Investigation of vocal jitter and glottal flow spectrum as possible cues for depression and near-term suicidal risk

IEEE Transactions on Bio-medical Engineering
A OzdasD M Wilkes

Abstract

Among the many clinical decisions that psychiatrists must make, assessment of a patient's risk of committing suicide is definitely among the most important, complex, and demanding. When reviewing his clinical experience, one of the authors observed that successful predictions of suicidality were often based on the patient's voice independent of content. The voices of suicidal patients judged to be high-risk near-term exhibited unique qualities, which distinguished them from nonsuicidal patients. We investigated the discriminating power of two excitation-based speech parameters, vocal jitter and glottal flow spectrum, for distinguishing among high-risk near-term suicidal, major depressed, and nonsuicidal patients. Our sample consisted of ten high-risk near-term suicidal patients, ten major depressed patients, and ten nondepressed control subjects. As a result of two sample statistical analyses, mean vocal jitter was found to be a significant discriminator only between suicidal and nondepressed control groups (p < 0.05). The slope of the glottal flow spectrum, on the other hand, was a significant discriminator between all three groups (p < 0.05). A maximum likelihood classifier, developed by combining the a posteriori probabiliti...Continue Reading

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Citations

Dec 17, 2014·Journal of Medical Engineering·Mark SterlingMark Bocko
Apr 1, 2013·IEEE Transactions on Affective Computing·Ying YangJeffrey F Cohn
Feb 1, 2008·IEEE Transactions on Bio-medical Engineering·Elliot MooreLydia Weisser
Nov 30, 2012·IEEE Transactions on Bio-medical Engineering·Kuan Ee Brian OoiNicholas B Allen
Nov 16, 2010·IEEE Transactions on Bio-medical Engineering·Lu-Shih Alex LowNicholas B Allen
Jul 31, 2016·Journal of Voice : Official Journal of the Voice Foundation·Nik Wahidah HashimDaniel J France
Jan 14, 2012·Psychological Reports·William JarroldMatthias Mehl
Nov 20, 2016·Journal of Medical Systems·Paula Alexandra RegoPedro Miguel Moreira
Nov 28, 2018·Journal of Speech, Language, and Hearing Research : JSLHR·Stephanie GillespieBenjamin Haaland
Mar 19, 2019·European Journal of Cancer Care·Rajib RanaJeff Dunn
Dec 8, 2019·International Journal of Mental Health Nursing·Marianne SmithHenry Jeremy Bockholt
Mar 7, 2020·Logopedics, Phoniatrics, Vocology·Carla Figueroa SaavedraRoberto Lagos Hernández
Oct 23, 2018·Computational and Mathematical Methods in Medicine·Haihua JiangHuanyu Kang
Dec 5, 2020·Archives of Suicide Research : Official Journal of the International Academy for Suicide Research·D Nicolas Oakey-FrostCraig J Bryan
Jul 25, 2021·Journal of Clinical Medicine·Daun ShinYong Min Ahn
Aug 7, 2021·Journal of Voice : Official Journal of the Voice Foundation·Wegina Jordana SilvaAnna Alice Almeida

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