Search Results - "Zañartu, Matias"

Laser-Calibrated System for Transnasal Fiberoptic Laryngeal High-Speed Videoendoscopy by Deliyski, Dimitar D., Shishkov, Milen, Mehta, Daryush D., Ghasemzadeh, Hamzeh, Bouma, Brett, Zañartu, Matias, de Alarcon, Alessandro, Hillman, Robert E.

“…The design specifications and experimental characteristics of a newly developed laser-projection transnasal flexible endoscope coupled with a high-speed…”
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Corrected contact dynamics for the Steinecke and Herzel asymmetric two-mass model of the vocal folds by SOMMER, David E, ERATH, Byron D, ZANARTU, Matias, PETERSON, Sean D

“…The simplified two-mass model of human vocal folds, proposed by Steinecke and Herzel [J. Acoust. Soc. Am. 97(3), 1874-1884 (1995)], has seen widespread use…”
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An Updated Theoretical Framework for Vocal Hyperfunction by Hillman, Robert E, Stepp, Cara E, Van Stan, Jarrad H, Zañartu, Matías, Mehta, Daryush D

“…Purpose The purpose of this viewpoint article is to facilitate research on vocal hyperfunction (VH). VH is implicated in the most commonly occurring types of…”
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Vocal fold dynamics in a synthetic self-oscillating model: Intraglottal aerodynamic pressure and energy by Motie-Shirazi, Mohsen, Zañartu, Matías, Peterson, Sean D., Erath, Byron D.

“…Self-sustained oscillations of the vocal folds (VFs) during phonation are the result of the energy exchange between the airflow and VF tissue. Understanding…”
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Vocal fold dynamics in a synthetic self-oscillating model: Contact pressure and dissipated-energy dose by Motie-Shirazi, Mohsen, Zañartu, Matías, Peterson, Sean D., Erath, Byron D.

“…The energy dissipated during vocal fold (VF) contact is a predictor of phonotrauma. Difficulty measuring contact pressure has forced prior energy dissipation…”
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Comprehensive, Population-Based Sensitivity Analysis of a Two-Mass Vocal Fold Model by Robertson, Daniel, Zañartu, Matías, Cook, Douglas

“…Previous vocal fold modeling studies have generally focused on generating detailed data regarding a narrow subset of possible model configurations. These…”
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LaDIVA: A neurocomputational model providing laryngeal motor control for speech acquisition and production by Weerathunge, Hasini R, Alzamendi, Gabriel A, Cler, Gabriel J, Guenther, Frank H, Stepp, Cara E, Zañartu, Matías

“…Many voice disorders are the result of intricate neural and/or biomechanical impairments that are poorly understood. The limited knowledge of their etiological…”
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Estimation of auditory steady-state responses based on the averaging of independent EEG epochs by Prado-Gutierrez, Pavel, Martínez-Montes, Eduardo, Weinstein, Alejandro, Zañartu, Matías

“…The amplitude of auditory steady-state responses (ASSRs) generated in the brainstem of rats exponentially decreases over the sequential averaging of EEG…”
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Triangular body-cover model of the vocal folds with coordinated activation of the five intrinsic laryngeal muscles by Alzamendi, Gabriel A., Peterson, Sean D., Erath, Byron D., Hillman, Robert E., Zañartu, Matías

“…Poor laryngeal muscle coordination that results in abnormal glottal posturing is believed to be a primary etiologic factor in common voice disorders such as…”
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Ambulatory assessment of phonotraumatic vocal hyperfunction using glottal airflow measures estimated from neck-surface acceleration by Cortés, Juan P, Espinoza, Víctor M, Ghassemi, Marzyeh, Mehta, Daryush D, Van Stan, Jarrad H, Hillman, Robert E, Guttag, John V, Zañartu, Matías

“…Phonotraumatic vocal hyperfunction (PVH) is associated with chronic misuse and/or abuse of voice that can result in lesions such as vocal fold nodules. The…”
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Modeling the influence of COVID-19 protective measures on the mechanics of phonation by Deng, Jonathan J, Serry, Mohamed A, Zañartu, Matías, Erath, Byron D, Peterson, Sean D

“…In an effort to mitigate the 2019 novel coronavirus disease pandemic, mask wearing and social distancing have become standard practices. While effective in…”
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Asymmetric triangular body-cover model of the vocal folds with bilateral intrinsic muscle activation by Parra, Jesús A., Calvache, Carlos, Alzamendi, Gabriel A., Ibarra, Emiro J., Soláque, Leonardo, Peterson, Sean D., Zañartu, Matías

“…Many voice disorders are linked to imbalanced muscle activity and known to exhibit asymmetric vocal fold vibration. However, the relation between imbalanced…”
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Glottal Aerodynamic Measures in Women with Phonotraumatic and Nonphonotraumatic Vocal Hyperfunction by Espinoza, Victor M, Zañartu, Matías, Van Stan, Jarrad H, Mehta, Daryush D, Hillman, Robert E

“…Purpose: The purpose of this study was to determine the validity of preliminary reports showing that glottal aerodynamic measures can identify…”
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Mobile Voice Health Monitoring Using a Wearable Accelerometer Sensor and a Smartphone Platform by Mehta, Daryush D., Zañartu, Matías, Feng, Shengran W., Cheyne II, Harold A., Hillman, Robert E.

“…Many common voice disorders are chronic or recurring conditions that are likely to result from faulty and/or abusive patterns of vocal behavior, referred to…”
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An acoustic source model for asymmetric intraglottal flow with application to reduced-order models of the vocal folds by Erath, Byron D, Peterson, Sean D, Weiland, Kelley S, Plesniak, Michael W, Zañartu, Matías

“…The complex three-way interaction between airflow, tissue, and sound, for asymmetric vocal fold vibration, is not well understood. Current modeling efforts are…”
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The difference between first and second harmonic amplitudes correlates between glottal airflow and neck-surface accelerometer signals during phonation by Mehta, Daryush D., Espinoza, Víctor M., Van Stan, Jarrad H., Zañartu, Matías, Hillman, Robert E.

“…Miniature high-bandwidth accelerometers on the anterior neck surface are used in laboratory and ambulatory settings to obtain vocal function measures. This…”
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Empirical Distribution of Glottal Edges (EDGE): A Statistical Assessment of Vocal Fold Kinematics Using High-Speed Videoendoscopy by Ibarra, Emiro J., Galindo, Gabriel E., Alzamendi, Gabriel A., Cortes, Juan P., Castro, Christian, Manriquez, Rodrigo, Testart, Alba, Zanartu, Matias

“…Although laryngeal high-speed videoendoscopy (HSV) is crucial for studying vocal fold vibrations, its translation to clinical practice has been hindered by the…”
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Effect of nodule size and stiffness on phonation threshold and collision pressures in a synthetic hemilaryngeal vocal fold model by Motie-Shirazi, Mohsen, Zañartu, Matías, Peterson, Sean D., Mehta, Daryush D., Hillman, Robert E., Erath, Byron D.

“…Synthetic vocal fold (VF) replicas were used to explore the role of nodule size and stiffness on kinematic, aerodynamic, and acoustic measures of voiced speech…”
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Observation and analysis of in vivo vocal fold tissue instabilities produced by nonlinear source-filter coupling: A case study by ZANARTU, Matías, MEHTA, Daryush D, HO, Julio C, WODICKA, George R, HILLMAN, Robert E

“…Different source-related factors can lead to vocal fold instabilities and bifurcations referred to as voice breaks. Nonlinear coupling in phonation suggests…”
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Chirp Analyzer for Estimating Amplitude and Latency of Steady-State Auditory Envelope Following Responses by Martinez-Montes, Eduardo, Garcia-Puente, Yalina, Zanartu, Matias, Prado-Gutierrez, Pavel

“…OBJECTIVE: The envelope following response (EFR) is a clinically relevant evoked potential, reflecting the synchronization of the auditory pathway to the…”
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