Speech Production & Perception Lab

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Speech Production & Perception Lab

Welcome to the Speech Production and Perception Laboratory!

Research in the Speech Production and Perception Lab examines dysarthria and its treatment across languages. Our goal is to generate and test much-needed effective, evidence-based treatments that will help individuals with dysarthria from various language backgrounds speak more intelligibly and thus experience a better quality of life.

 

We take a three-step approach to studying dysarthria in children with cerebral palsy (CP) who speak English, French, or Korean and in adults with Parkinson’s Disease (PD) who speak English, Spanish or Mandarin. Theoretically- and clinically-important questions include how phonological characteristics of a language may modulate effectiveness of given treatment strategies. The first step of this research is to examine predictors of intelligibility in a particular language. The second involves cueing (or stimulability) studies in which we model and cue various techniques for speech production and examine the speakers’ immediate responses to stimuli. The third step involves explorations beyond cueing studies to testing longer term effects of treatments for dysarthria.

Below our research is situated within these steps within this programmatic line of research. Further references are available in the “Publications and Presentations” tab.

Investigation of Dysarthria Treatment Across Languages
  Cerebral Palsy Parkinson Disease
Step 1—Predictors of intelligibility

Korean

  • Chang et al. (in progress)

Mandarin

  • Hsu et al. (2017). JASA-EL
Step 2—Stimulability/Cueing

English

  • Levy et al. (2017), JSLHR
  • Acoustic predictors of intelligibility changes (in progress)

French

  • Levy et al. (2020) IJLCD

Korean

  • Chang et al. (in progress)

Spanish

  • Moya-Galé et al. (in preparation for submission)

Mandarin

  • Hsu et al. (2019), AJSLP
Step 3—Speech treatment

English

  • Levy et al. (Submitted for publication)

French

  • Moya-Galé et al. (Submitted for publication)

English

  • Levy et al. (2020), Lancet’s EClinicalMedicine  

Spanish

  •  Moya-Galé et al. (2018), AJSLP

Mandarin

  • Hsu et al. (in preparation for submission)

Please note that recruitment has been put on hold because of COVID 19; however, please feel free to contact us (cpspeech@tc.columbia.edu) so that we can reach out when we are able to resume the study. We are recruiting children with and without cerebral palsy (4-17 years old) for speech testing. They will try using different research-based techniques for improving their speech communication and we will hear how they sound. We will provide feedback to parents. All participant information is kept completely confidential. You will be paid $50 for your time and effort. Please see our website at www.tc.columbia.edu/spplab and contact us at cpspeech@tc.columbia.edu or (212) 678-6656 to see if your child may qualify. Study takes place at Teachers College, Columbia University (120th Street) and takes up to 2 hours.
TC IRB Protocol #14-245

Speech Testing Flyer_Dec2019

 

 

More From Speech Production and Perception Laboratory

Contact Us

Speech Production & Perception Lab

Teachers College, Columbia University
Box: 5 * Location: 1150 Thorndike Hall
525 W 120th Street, New York, New York 10027-6696

Director: Erika S. Levy, Ph.D. * Phone: (212) 678-6656 * Email: cpspeech@tc.columbia.edu

Goals

The goals of our research are to better understand patterns of speech production in individuals with motor speech disorders from various language backgrounds and to develop language-specific or more general remediation strategies, when needed, for increasing intelligibility. Children with motor speech disorders are particularly under-represented in speech treatment research. An aim of the Speech Production and Perception Lab is to contribute important scientific knowledge on effective techniques for improving speech intelligibility in children with dysarthria. We develop and test Speech Intelligibility Treatment (Levy, 2014; 2018), a dual-focus treatment designed to increase intelligibility. Findings from this project will serve as evidence on which to base clinical practice

We aim to recreate natural speech patterns as much as possible within the laboratory setting. A theme of this research has been the investigation of utterances in continuous speech, in which neighboring vowels and consonants affect each other’s pronunciation, as opposed to examining words in isolation. Our work informs educational and therapeutic approaches to speech learning and disorders in individuals of various language backgrounds.

Current Projects

1. Acoustic predictors of intelligibility changes in children with and without cerebral palsy
We are currently recruiting children with CP (4-17 years old) with and without speech disorders, as well as age- and gender-matched typically-developing children, to assess the effectiveness of treatment strategies. They will use different techniques for improving their speech communication. We will provide feedback to parents. All participant information is kept completely confidential. You will be paid $50 for your time and effort!!! Please contact us at cpspeech@tc.columbia.edu or (212) 678-8361 to see if your child may qualify. The study is directed by Prof. Erika Levy, Ph.D., CCC-SLP and Kyung Hae Hwang, M.S., CCC-SLP. It takes place at Teachers College, Columbia University (120th Street) and takes up to 2 hours. Funding is provided through an ASHFoundation Clinical Research Grant. (TC IRB Protocol #14-245 )


2. Effects of speech cues and Speech Intelligibility Treatment (SIT) on intelligibility and communicative participation in children with dysarthria due to cerebral palsy who speak English, French, or Korean


3. Effects of speech cues and LSVT LOUD (Ramig et al., 2001) on speech intelligibility in English-speaking, Mandarin-speaking, and Spanish-speaking adults with hypokinetic dysarthria due to Parkinson’s disease.

4. Impact of Moebius Syndrome on intelligibility and quality of life, and effects of speech cues