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https://www.readbyqxmd.com/read/27914422/modeling-of-oropharyngeal-articulatory-adaptation-to-compensate-for-the-acoustic-effects-of-nasalization
#1
Panying Rong, David P Kuehn, Ryan K Shosted
Hypernasality is one of the most detrimental speech disturbances that lead to declines of speech intelligibility. Velopharyngeal inadequacy, which is associated with anatomic defects such as cleft palate or neuromuscular disorders that affect velopharygneal function, is the primary cause of hypernasality. A simulation study by Rong and Kuehn [J. Speech Lang. Hear. Res. 55(5), 1438-1448 (2012)] demonstrated that properly adjusted oropharyngeal articulation can reduce nasality for vowels synthesized with an articulatory model [Mermelstein, J...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27911747/new-developments-in-understanding-the-complexity-of-human-speech-production
#2
Kristina Simonyan, Hermann Ackermann, Edward F Chang, Jeremy D Greenlee
Speech is one of the most unique features of human communication. Our ability to articulate our thoughts by means of speech production depends critically on the integrity of the motor cortex. Long thought to be a low-order brain region, exciting work in the past years is overturning this notion. Here, we highlight some of major experimental advances in speech motor control research and discuss the emerging findings about the complexity of speech motocortical organization and its large-scale networks. This review summarizes the talks presented at a symposium at the Annual Meeting of the Society of Neuroscience; it does not represent a comprehensive review of contemporary literature in the broader field of speech motor control...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27894006/distinct-patterns-of-imprecise-consonant-articulation-among-parkinson-s-disease-progressive-supranuclear-palsy-and-multiple-system-atrophy
#3
Tereza Tykalova, Jan Rusz, Jiri Klempir, Roman Cmejla, Evzen Ruzicka
Distinct speech characteristics that may aid in differentiation between Parkinson's disease (PD), progressive supranuclear palsy (PSP) and multiple system atrophy (MSA) remain tremendously under-explored. Here, the patterns and degree of consonant articulation deficits across voiced and voiceless stop plosives in 16 PD, 16 PSP, 16 MSA and 16 healthy control speakers were evaluated using acoustic and perceptual methods. Imprecise consonant articulation was observed across all Parkinsonian groups. Voice onset time of voiceless plosives was more prolonged in both PSP and MSA compared to PD, presumably due to greater severity of dysarthria and slower articulation rate...
November 25, 2016: Brain and Language
https://www.readbyqxmd.com/read/27891743/ingressive-speech-errors-a-service-evaluation-of-speech-sound-therapy-in-a-child-aged-4-6
#4
Laura Hrastelj, Rachael-Anne Knight
BACKGROUND: A pattern of ingressive substitutions for word-final sibilants can be identified in a small number of cases in child speech disorder, with growing evidence suggesting it is a phonological difficulty, despite the unusual surface form. Phonological difficulty implies a problem with the cognitive process of organizing speech into sound contrasts. AIMS: To evaluate phonological therapy approaches in the remediation of non-pulmonic speech errors. Thus, adding to evidence concerning the nature of ingressive substitutions and their remediation whilst highlighting their occurrence within child speech disorder population for practising and training speech and language therapists...
November 27, 2016: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/27880768/real-time-control-of-an-articulatory-based-speech-synthesizer-for-brain-computer-interfaces
#5
Florent Bocquelet, Thomas Hueber, Laurent Girin, Christophe Savariaux, Blaise Yvert
Restoring natural speech in paralyzed and aphasic people could be achieved using a Brain-Computer Interface (BCI) controlling a speech synthesizer in real-time. To reach this goal, a prerequisite is to develop a speech synthesizer producing intelligible speech in real-time with a reasonable number of control parameters. We present here an articulatory-based speech synthesizer that can be controlled in real-time for future BCI applications. This synthesizer converts movements of the main speech articulators (tongue, jaw, velum, and lips) into intelligible speech...
November 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27836742/peripheral-facial-palsy-speech-communication-and-oral-motor-function
#6
T Movérare, A Lohmander, M Hultcrantz, L Sjögreen
OBJECTIVES: The aim of the present study was to examine the effect of acquired unilateral peripheral facial palsy on speech, communication and oral functions and to study the relationship between the degree of facial palsy and articulation, saliva control, eating ability and lip force. MATERIALS AND METHODS: In this descriptive study, 27 patients (15 men and 12 women, mean age 48years) with unilateral peripheral facial palsy were included if they were graded under 70 on the Sunnybrook Facial Grading System...
November 8, 2016: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/27833334/mandibular-reconstruction-overview
#7
REVIEW
Batchu Pavan Kumar, V Venkatesh, K A Jeevan Kumar, B Yashwanth Yadav, S Ram Mohan
INTRODUCTION: Mandibular reconstruction has changed significantly over the years and continues to evolve with the introduction of newer technologies and techniques. PURPOSE: This article reviews the history of oromandibular reconstruction, biomechanics of mandible, summarizes the reconstruction options available for mandible with defect classification, goals in reconstruction, the various donor sites, current reconstructive options, dental rehabilitation and persistent associated problems...
December 2016: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/27821280/the-hearing-ear-is-always-found-close-to-the-speaking-tongue-review-of-the-role-of-the-motor-system-in-speech-perception
#8
REVIEW
Jeremy I Skipper, Joseph T Devlin, Daniel R Lametti
Does "the motor system" play "a role" in speech perception? If so, where, how, and when? We conducted a systematic review that addresses these questions using both qualitative and quantitative methods. The qualitative review of behavioural, computational modelling, non-human animal, brain damage/disorder, electrical stimulation/recording, and neuroimaging research suggests that distributed brain regions involved in producing speech play specific, dynamic, and contextually determined roles in speech perception...
November 4, 2016: Brain and Language
https://www.readbyqxmd.com/read/27803574/speech-outcome-in-oral-cancer-patients-pre-and-post-operative-evaluation-a-cross-sectional-study
#9
Gomathi Saravanan, Venkatesan Ranganathan, Anitha Gandhi, V Jaya
AIM: The tongue plays a major role in articulation. Speech outcome depends on the site of lesion, extent of resection, and flexibility of the remaining structures. The aim of this study is to evaluate the speech outcome measures such as sounds that are misarticulated and speech intelligibility and its connection to tumor site before and after surgery. METHODOLOGY: Totally, 24 (12 pre- and 12 post-operative patients) patients who had buccal and tongue cancer underwent speech intelligibility rating and articulation screening...
October 2016: Indian Journal of Palliative Care
https://www.readbyqxmd.com/read/27801867/towards-contactless-silent-speech-recognition-based-on-detection-of-active-and-visible-articulators-using-ir-uwb-radar
#10
Young Hoon Shin, Jiwon Seo
People with hearing or speaking disabilities are deprived of the benefits of conventional speech recognition technology because it is based on acoustic signals. Recent research has focused on silent speech recognition systems that are based on the motions of a speaker's vocal tract and articulators. Because most silent speech recognition systems use contact sensors that are very inconvenient to users or optical systems that are susceptible to environmental interference, a contactless and robust solution is hence required...
October 29, 2016: Sensors
https://www.readbyqxmd.com/read/27794314/the-bursts-of-stops-can-convey-dialectal-information
#11
Charalambos Themistocleous
This study investigates the effects of the dialect of the speaker on the spectral properties of stop bursts. Forty-five female speakers-20 Standard Modern Greek and 25 Cypriot Greek speakers-participated in this study. The spectral properties of stop bursts were calculated from the burst spectra and analyzed using spectral moments. The findings show that besides linguistic information, i.e., the place of articulation and the stress, the speech signals of bursts can encode social information, i.e., the dialects...
October 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27783395/age-differences-in-sequential-speech-production-articulatory-and-physiological-factors
#12
Mylène Bilodeau-Mercure, Pascale Tremblay
OBJECTIVES: To explore age differences in speech production in relation to orofacial physiology. DESIGN: Cross-sectional quasi-experimental group study. SETTING: General community. PARTICIPANTS: Physically and cognitively healthy volunteers recruited from the community (N = 30), including 15 young (18-39) and 15 older (66-85) adults. MEASUREMENTS: Accuracy and speech rate were calculated during the production of sequences of syllables containing oral vowels, nasal vowels, or both...
November 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27773945/cross-language-activation-begins-during-speech-planning-and-extends-into-second-language-speech
#13
April Jacobs, Melinda Fricke, Judith F Kroll
Three groups of native English speakers named words aloud in Spanish, their second language (L2). Intermediate proficiency learners in a classroom setting (Experiment 1) and in a domestic immersion program (Experiment 2) were compared to a group of highly proficient English-Spanish speakers. All three groups named cognate words more quickly and accurately than matched noncognates, indicating that all speakers experienced cross-language activation during speech planning. However, only the classroom learners exhibited effects of cross-language activation in their articulation: Cognate words were named with shorter overall durations, but longer (more English-like) voice onset times...
2016: Language Learning
https://www.readbyqxmd.com/read/27750464/do-long-term-tongue-piercings-affect-speech-quality
#14
Esther Heinen, Peter Birkholz, Klaus Willmes, Christiane Neuschaefer-Rube
PURPOSE: To explore possible effects of tongue piercing on perceived speech quality. METHODS: Using a quasi-experimental design, we analyzed the effect of tongue piercing on speech in a perception experiment. Samples of spontaneous speech and read speech were recorded from 20 long-term pierced and 20 non-pierced individuals (10 males, 10 females each). The individuals having a tongue piercing were recorded with attached and removed piercing. The audio samples were blindly rated by 26 female and 20 male laypersons and by 5 female speech-language pathologists with regard to perceived speech quality along 5 dimensions: speech clarity, speech rate, prosody, rhythm and fluency...
October 18, 2016: Logopedics, Phoniatrics, Vocology
https://www.readbyqxmd.com/read/27729154/enhancing-surgical-outcomes-the-effects-of-speech-therapy-on-a-school-aged-girl-with-moebius-syndrome
#15
Elizabeth Fairgray, Anna Miles
PURPOSE: Moebius Syndrome is a rare congenital neurological condition often characterized by multiple cranial nerve involvement. This case study presents an eight-year old girl with Moebius Syndrome (MC) who received 30 sessions of speech therapy. This occurred after presenting to clinic 11 months after left facial reanimation with gracilis thigh muscle transfer surgery. On examination, only flickers of left facial movement were observed. There was no movement on the right side of the face...
November 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27729137/electrophysiological-and-phonological-change-detection-measures-of-auditory-word-processing-in-normal-persian-speaking-children
#16
Seyyede Zohreh Ziatabar Ahmadi, Saeid Mahmoudian, Hasan Ashayeri, Farshid Allaeddini, Mohammad Farhadi
OBJECTIVE: Auditory phoneme discrimination is a basic and important prerequisite for acquiring speech, reading, and spelling skills. Children, who are unable to perceive auditory phoneme discrimination, cannot develop phonemic representations. Therefore, the early identification of these deficits and application of effective therapeutic approaches is a necessity. We need to assess appropriately word or sound discrimination in normal populations using an objective passive task such as mismatch negativity (MMN)...
November 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27697486/enhancing-speech-envelope-by-integrating-hair-cell-adaptation-into-cochlear-implant-processing
#17
Mahan Azadpour, Robert L Smith
Cochlear implants (CIs) bypass some of the mechanisms that underlie normal neural behavior as occurs in acoustic hearing. One such neural mechanism is short-term adaptation, which has been proposed to have a significant role in speech perception. Acoustically-evoked neural adaptation has been mainly attributed to the depletion of neurotransmitter in the hair-cell to auditory-nerve synapse and is therefore not fully present in CI stimulation. This study evaluated a signal processing method that integrated a physiological model of hair-cell adaptation into CI speech processing...
September 30, 2016: Hearing Research
https://www.readbyqxmd.com/read/27687571/volitional-exaggeration-of-body-size-through-fundamental-and-formant-frequency-modulation-in-humans
#18
Katarzyna Pisanski, Emanuel C Mora, Annette Pisanski, David Reby, Piotr Sorokowski, Tomasz Frackowiak, David R Feinberg
Several mammalian species scale their voice fundamental frequency (F0) and formant frequencies in competitive and mating contexts, reducing vocal tract and laryngeal allometry thereby exaggerating apparent body size. Although humans' rare capacity to volitionally modulate these same frequencies is thought to subserve articulated speech, the potential function of voice frequency modulation in human nonverbal communication remains largely unexplored. Here, the voices of 167 men and women from Canada, Cuba, and Poland were recorded in a baseline condition and while volitionally imitating a physically small and large body size...
September 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27669372/tooth-borne-anterior-maxillary-distraction-for-cleft-maxillary-hypoplasia-our-experience-with-147-patients
#19
Sunil Richardson, Dhivakar Selvaraj, Rakshit V Khandeparker, Nikkie S Seelan, Shweta Richardson
PURPOSE: To evaluate the results of anterior maxillary distraction for its efficacy and long-term stability in the management of cleft maxillary hypoplasia in a large series of patients with a long-term follow-up extending to 4 years. MATERIALS AND METHODS: One hundred sixty-four patients at least 10 years old with cleft maxillary hypoplasia who presented to the authors' unit from January 2009 through October 2014 were evaluated retrospectively, irrespective of gender, type of cleft lip and palate, and amount of advancement needed...
December 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27662325/articulation-features-of-parkinson-s-disease-patients-with-subthalamic-nucleus-deep-brain-stimulation
#20
Yasuhiro Tanaka, Takashi Tsuboi, Hirohisa Watanabe, Yasukazu Kajita, Daisuke Nakatsubo, Yasushi Fujimoto, Reiko Ohdake, Mizuki Ito, Naoki Atsuta, Masahiko Yamamoto, Toshihiko Wakabayashi, Masahisa Katsuno, Gen Sobue
BACKGROUND: Voice and speech disorders are one of the most important issues after subthalamic nucleus deep brain stimulation (STN-DBS) in Parkinson's disease (PD) patients. However, articulation features in this patient population remain unclear. OBJECTIVE: We studied the articulation features of PD patients with STN-DBS. METHODS: Participants were 56 PD patients treated with STN-DBS (STN-DBS group) and 41 patients treated only with medical therapy (medical-therapy-alone group)...
October 19, 2016: Journal of Parkinson's Disease
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