Motor preparation preceding stuttered and nonstuttered speech [electronic resource]
Purpose. This dissertation examined the Bereitschaftspotential (BP), a movement-related cortical potential and robust electrophysiological correlate of motor behavior, just prior to stuttered and fluent speech production. The objective was to investigate whether stuttering is linked to atypical spee...
Saved in:
| Online Access: |
Online Access |
|---|---|
| Main Author: | |
| Other Authors: | |
| Format: | Thesis Electronic eBook |
| Language: | English |
| Published: |
2010.
|
| Subjects: |
MARC
| LEADER | 00000ntm a2200000 4500 | ||
|---|---|---|---|
| 001 | b6587992 | ||
| 003 | CoU | ||
| 005 | 20110126100226.5 | ||
| 006 | m d | ||
| 007 | cr un | ||
| 008 | 110126s2010 xx |||||s|m|||||| ||eng d | ||
| 020 | |a 9781109780451 | ||
| 035 | |a aai3403968 | ||
| 035 | |a (UMI)AAI3403968 | ||
| 040 | |a UMI |c UMI | ||
| 100 | 1 | |a Pollard, Ryan Daniel. | |
| 245 | 1 | 0 | |a Motor preparation preceding stuttered and nonstuttered speech |h [electronic resource] |
| 260 | |c 2010. | ||
| 300 | |a 110 pages. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Source: Dissertation Abstracts International, Volume: 71-06, Section: B, page: 3642. | ||
| 500 | |a Adviser: Phillip Gilley. | ||
| 502 | |b Ph.D. |c University of Colorado at Boulder |d 2010. | ||
| 520 | 3 | |a Purpose. This dissertation examined the Bereitschaftspotential (BP), a movement-related cortical potential and robust electrophysiological correlate of motor behavior, just prior to stuttered and fluent speech production. The objective was to investigate whether stuttering is linked to atypical speech motor preparation. | |
| 520 | 3 | |a Method. BP was recorded with a 64-channel electroencephalograph (EEG) in persons who stutter (PWS) and nonstuttering controls while they performed an oral reading task. Fluent and disfluent trials from each cohort were grouped together and independent component analysis (ICA) was used to remove unwanted components in the EEG related to speech and other artifact. Results: Visual inspection of scalp topography and statistical measures of BP morphology revealed that motor preparation preceding stuttered and fluent speech differed between PWS and controls and within PWS based on fluency status. | |
| 520 | 3 | |a Discussion. This investigation demonstrated the feasibility of utilizing EEG to directly examine the neurophysiological correlates of stuttered speech. Differences on measures of BP latency, slope, amplitude, and scalp location suggest that PWS may differentially recruit motor systems when preparing to speak. Results indicate that stuttered speech is prepared and/or executed less efficiently than fluent speech within PWS. More research is needed to elucidate whether PWS engage involuntary motor systems before moments of stuttering, and how the atypicality of BP preceding disfluencies might be viewed in the light of recent etiological theories postulating distinct premotor systems for stuttered and fluent speech. | |
| 520 | 3 | |a Keywords. stuttering, Bereitschaftspotential, electroencephalography, event-related potentials, neuroimaging, speech production, independent component analysis. | |
| 590 | |a School code: 0051. | ||
| 655 | 7 | |a Theses |x CU Boulder |x Speech, Language and Hearing Sciences. |2 local. | |
| 700 | 1 | |a Gilley, Phillip M., |e advisor. | |
| 773 | 0 | |t Dissertation Abstracts International |g 71-06B. | |
| 790 | 1 | 0 | |a Ramig, Peter |e committee member. |
| 790 | 1 | 0 | |a Finan, Donald |e committee member. |
| 790 | 1 | 0 | |a Ramsberger, Gail |e committee member. |
| 790 | 1 | 0 | |a Kim, Albert |e committee member. |
| 856 | 4 | 0 | |z Online Access |u https://colorado.idm.oclc.org/login?url=http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3403968 |
| 907 | |a .b65879922 |b 03-06-23 |c 01-27-11 | ||
| 998 | |a web |b 01-27-11 |c b |d t |e - |f eng |g xx |h 0 |i 1 | ||
| 907 | |a .b65879922 |b 01-26-18 |c 01-27-11 | ||
| 944 | |a MARS - RDA ENRICHED | ||
| 907 | |a .b65879922 |b 02-12-14 |c 01-27-11 | ||
| 956 | |a ETD | ||
| 907 | |a .b65879922 |b 02-03-11 |c 01-27-11 | ||
| 907 | |a .b65879922 |b 01-28-11 |c 01-27-11 | ||
| 999 | f | f | |i d4cf7dca-03ee-5742-a0b1-0710b78f26a1 |s cba9f732-f260-51c1-8a50-b9a746467c00 |
| 952 | f | f | |p Can circulate |a University of Colorado Boulder |b Online |c Online |d Online |i web |n 1 |