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Communication Sciences and Disorders

Theses and Dissertations

Electropalatography

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Full-Text Articles in Medicine and Health Sciences

The Distinction Between Lingua-Palatal Contact Patterns Of English Light And Dark [Ɫ]: A Precursor To Using Electropalatography In Second Language Instruction, Kallie Lynne Chaves Apr 2019

The Distinction Between Lingua-Palatal Contact Patterns Of English Light And Dark [Ɫ]: A Precursor To Using Electropalatography In Second Language Instruction, Kallie Lynne Chaves

Theses and Dissertations

Electropalatography (EPG) is a system designed to provide visual feedback of lingua-palatal contact via electrodes and computer software in real-time. Traditionally, EPG technology has been effective in the treatment of both developmental and acquired speech disorders. Little research, however, has been done to show the effectiveness of EPG feedback in second language instruction and foreign accent reduction. The present thesis is part of a larger project examining the utility of EPG technology as a potential tool for teaching English speakers learning German as a second language (L2). A common error that English speakers make in German pronunciation is the incorrect …


Quantifying Lingua-Palatal Contact Patterns Of Fricative Productions By Non-Native Students Enrolled In A University German Language Course: An Electropalatography Study, Kate Erin Lester Jun 2017

Quantifying Lingua-Palatal Contact Patterns Of Fricative Productions By Non-Native Students Enrolled In A University German Language Course: An Electropalatography Study, Kate Erin Lester

Theses and Dissertations

Electropalatography (EPG) is a computer-based tracking system designed to provide real-time visual biofeedback of articulatory contacts occurring during speech production. Historically, EPG technology has proven functional within the treatment and assessment of speech disorders however, application of EPG technology to assist in second language learning has remained limited. The present thesis is part of a larger study examining the effectiveness of using EPG as an advanced instructional tool for assisting second language (L2) learners of German. Fricative productions ([ç], [x], /s/, and /∫/) within real words were gathered from 12 native English speakers enrolled in a second semester university level …


Perceptual Analysis Of Children's Adaptation To An Electropalatography Sensor, Kasey Marie Duffield Jun 2017

Perceptual Analysis Of Children's Adaptation To An Electropalatography Sensor, Kasey Marie Duffield

Theses and Dissertations

The purpose of this study is to observe childrens adaptation to an electropalatographic (EPG) sensor. Sound recordings of six children between the ages of 7;0 and 9;11 sampled at 30-minute intervals over a two-hour period of wearing an EPG sensor were perceptually evaluated to quantify the children's adaptation over time. Twenty native speakers of American English evaluated the pronunciation of a series of words with embedded stops and fricatives produced with and without an EPG sensor in place. When collapsed over speaker and stimulus type, listener ratings decreased significantly after inserting the EPG sensor. Ratings then increased significantly after the …


Perceptual Analysis Of Children's Adaptation To An Electropalatography Sensor, Kasey Marie Duffield Jun 2017

Perceptual Analysis Of Children's Adaptation To An Electropalatography Sensor, Kasey Marie Duffield

Theses and Dissertations

The purpose of this study is to observe childrens adaptation to an electropalatographic (EPG) sensor. Sound recordings of six children between the ages of 7;0 and 9;11 sampled at 30-minute intervals over a two-hour period of wearing an EPG sensor were perceptually evaluated to quantify the children's adaptation over time. Twenty native speakers of American English evaluated the pronunciation of a series of words with embedded stops and fricatives produced with and without an EPG sensor in place. When collapsed over speaker and stimulus type, listener ratings decreased significantly after inserting the EPG sensor. Ratings then increased significantly after the …


Establishing Normative Data For Contact Patterns Of Fricative Production By Native German Speakers: An Electropalatography Study, Lisa Diane Isaacson Jun 2015

Establishing Normative Data For Contact Patterns Of Fricative Production By Native German Speakers: An Electropalatography Study, Lisa Diane Isaacson

Theses and Dissertations

Electropalatography (EPG) provides real-time visual biofeedback for linguapalatal contact during speech and swallowing. Historically, EPG has proved to be an effective tool for assessment and treatment of a variety of speech disorders across a wide age range. The present thesis is part of a larger study examining the effectiveness of using EPG in assisting second language (L2) learners to acquire the German fricatives , [x], and //. Real and nonsense word productions were collected from six native German speakers. Electrode activation levels were generally highest for and lowest for [x]. Even when considering the impact of vowel context, [x] consistently …


Children's Adaptation To Electropalatography: Evidence From Acoustic Analysis Of /T/ And /K/, Kara Brianne Knapp Jun 2014

Children's Adaptation To Electropalatography: Evidence From Acoustic Analysis Of /T/ And /K/, Kara Brianne Knapp

Theses and Dissertations

Electropalatography (EPG) is a computer-based device that uses a fitted pseudopalate (similar to an orthodontic retainer) with embedded electrodes to track tongue-to-palate contact during speech for the purposes of providing treatment for a variety of communication disorders. This study evaluated six elementary school-aged children's ability to adapt their speech to the presence of the pseudopalate in their mouth. The participants' adaptation for the consonants /t/ and /k/ was examined over eight time intervals throughout a two and half hour time period. Adaptation was evaluated by measuring the duration, spectral mean, spectral variance, and relative intensity of the target sounds. The …


The Effectiveness Of Using Electropalatography To Remediate A Developmental Speech Sound Disorder In A School-Aged Child With Hearing Impairment, Kristina Lynne Pickett Jun 2013

The Effectiveness Of Using Electropalatography To Remediate A Developmental Speech Sound Disorder In A School-Aged Child With Hearing Impairment, Kristina Lynne Pickett

Theses and Dissertations

Advances in instrumentation and computer technology such as electropalatography (EPG) have offered additional types of feedback to more traditional therapy for individuals with speech disorders, specifically those with hearing impairment. The purpose of this study was to document whether therapeutic integration of EPG visual feedback in combination with traditional articulation therapy for a school-aged child with an articulation disorder secondary to hearing impairment was more effective than traditional therapy alone. One participant received five sessions of each therapy approach. Six adult listeners rated the quality of the participant's production of /r/ in words recorded during the therapy sessions. The EPG …


The Correlation Between Spectral Moment Measures And Electropalatometric Contact Patterns For /T/ And /K/, Janelle Barrett Sep 2012

The Correlation Between Spectral Moment Measures And Electropalatometric Contact Patterns For /T/ And /K/, Janelle Barrett

Theses and Dissertations

Spectral moment analysis has helped further our understanding of the spectral properties of obstruent speech production; however, the physiologic correlates of these spectral measures are not well understood. The aim of the present study was to examine the possible correlations between the linguapalatal contact patterns used to produce the stops /t/ and /k/ and the resulting spectral characteristics. Using spectral moment analysis and electropalatography, the real-word productions of eight speakers of American English were investigated. The spectral measures for the stop consonant tokens in the present study were found to be similar to data reported in previous research with adult …


The Correlation Between Spectral Moment Measures And Electropalatographic Contact Patterns For /S/ And /Ʃ/, Benjamin James Marshall Jun 2012

The Correlation Between Spectral Moment Measures And Electropalatographic Contact Patterns For /S/ And /Ʃ/, Benjamin James Marshall

Theses and Dissertations

Spectral Moment Analysis has helped further our understanding of the spectral properties of obstruent speech production; however, the physiologic correlates of these spectral measures are not well understood. The aim of the present study was to examine the possible correlations between the linguapalatal contact patterns used to produce the fricatives /s/ and /ʃ/ and the resulting spectral characteristics. Using spectral moment analysis and electropalatography (EPG), the real-word productions of eight speakers of American English were investigated. The spectral measures for the fricative tokens in the present study were found to be similar to data reported in previous research with adult …


The Effect Of A Pseudopalate On Voiceless Obstruent Production: A Spectral Evaluation Of Adaptation, Karie Lindsay Dean Jul 2008

The Effect Of A Pseudopalate On Voiceless Obstruent Production: A Spectral Evaluation Of Adaptation, Karie Lindsay Dean

Theses and Dissertations

Many studies in speech communication have provided valuable findings concerning the kinematic nature of speech articulation. This type of research often involves introducing an oral device to the vocal tract such as lingual pellets, magnets, and different forms of pseudopalates to track the movement and placement of the articulators. This study examined the effect of an electropalatography (EPG) pseudopalate on the production of five voiceless obstruents (/p, t, k, s/ and /sh/). Acoustic recordings from 20 adult speakers with typical speech production were made during three different speaking conditions: prior to pseudopalate placement, immediately after placement, and following 20 minutes …