Characterizing covert articulation in apraxic speech using real-time MRI

Christina Hagedorn; Michael Proctor; Louis Goldstein; Maria Luisa Gorno Tempini; Shrikanth S. Narayanan

Characterizing covert articulation in apraxic speech using real-time MRI

Christina Hagedorn, Michael Proctor, Louis Goldstein, Maria Luisa Gorno Tempini, Shrikanth S. Narayanan

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution

Abstract

We explore the use of real-time magnetic resonance imaging (rtMRI) as a tool to investigate apraxic speech, in particular, by examining articulatory behavior. Our pilot data reveal that covert (silent) gestural intrusion errors (employing an intrinsically simple 1:1 mode of coupling) are made more frequently by an apraxic subject than by fluent speakers. Covert intrusion errors are also found to be pervasive in non-repetitious apraxic speech. We demonstrate that acoustically silent periods observed before the initiation of apraxic speech oftentimes contain completely covert gestures that occur frequently with multigestural segments. Covert gestures corresponding to entire words are also observed. These data demonstrate that rtMRI can provide important new insights into apraxic speech that are not available using traditional methods of transcription based on acoustic data alone.

Original language	English
Title of host publication	13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
Place of Publication	Red Hook, NY
Publisher	International Speech Communication Association
Pages	1050-1053
Number of pages	4
Volume	2
ISBN (Print)	9781622767595
Publication status	Published - 2012
Externally published	Yes
Event	13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012 - Portland, OR, United States Duration: 9 Sep 2012 → 13 Sep 2012

Other

Other	13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
Country	United States
City	Portland, OR
Period	9/09/12 → 13/09/12

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Hagedorn, Christina ; Proctor, Michael ; Goldstein, Louis ; Tempini, Maria Luisa Gorno ; Narayanan, Shrikanth S. / Characterizing covert articulation in apraxic speech using real-time MRI. 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012. Vol. 2 Red Hook, NY : International Speech Communication Association, 2012. pp. 1050-1053

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title = "Characterizing covert articulation in apraxic speech using real-time MRI",

abstract = "We explore the use of real-time magnetic resonance imaging (rtMRI) as a tool to investigate apraxic speech, in particular, by examining articulatory behavior. Our pilot data reveal that covert (silent) gestural intrusion errors (employing an intrinsically simple 1:1 mode of coupling) are made more frequently by an apraxic subject than by fluent speakers. Covert intrusion errors are also found to be pervasive in non-repetitious apraxic speech. We demonstrate that acoustically silent periods observed before the initiation of apraxic speech oftentimes contain completely covert gestures that occur frequently with multigestural segments. Covert gestures corresponding to entire words are also observed. These data demonstrate that rtMRI can provide important new insights into apraxic speech that are not available using traditional methods of transcription based on acoustic data alone.",

author = "Christina Hagedorn and Michael Proctor and Louis Goldstein and Tempini, {Maria Luisa Gorno} and Narayanan, {Shrikanth S.}",

year = "2012",

language = "English",

isbn = "9781622767595",

volume = "2",

pages = "1050--1053",

booktitle = "13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012",

publisher = "International Speech Communication Association",

}

Hagedorn, C, Proctor, M, Goldstein, L, Tempini, MLG & Narayanan, SS 2012, Characterizing covert articulation in apraxic speech using real-time MRI. in 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012. vol. 2, International Speech Communication Association, Red Hook, NY, pp. 1050-1053, 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012, Portland, OR, United States, 9/09/12.

Characterizing covert articulation in apraxic speech using real-time MRI. / Hagedorn, Christina; Proctor, Michael; Goldstein, Louis; Tempini, Maria Luisa Gorno; Narayanan, Shrikanth S.

13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012. Vol. 2 Red Hook, NY : International Speech Communication Association, 2012. p. 1050-1053.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution

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