NCT03645265

Rhythmic Entrainment in Bilingual Speakers With Dysarthria

• Status: Terminated
• Phase: N/A
• Study type: Interventional
• Enrollment: 6 (actual)
• Sponsor: Herbert H. Lehman College, City University of New York · Academic / Other
• Sex: All
• Age: 21 Years
• Healthy volunteers: Accepted

Summary

The objectives of this study are to determine i) the effect of rhythmic entrainment of speech with hand gestures and auditory rhythmic cues on intelligibility and speech naturalness in Spanish-accented speakers of English in two pathology groups: ataxic dysarthria and hypokinetic dysarthria secondary to idiopathic Parkinson's disease; and ii) the extent to which speech rate and effort are control parameters of entrainment. These objectives will be achieved with the following specific aims: Specific Aim 1: Determine the effect of three rates of hand gestures and auditory rhythmic cues and the degree to which learning and carry-over occur. Specific Aim 2: Determine the effect of increased speech effort, operationalized as clear speech, and the interaction effect of clear speech with hand gestures and auditory rhythmic cues. Specific Aim 3: Investigate the perception of speech rhythm and its relationship to entrainment.

Detailed description

The objectives of this study are to determine i) the effect of rhythmic entrainment of speech with hand gestures and auditory rhythmic cues on intelligibility and speech naturalness in Spanish-accented speakers of English in two pathology groups: ataxic dysarthria and hypokinetic dysarthria secondary to idiopathic Parkinson's disease; and ii) the extent to which speech rate and effort are control parameters of entrainment. These objectives will be achieved with the following specific aims: Specific Aim 1: Determine the effect of three rates of hand gestures and auditory rhythmic cues and the degree to which learning and carry-over occur. Specific Aim 2: Determine the effect of increased speech effort, operationalized as clear speech, and the interaction effect of clear speech with hand gestures and auditory rhythmic cues. Specific Aim 3: Investigate the perception of speech rhythm and its relationship to entrainment. The protocol calls for 12 talkers to participate in a single case experimental design: 6 Spanish-accented speakers of English and 6 native English speakers, and each language group consisting of 2 healthy controls, 2 adults diagnosed with ataxic dysarthria and 2 adults diagnosed with hypokinetic dysarthria secondary to idiopathic Parkinson's disease. Sixty monolingual healthy adult listeners will rate intelligibility, accentedness, and ease of understanding.

Conditions

• Parkinson Disease
• Ataxia

Interventions

Type	Name	Description
BEHAVIORAL	Auditory	Use of auditory cues to improve speech production
BEHAVIORAL	Gestures	Use of gestures to improve speech production

Timeline

• Start date: 2018-09-01
• Primary completion: 2019-02-20
• Completion: 2019-02-20
• First posted: 2018-08-24
• Last updated: 2019-02-26

Locations

1 site across 1 country: United States