کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1101926 953581 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Perturbation and Nonlinear Dynamic Analysis of Adult Male Smokers
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی بیماری های گوش و جراحی پلاستیک صورت
پیش نمایش صفحه اول مقاله
Perturbation and Nonlinear Dynamic Analysis of Adult Male Smokers
چکیده انگلیسی

SummaryObjectiveSmoking results in a voice change, and the perception by smokers of an abnormal voice may encourage quitting behavior. Moreover, a disordered voice is often the first sign of vocal pathology. Efforts to evaluate voice have focused on classical acoustic analysis; however, nonlinear dynamic analysis has been shown to be a reliable objective method for the evaluation of voice. We compare the discriminatory ability of these two methods when applied to normal and smokers' voices.Study DesignProspective study.MethodsThe study included 73 subjects, 36 nonsmokers and 37 smokers. A segment of sustained vowel production was obtained from each subject. Acoustic dimension and correlation dimension (D2) analyses were applied to the data. Results were compared with a Mann-Whitney rank sum test, logistic regression, and receiver operating characteristics (ROC) analysis.ResultsD2 values for smokers were significantly higher than D2 values for nonsmokers (P < 0.001). Jitter and shimmer analysis showed higher values for these parameters among smokers. Logistic regression indicated a higher predictive power with D2, and ROC analysis found no significant difference between the analysis methods.DiscussionThis study indicated that D2 is highly sensitive to changes associated with smoking and has the potential to be implemented clinically as an indicator of abnormal voice. Further research could focus on using nonlinear dynamic analysis to create a normative database, producing standards for monitoring voice changes caused by cigarette smoking.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Voice - Volume 25, Issue 3, May 2011, Pages 342–347
نویسندگان
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