keyword
MENU ▼
Read by QxMD icon Read
search

Vocal tract

keyword
https://www.readbyqxmd.com/read/28738366/neuroanatomical-correlates-of-hypophonia-in-subcortical-vascular-cognitive-impairment
#1
Ji Hye Yoon, Yisuh Ahn, Sook Hui Kim, Juhee Chin, Seongbeom Park, Duk L Na
BACKGROUND/AIMS: Early detection and intervention may alter the disease course of subcortical vascular cognitive impairment (SVCI). Patients with SVCI have white matter ischemia that disrupts connections between the cortex and subcortical gray matter and therefore manifest various symptoms such as motor disturbances and behavioral/cognitive dysfunction. Reduced vocal loudness, or hypophonia, is one of the common motor symptoms of SVCI, but few studies have systematically investigated it in this patient population...
July 24, 2017: European Neurology
https://www.readbyqxmd.com/read/28724740/grasshopper-mice-employ-distinct-vocal-production-mechanisms-in-different-social-contexts
#2
Bret Pasch, Isao T Tokuda, Tobias Riede
Functional changes in vocal organ morphology and motor control facilitate the evolution of acoustic signal diversity. Although many rodents produce vocalizations in a variety of social contexts, few studies have explored the underlying production mechanisms. Here, we describe mechanisms of audible and ultrasonic vocalizations (USVs) produced by grasshopper mice (genus Onychomys). Grasshopper mice are predatory rodents of the desert that produce both loud, long-distance advertisement calls and USVs in close-distance mating contexts...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28712601/the-effects-of-uvulopalatal-flap-operation-on-speech-nasalance-and-the-acoustic-parameters-of-the-final-nasal-consonants
#3
Soo Kyoung Park, Yong Soo Lee, Young Ae Kang, Jun Xu, Ki Sang Rha, Yong Min Kim
OBJECTIVE: The acoustic characteristics of voice are determined by the source of the sound and shape of the vocal tract. Various anatomical changes after uvulopalatal flap (UPF) operation can change nasalance and/or other voice characteristics. Our aim was to explore the possible effects of UPF creation on speech nasalance and the resonatory features of the final nasal consonants, and thus voice characteristics. METHODS: A total of 30 patients (26 males, 4 females) with obstructive sleep apnea who underwent UPF operation were recruited...
July 13, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28709764/using-receiver-operating-characteristic-curve-to-define-the-cutoff-points-of-voice-handicap-index-applied-to-young-adult-male-smokers
#4
Dionysios Tafiadis, Spyridon K Chronopoulos, Evangelia I Kosma, Louiza Voniati, Vasilis Raptis, Vasiliki Siafaka, Nausica Ziavra
Voice performance is an inextricable key factor of everyday life. Obviously, the deterioration of voice quality can cause various problems to human communication and can therefore reduce the performance of social skills (relevant to voice). The deterioration could be originated from changes inside the system of the vocal tract and larynx. Various prognostic methods exist, and among them is the Voice Handicap Index (VHI). This tool includes self-reported questionnaires, used for determining the cutoff points of total score and of its three domains relevant to young male Greek smokers...
July 11, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28695214/response-to-lieberman-on-monkey-vocal-tracts-are-speech-ready
#5
W Tecumseh Fitch, Bart de Boer, Neil Mathur, Asif A Ghazanfar
Macaques do have a speech-ready vocal tract, but lack a speech-ready brain to control it.
July 2017: Science Advances
https://www.readbyqxmd.com/read/28695209/comment-on-monkey-vocal-tracts-are-speech-ready
#6
Philip Lieberman
Monkey vocal tracts are capable of producing monkey speech, not the full range of articulate human speech. The evolution of human speech entailed both anatomy and brains. Fitch, de Boer, Mathur, and Ghazanfar in Science Advances claim that "monkey vocal tracts are speech-ready," and conclude that "…the evolution of human speech capabilities required neural change rather than modifications of vocal anatomy." Neither premise is consistent either with the data presented and the conclusions reached by de Boer and Fitch themselves in their own published papers on the role of anatomy in the evolution of human speech or with the body of independent studies published since the 1950s...
July 2017: Science Advances
https://www.readbyqxmd.com/read/28679275/an-investigation-of-the-systematic-use-of-spectral-information-in-the-determination-of-apparent-talker-height
#7
Santiago Barreda
The perception of apparent-talker height is mostly determined by the fundamental frequency (f0) and spectral characteristics of a voice. Although it is traditionally thought that spectral cues affect apparent-talker height by influencing apparent vocal-tract length, a recent experiment [Barreda (2016). J. Phon. 55, 1-18] suggests that apparent-talker height can vary significantly within-talker on the basis of phonemically-determined spectral variability. In this experiment, listeners were asked to estimate the height of 10 female talkers based on manipulated natural productions of bVd words containing one of /i æ ɑ u ɝ/...
June 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28655064/range-and-precision-of-formant-movement-in-pediatric-dysarthria
#8
Kristen M Allison, Lucas Annear, Marisa Policcicio, Katherine C Hustad
Purpose: This study aimed to improve understanding of speech characteristics associated with dysarthria in children with cerebral palsy by analyzing segmental and global formant measures in single-word and sentence contexts. Method: Ten 5-year-old children with cerebral palsy and dysarthria and 10 age-matched, typically developing children participated in this study. Vowel space area and second formant interquartile range were measured from children's elicited productions of single words and sentences...
June 28, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28648485/effects-of-straw-phonation-through-tubes-of-varied-lengths-on-sustained-vowels-in-normal-voiced-participants
#9
Randal D Mills, Shawna Rivedal, Colten DeMorett, Grace Maples, Jack J Jiang
OBJECTIVE: To examine the immediate effects of straw phonation exercises in normal subjects while altering the effective length of the vocal tract. STUDY DESIGN: A nonrandomized comparison of semi-occluded vocal tract length during straw phonation exercises was carried out. METHODS: Oral pressure, mean airflow, aerodynamic resistance, and contact quotient were measured in 20 healthy subjects immediately before and after straw phonation exercises...
June 22, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28647430/determining-the-relevant-criteria-for-three-dimensional-vocal-tract-characterization
#10
Rebecca R Vos, Damian T Murphy, David M Howard, Helena Daffern
OBJECTIVE: Soprano singers face a number of specific challenges when singing vowels at high frequencies, due to the wide spacing of harmonics in the voice source. The varied and complex techniques used to overcome these are still not fully understood. Magnetic resonance imaging (MRI) has become increasingly popular in recent years for singing voice analysis. This study proposes a new protocol using three-dimensional MRI to investigate the articulatory parameters relevant to resonance tuning, a technique whereby singers alter their vocal tract to shift its resonances nearer to a voice source harmonic, increasing the amplitude of the sound produced...
June 21, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28626493/a-kinematic-study-of-prosodic-structure-in-articulatory-and-manual-gestures-results-from-a-novel-method-of-data-collection
#11
Jelena Krivokapić, Mark K Tiede, Martha E Tyrone
The primary goal of this work is to examine prosodic structure as expressed concurrently through articulatory and manual gestures. Specifically, we investigated the effects of phrase-level prominence (Experiment 1) and of prosodic boundaries (Experiments 2 and 3) on the kinematic properties of oral constriction and manual gestures. The hypothesis guiding this work is that prosodic structure will be similarly expressed in both modalities. To test this, we have developed a novel method of data collection that simultaneously records speech audio, vocal tract gestures (using electromagnetic articulometry) and manual gestures (using motion capture)...
2017: Laboratory Phonology
https://www.readbyqxmd.com/read/28620283/octopus-cells-in-the-posteroventral-cochlear-nucleus-provide-the-main-excitatory-input-to-the-superior-paraolivary-nucleus
#12
Richard A Felix Ii, Boris Gourévitch, Marcelo Gómez-Álvarez, Sara C M Leijon, Enrique Saldaña, Anna K Magnusson
Auditory streaming enables perception and interpretation of complex acoustic environments that contain competing sound sources. At early stages of central processing, sounds are segregated into separate streams representing attributes that later merge into acoustic objects. Streaming of temporal cues is critical for perceiving vocal communication, such as human speech, but our understanding of circuits that underlie this process is lacking, particularly at subcortical levels. The superior paraolivary nucleus (SPON), a prominent group of inhibitory neurons in the mammalian brainstem, has been implicated in processing temporal information needed for the segmentation of ongoing complex sounds into discrete events...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/28616866/vocal-palsy-increases-the-risk-of-lower-respiratory-tract-infection-in-low-risk-low-morbidity-patients-undergoing-thyroidectomy-for-benign-disease-a-big-data-analysis
#13
S A R Nouraei, J Allen, H Kaddour, S E Middleton, P Aylin, A Darzi, N S Tolley
OBJECTIVES: Thyroidectomy is the commonest and most rapidly-growing operation which places normally-functioning laryngeal nerves at risk of injury. Laryngeal palsy is a major risk-factor for dysphonia, dysphagia, and less commonly, airway obstruction. We investigated the association between post-thyroidectomy vocal palsy and long-term risks of pneumonia and laryngeal failure. DESIGN: An N=near-all analysis of the English administrative dataset using a previously-validated informatics algorithm to identify young and otherwise low-risk patients undergoing thyroidectomy for benign disease...
June 14, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28599994/vocal-tract-discomfort-and-voice-related-quality-of-life-in-wind-instrumentalists
#14
Juliane Cappellaro, Bárbara Costa Beber
OBJECTIVE: This study aimed to investigate vocal tract discomfort and quality of life in the voice of wind instrumentalists. METHOD: It is a cross-sectional study. The sample was composed of 37 musicians of the orchestra of Caxias do Sul city, RS, Brazil. The participants answered a nonstandard questionnaire about demographic and professional information, the Voice-Related Quality of Life (V-RQOL), the Vocal Tract Discomfort (VTD) scale, and additional items about fatigue after playing the instrument and pain in the cervical muscles...
June 6, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28583268/voice-disorders-in-residual-paracoccidioidomycosis-in-upper-airways-and-digestive-tract
#15
Ananda Dutra da Costa, Amanda Pereira Vargas, Marcia Mendonça Lucena, Ana Cristina Nunes Ruas, Fernanda da Silva Santos Braga, Mateus Pereira Bom-Braga, Frederico Pereira Bom-Braga, Antonio Carlos Francesconi do Valle, Ricardo Pereira Igreja, Cláudia Maria Valete-Rosalino
BACKGROUND: Paracoccidioidomycosis (PCM) is a systemic mycosis of acute and chronic evolution, caused by species belonging to the genus Paracoccidioides. It is considered the most prevalent systemic endemic mycosis in Latin America, with cases in the tropical and subtropical regions. Residual PCM refers to the fibrotic scar sequelae resulting from the disease treatment which, when associated with collagen accumulation, leads to functional and anatomic alterations in the organs. AIMS: The aim of this study was to evaluate the vocal function of patients with residual PCM in upper airways and digestive tract...
June 2, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28578533/unusually-high-pitched-neonate-distress-calls-of-the-open-habitat-mongolian-gazelle-procapra-gutturosa-and-their-anatomical-and-hormonal-predictors
#16
Ilya A Volodin, Elena V Volodina, Roland Frey, Vadim E Kirilyuk, Sergey V Naidenko
In neonate ruminants, the acoustic structure of vocalizations may depend on sex, vocal anatomy, hormonal profiles and body mass and on environmental factors. In neonate wild-living Mongolian gazelles Procapra gutturosa, hand-captured during biomedical monitoring in the Daurian steppes at the Russian-Mongolian border, we spectrographically analysed distress calls and measured body mass of 22 individuals (6 males, 16 females). For 20 (5 male, 15 female) of these individuals, serum testosterone levels were also analysed...
June 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28554824/the-perception-of-formant-tuning-in-soprano-voices
#17
Rebecca R Vos, Damian T Murphy, David M Howard, Helena Daffern
INTRODUCTION: At the upper end of the soprano range, singers adjust their vocal tract to bring one or more of its resonances (Rn) toward a source harmonic, increasing the amplitude of the sound; this process is known as resonance tuning. This study investigated the perception of (R1) and (R2) tuning, key strategies observed in classically trained soprano voices, which were expected to be preferred by listeners. Furthermore, different vowels were compared, whereas previous investigations have usually focused on a single vowel...
May 26, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28541243/czy-smog-ma-wp%C3%A5-yw-na-cz%C3%A4-sto%C3%A5-%C3%A4-wyst%C3%A4-powania-zaostrze%C3%A5-przewlek%C3%A5-ego-zapalenia-krtani-analiza-na-przyk%C3%A5-adzie-mieszka%C3%A5-c%C3%A3-w-wojew%C3%A3-dztwa-ma%C3%A5-opolskiego
#18
Remigiusz Ziarno, Anna Suska, Wojciech Kulinowski, Aleksandra Grudzień-Ziarno, Magdalena Kostrzon, Magdalena Paciorek, Jacek Składzień
INTRODUCTION: Due to dynamic industrialisation smog became a frequent phenomenon in most developing cities. According to the last WHO report from Global Urban Ambient Air Pollution Database, Krakow has been classified in the 11th place among the most polluted cities in Europe. It seems to be an urgent issue because of the influence of air pollution on the condition of upper respiratory tract. Materials & Methods: In December 2015 there were 141 patients aged 17-91 years with upper respiratory tract diseases admitted to the phoniatric outpatient clinic in the University Hospital in Cracow...
June 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/28538821/sensory-symptoms-in-patients-undergoing-thyroidectomy
#19
COMPARATIVE STUDY
Lillian Fernandes de Araújo, Leonardo Wanderley Lopes, Priscila Oliveira Costa Silva, Victor Jose Ferreira Perrusi, Vívian Lisboa de Lucena Farias, Elma Heitmann Mares Azevedo
Purpose: To verify the occurrence of sensory symptoms in thyroidectomy patients pre- and post-operatively. Methods: This is a prospective, quantitative, descriptive study conducted with a sample of twelve patients undergoing thyroidectomy. The participants underwent visual laryngeal examination and responded to the Upper Aerodigestive Symptoms (UADS) and Vocal Tract Discomfort Scale (VTDS) questionnaires before and after the surgery. Results: There was higher occurrence of vocal fatigue, hoarseness, pharyngeal bolus, dry throat, and throat clearing preoperatively, whereas higher occurrence of hoarseness, vocal fatigue, cough, and pharyngeal bolus was observed postoperatively for the UADS...
May 15, 2017: CoDAS
https://www.readbyqxmd.com/read/28528785/resonance-tube-phonation-in-water-the-effect-of-tube-diameter-and-water-depth-on-back-pressure-and-bubble-characteristics-at-different-airflows
#20
Greta Wistbacka, Pedro Amarante Andrade, Susanna Simberg, Britta Hammarberg, Maria Södersten, Jan G Švec, Svante Granqvist
OBJECTIVES: Resonance tube phonation with tube end in water is a voice therapy method in which the patient phonates through a glass tube, keeping the free end of the tube submerged in water, creating bubbles. The purpose of this experimental study was to determine flow-pressure relationship, flow thresholds between bubble types, and bubble frequency as a function of flow and back volume. METHODS: A flow-driven vocal tract simulator was used for recording the back pressure produced by resonance tubes with inner diameters of 8 and 9 mm submerged at water depths of 0-7 cm...
May 18, 2017: Journal of Voice: Official Journal of the Voice Foundation
keyword
keyword
104033
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"