study examined Mandarin-English bilingual children's attention on sound-enhanced words during static eBook viewing. Fifty-seven 4-5…

This study examined the effectiveness of an ultrasound visual biofeedback (UVB) training on speech-language pathology (SLP) students' assessment of sonographic tongue configuration. This study examined the presence of a functional relation between an ultrasound visual biofeedback (UVB) training within the Participatory Adult Teaching Strategy…

Background: As cost and access barriers to ultrasound technology have decreased, interest in using ultrasound visual biofeedback (U-VBF) as a tool for remediating speech sound disorders (SSD) has increased. A growing body of research has investigated U-VBF in intervention for developmental SSD; however, diversity in study design, participant…

Purpose: This study investigated the efficacy of ultrasound biofeedback compared to a traditional acoustic input-only method in the second-language (L2) production training of English tense-lax vowel contrasts (/i-[near-close near-front unrounded vowel]/ and /e-[open-mid front unrounded vowel]/). The relationship between the degrees of production…

Purpose: This proof-of-concept study examined the effectiveness of an ultrasound visual biofeedback (UVB) training within the Participatory Adult Teaching Strategy framework for instructing speech-language pathologists (SLPs) on the assessment of sonographic tongue configuration for remediation of speech sound errors. Method: This research…

Purpose: This study aimed to identify predictors of response to treatment for residual speech sound disorder (RSSD) affecting English rhotics. Progress was tracked during an initial phase of traditional motor-based treatment and a longer phase of treatment incorporating ultrasound biofeedback. Based on previous literature, we focused on baseline…

Individuals with autism may engage in problem behavior in order to escape aversive stimuli, including various noises. In this study, an 18-year-old young man with autism had a history of engaging in problem behavior to escape aversive noise that was typical to his everyday environment. By using biofeedback, in the form of heart rate measurement,…