TY - JOUR
T1 - The impact of social–cognitive stress on speech variability, determinism, and stability in adults who do and do not stutter
AU - Jackson, Eric S.
AU - Tiede, Mark
AU - Beal, Deryk
AU - Whalen, D. H.
N1 - Funding Information:
This research was supported by National Institutes of Health Grant DC-002717 to Haskins Laboratories and National Science Foundation Grant 1513770 to the first author. The authors acknowledge Tricia Zebrowski and Michael A. Riley for helpful comments during the writing of this article. The authors also acknowledge the National Stuttering Association for helping with participant recruitment. The MATLAB procedures implemented for phase space reconstruction and recurrence quantification analysis were obtained at the American Psychological Association Advanced Training Institute on Nonlinear Methods for Psychological Science (http://www. apa.org/science/resources/ati/nonlinear.aspx).
Publisher Copyright:
© 2016 American Speech-Language-Hearing Association.
PY - 2016
Y1 - 2016
N2 - Purpose: This study examined the impact of social–cognitive presence contributed to greater within-sentence stress on sentence-level speech variability, determinism, and determinism and stability in the AWS. A subset of AWS stability in adults who stutter (AWS) and adults who do not who were more susceptible to experiencing anxiety stutter (AWNS). We demonstrated that complementing the exhibited reduced across-sentence variability in the spatiotemporal index (STI) with recurrence quantification audience condition compared with the nonaudience analysis (RQA) provides a novel approach to both assessing condition. and interpreting speech variability in stuttering. Conclusions: This study extends the assessment Method: Twenty AWS and 21 AWNS repeated sentences of speech variability in AWS and AWNS into the in audience and nonaudience conditions while their lip social–cognitive domain and demonstrates that the movements were tracked. Across-sentence variability characterization of speech within sentences using RQA was assessed via the STI; within-sentence determinism is complementary to the across-sentence STI measure. and stability were assessed via RQA. AWS seem to adopt a more restrictive, less flexible Results: Compared with the AWNS, the AWS produced speaking approach in response to social–cognitive stress, speech that was more variable across sentences and which is presumably a strategy for maintaining observably more deterministic and stable within sentences. Audience fluent speech.
AB - Purpose: This study examined the impact of social–cognitive presence contributed to greater within-sentence stress on sentence-level speech variability, determinism, and determinism and stability in the AWS. A subset of AWS stability in adults who stutter (AWS) and adults who do not who were more susceptible to experiencing anxiety stutter (AWNS). We demonstrated that complementing the exhibited reduced across-sentence variability in the spatiotemporal index (STI) with recurrence quantification audience condition compared with the nonaudience analysis (RQA) provides a novel approach to both assessing condition. and interpreting speech variability in stuttering. Conclusions: This study extends the assessment Method: Twenty AWS and 21 AWNS repeated sentences of speech variability in AWS and AWNS into the in audience and nonaudience conditions while their lip social–cognitive domain and demonstrates that the movements were tracked. Across-sentence variability characterization of speech within sentences using RQA was assessed via the STI; within-sentence determinism is complementary to the across-sentence STI measure. and stability were assessed via RQA. AWS seem to adopt a more restrictive, less flexible Results: Compared with the AWNS, the AWS produced speaking approach in response to social–cognitive stress, speech that was more variable across sentences and which is presumably a strategy for maintaining observably more deterministic and stable within sentences. Audience fluent speech.
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U2 - 10.1044/2016_JSLHR-S-16-0145
DO - 10.1044/2016_JSLHR-S-16-0145
M3 - Article
C2 - 27936276
AN - SCOPUS:85006963598
SN - 1092-4388
VL - 59
SP - 1295
EP - 1314
JO - Journal of Speech, Language, and Hearing Research
JF - Journal of Speech, Language, and Hearing Research
IS - 6
ER -