Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 4.683
Filtrar
1.
Am J Speech Lang Pathol ; 30(2): 503-516, 2021 03 26.
Artigo em Inglês | MEDLINE | ID: mdl-33689471

RESUMO

Purpose COVID-19 has shifted models of health care delivery, requiring the rapid adoption of telehealth, despite limited evidence and few resources to guide speech-language pathologists. Management of dysarthria presents specific challenges in the telehealth modality. Evaluations of dysarthria typically rely heavily on perceptual judgments, which are difficult to obtain via telehealth given a variety of technological factors such as inconsistencies in mouth-to-microphone distance, changes to acoustic properties based on device settings, and possible interruptions in connection that may cause video freezing. These factors limit the validity, reliability, and clinicians' certainty of perceptual speech ratings via telehealth. Thus, objective measures to supplement the assessment of dysarthria are essential. Method This tutorial outlines how to obtain objective measures in real time and from recordings of motor speech evaluations to support traditional perceptual ratings in telehealth evaluations of dysarthria. Objective measures include pause patterns, utterance length, speech rate, diadochokinetic rates, and overall speech severity. We demonstrate, through clinical case vignettes, how these measures were completed following three clinical telehealth evaluations of dysarthria conducted via Zoom during the COVID-19 pandemic. This tutorial describes how each of these objective measures were utilized, in combination with subjective perceptual analysis, to determine deviant speech characteristics and their etiology, develop a patient-specific treatment plan, and track change over time. Conclusion Utilizing objective measures as an adjunct to perceptual ratings for telehealth dysarthria evaluations is feasible under real-world pandemic conditions and can be used to enhance the quality and utility of these evaluations.


Assuntos
Disartria/terapia , Patologia da Fala e Linguagem/métodos , Telemedicina/métodos , /epidemiologia , Humanos , Pandemias , Inteligibilidade da Fala , Telemedicina/normas
2.
Aerosp Med Hum Perform ; 92(4): 274-280, 2021 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-33752791

RESUMO

INTRODUCTION: In response to the urgent need for safe aircrew respiratory protection due to the COVID-19 pandemic, three small descriptive evaluations were conducted with aircrew and air traffic controllers (ATC) that assessed the impact of mask use on safety and performance onboard rotary wing aircraft.METHODS: A series of evaluations assessed aircrew performance using the 3MTM Model 1860 N95 respiratory protection mask, two aviation-specific cloth mask prototypes, and a commercial off-the-shelf aviation-specific cloth mask. The series of evaluations included different sets of subjects consisting of up to five Black Hawk helicopter aircrew members, air traffic control (ATC), and 12 CH-47 aircrew members. The Modified Rhyme Test was used to measure speech intelligibility and was administered in the UH-60 among crewmembers of the same aircraft, between pilots of different aircraft, and between the pilots and ATC. Measures of workload, usability, comfort, and pulse oximetry were also administered.RESULTS: Results from the Modified Rhyme Test indicated that all subjects scored greater than 80% accuracy given the proper microphone positioning relative to the mask. With respect to workload, NASA-TLX total scores for the perform radio communications task was 50.83.DISCUSSION: Despite an elevated perceived degree of workload on the communications flight task, results from the speech intelligibility test indicated that performance was maintained within the acceptable range as defined by MIL-STD-1474E, Design Criteria Standard Noise Limit. This abbreviated evaluation suggests that the face masks tested are safe for use by helicopter aircrew under the conditions tested.Cave KM, Kelley AM, Feltman KA, Gerstner JA, Stewart JL, Crowley JS. Aircrew performance and safety while using protective masks in response to coronavirus disease. Aerosp Med Hum Perform. 2021; 92(4):274280.


Assuntos
Aeronaves , Máscaras , Testes de Discriminação da Fala , Inteligibilidade da Fala , Humanos , Rádio , Segurança , Carga de Trabalho
3.
Vestn Otorinolaringol ; 86(1): 20-24, 2021.
Artigo em Russo | MEDLINE | ID: mdl-33720646

RESUMO

Spatial and speech characteristics of hearing are needed to monitor the rehabilitation of sensorineural hearing loss in patients of older age groups. Using the created «Program for the assessment of speech, spatial and qualitative characteristics of hearing using virtual reality¼ increases the level of hearing diagnostics using a computerized audiovisual script. The purpose of the study is a comparative analysis of the speech, spatial and qualitative characteristics of hearing before and after using virtual reality in patients of older age groups. The results of the study showed that with good tolerance of virtual reality in 48.3% of patients, the answers to the questions of the SSQrus-12 questionnaire for assessing the spatial and speech characteristics of hearing became more objective. The developed methodology supplemented the group of modern diagnostic methods for spatial and verbal hearing by immersing the patient in a virtual environment in the created audiovisual scenario.


Assuntos
Perda Auditiva Neurossensorial , Percepção da Fala , Realidade Virtual , Idoso , Audição , Perda Auditiva Neurossensorial/diagnóstico , Perda Auditiva Neurossensorial/epidemiologia , Humanos , Inteligibilidade da Fala
4.
Codas ; 33(1): e20190214, 2021.
Artigo em Português, Inglês | MEDLINE | ID: mdl-33533830

RESUMO

PURPOSE: To evaluate speech intelligibility and dysarthria, correlated to the functional assessment of Amyotrophic Lateral Sclerosis (ALS). METHODS: Quantitative-descriptive study approved by REC under No. CAAE 62912416.4.0000.5404, comprised of 19 individuals with sporadic or familiar ALS. Data were collected using the Dysarthria Protocol and the Revised Amyotrophic Lateral Sclerosis Functional Rating Scale (ALSFRS-Re). We used visual analogue scale (VAS) to assess speech intelligibility and summary measures; and Spearman's coefficients of correlation for the instruments with significance level of 5%. RESULTS: Speech intelligibility is compromised (41.37±39.73) in varied degrees with positive correlation with the general degree of dysarthria (p=<.0001), and with all the analyzed speech parameters, indicating impact on the speech deterioration of the studied group. There is negative correlation between speech intelligibility and the results of the bulbar sections - speech and deglutition (p=0.0166), arm - activities with the upper limb (p=0.0064) and leg - activities with the lower limb (p=0.0391). Breathing (p=0.0178), phonation (p=0.0334) and resonance (p=0.0053) parameters showed a negative correlation with the item "speech" of the ALSFRS-Re. CONCLUSION: Results show impaired speech intelligibility and dysarthria, and evidence breathing, phonation and resonance as important markers of the disease progression. A thorough and early evaluation of the oral motor production allows for a better management of alterations in ALS.


Assuntos
Esclerose Amiotrófica Lateral , Inteligibilidade da Fala , Esclerose Amiotrófica Lateral/complicações , Disartria/diagnóstico , Disartria/etiologia , Humanos , Fala , Distúrbios da Fala , Medida da Produção da Fala
5.
J Acoust Soc Am ; 148(6): 3663, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33379881

RESUMO

With the COVID-19 pandemic, the wearing of face masks covering mouth and nose has become ubiquitous all around the world. This study investigates the impact of typical face masks on voice radiation. To analyze the transmission loss caused by masks and the influence of masks on directivity, this study measured the full-spherical voice directivity of a dummy head with a mouth simulator covered with six masks of different types, i.e., medical masks, filtering facepiece respirator masks, and cloth face coverings. The results show a significant frequency-dependent transmission loss, which varies depending on the mask, especially above 2 kHz. Furthermore, the two facepiece respirator masks also significantly affect speech directivity, as determined by the directivity index (DI). Compared to the measurements without a mask, the DI deviates by up to 7 dB at frequencies above 3 kHz. For all other masks, the deviations are below 2 dB in all third-octave frequency bands.


Assuntos
/prevenção & controle , Máscaras , Acústica da Fala , Inteligibilidade da Fala , Voz , Humanos
6.
J Acoust Soc Am ; 148(6): 3562, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33379897

RESUMO

Wearing face masks (alongside physical distancing) provides some protection against infection from COVID-19. Face masks can also change how people communicate and subsequently affect speech signal quality. This study investigated how three common face mask types (N95, surgical, and cloth) affected acoustic analysis of speech and perceived intelligibility in healthy subjects. Acoustic measures of timing, frequency, perturbation, and power spectral density were measured. Speech intelligibility and word and sentence accuracy were also examined using the Assessment of Intelligibility of Dysarthric Speech. Mask type impacted the power distribution in frequencies above 3 kHz for the N95 mask, and above 5 kHz in surgical and cloth masks. Measures of timing and spectral tilt mainly differed with N95 mask use. Cepstral and harmonics to noise ratios remained unchanged across mask type. No differences were observed across conditions for word or sentence intelligibility measures; however, accuracy of word and sentence translations were affected by all masks. Data presented in this study show that face masks change the speech signal, but some specific acoustic features remain largely unaffected (e.g., measures of voice quality) irrespective of mask type. Outcomes have bearing on how future speech studies are run when personal protective equipment is worn.


Assuntos
/prevenção & controle , Máscaras/efeitos adversos , Acústica da Fala , Inteligibilidade da Fala , Adulto , Feminino , Humanos , Masculino , Qualidade da Voz , Adulto Jovem
7.
Annu Int Conf IEEE Eng Med Biol Soc ; 2020: 952-955, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-33018142

RESUMO

In this paper, a dual-channel speech enhancement (SE) method is proposed. The proposed method is a combination of minimum variance distortionless response (MVDR) beamformer and a super-Gaussian joint maximum a posteriori (SGJMAP) based SE gain function. The proposed SE method runs on a smartphone in real-time, providing a portable device for hearing aid (HA) applications. Spectral Flux based voice activity detector (VAD) is used to improve the accuracy of the beamformer output. The efficiency of the proposed SE method is evaluated using speech quality and intelligibility measures and compared with that of other SE techniques. The objective and subjective test results show the capability of the proposed SE method in three different noisy conditions at low signal to noise ratios (SNRs) of -5, 0, and +5 dB.


Assuntos
Auxiliares de Audição , Smartphone , Voz , Humanos , Ruído , Inteligibilidade da Fala
8.
Annu Int Conf IEEE Eng Med Biol Soc ; 2020: 956-959, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-33018143

RESUMO

Deep neural networks (DNNs) have been useful in solving benchmark problems in various domains including audio. DNNs have been used to improve several speech processing algorithms that improve speech perception for hearing impaired listeners. To make use of DNNs to their full potential and to configure models easily, automated machine learning (AutoML) systems are developed, focusing on model optimization. As an application of AutoML to audio and hearing aids, this work presents an AutoML based voice activity detector (VAD) that is implemented on a smartphone as a real-time application. The developed VAD can be used to elevate the performance of speech processing applications like speech enhancement that are widely used in hearing aid devices. The classification model generated by AutoML is computationally fast and has minimal processing delay, which enables an efficient, real-time operation on a smartphone. The steps involved in real-time implementation are discussed in detail. The key contribution of this work include the utilization of AutoML platform for hearing aid applications and the realization of AutoML model on smartphone. The experimental analysis and results demonstrate the significance and importance of using the AutoML for the current approach. The evaluations also show improvements over the state of art techniques and reflect the practical usability of the developed smartphone app in different noisy environments.


Assuntos
Auxiliares de Audição , Smartphone , Aprendizado de Máquina , Ruído , Inteligibilidade da Fala
9.
Annu Int Conf IEEE Eng Med Biol Soc ; 2020: 3314-3317, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-33018713

RESUMO

Reverberation reduces speech quality, and therefore causes inconveniency to listeners, especially those using assistive hearing devices. To enhance the quality of reverberant speech, a significant step is speech quality assessment, most of which are based on subjective judgements. Subjective evaluations vary with listeners' perception, emotional and mental states. To obtain an objective assessment of speech quality in reverberation, this work carried out an event related potential (ERP) study using a passive oddball paradigm. Listeners were presented with anechoic speech as standard stimuli mixed with reverberant speech under different levels of reverberation as deviant stimuli. The ERP responses reveal how human-beings' subconsciousness interacts with different levels of reverberation in the perceived speech. Results showed that the peak amplitude of P300 in ERP responses followed the variation of reverberation time in reverberant speech, providing evidence that P300 in ERP responses could work as a neural surrogate of reverberation time in objective speech quality assessment.


Assuntos
Perda Auditiva Neurossensorial , Percepção da Fala , Audição , Humanos , Ruído , Inteligibilidade da Fala
10.
PLoS One ; 15(8): e0236469, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32756594

RESUMO

Speech perception in noise is challenging and is improved by binaural hearing. Since signal processing of assistive hearing devices often modifies or masks the peripheral binaural head-shadow or better-ear effects, central binaural processing should be measured separately. In a prospective study, 10 listeners with normal hearing were tested with the German matrix sentence test in a set-up with two loudspeakers located at opposite angles in the horizontal plane with respect to S0N0. The speech reception threshold (SRT) was investigated depending on the separation angle between speech and noise. The lowest (best) SRT was obtained for a separation of target and interfering source from S0N0 at an angle of about S±60°N∓60°. The derived normative curve was comparable to SRTs predicted by the binaural-speech-intelligibility-model. The systematic separation of signal and noise showed a significant improvement in speech intelligibility for normal-hearing people even for small separation angles. This experimental setting was verified. This study aimed to assess the effect of small sound source separation on binaural hearing and speech perception.


Assuntos
Auxiliares de Audição , Audição/fisiologia , Equipamentos de Autoajuda , Percepção da Fala/fisiologia , Adulto , Percepção Auditiva/fisiologia , Limiar Auditivo/fisiologia , Implantes Cocleares , Orelha/fisiologia , Feminino , Testes Auditivos/métodos , Humanos , Masculino , Ruído , Estudos Prospectivos , Equipamentos de Autoajuda/normas , Fala/fisiologia , Inteligibilidade da Fala/fisiologia , Adulto Jovem
11.
Artigo em Chinês | MEDLINE | ID: mdl-32842223

RESUMO

Objective:To compare the efficacy of cochlear implantation in deaf patients with Mondini malformation and normal anatomical structure of inner ear, and to determine whether cochlear implantation can be an effective way to reconstruct hearing in hearing loss patients with Mondini malformation, so as to guide clinical work. Method:Literature search was conducted on PubMed, YZ365. com, Wip medicine, Wanfang data, CHKD, CNKI and other electronic databases to search case control studies on postoperative rehabilitation effect of deafness patients with Mondini deformity and normal structure of inner ear. Execute Meta-analysis by using RevMan 5.3 software. Result:Eleven articles were included and 1 371 patients were involved. Meta-analysis showed that the probability of Mondini abnormalities in patients with intraoperative complications(Z=6.62, P<0.01), electrode reaction T value(Z=6.08, P<0.01), postoperative hearing threshold(500 Hz, 1 000 Hz and 2 000 Hz) is greater than the control group, neural response telemetry(Z=3.44, P<0.01) and categories of auditory performance score(Z=5.27, P<0.01) is lower than the control group, about postoperative complications(Z=1.01, P>0.05) and speech intelligibility rating score(Z=1.41, P>0.05) there was no statistically significant difference with the control group. Conclusion:Cochlear implantation can be a mean of treatment and rehabilitation for deafness patients with Mondini deformity, and is necessary for hearing reconstruction. Further multi-parameter controlled studies with longer follow-up periods and larger samples will increase the credibility for the efficacy of cochlear implants in deafness patients with Mondini malformation.


Assuntos
Implante Coclear , Implantes Cocleares , Surdez , Orelha Interna/cirurgia , Percepção da Fala , Audição , Humanos , Inteligibilidade da Fala
12.
J Laryngol Otol ; 134(7): 577-581, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32641175

RESUMO

BACKGROUND: Coronavirus disease 2019 personal protective equipment has been reported to affect communication in healthcare settings. This study sought to identify those challenges experimentally. METHOD: Bamford-Kowal-Bench speech discrimination in noise performance of healthcare workers was tested under simulated background noise conditions from a variety of hospital environments. Candidates were assessed for ability to interpret speech with and without personal protective equipment, with both normal speech and raised voice. RESULTS: There was a significant difference in speech discrimination scores between normal and personal protective equipment wearing subjects in operating theatre simulated background noise levels (70 dB). CONCLUSION: Wearing personal protective equipment can impact communication in healthcare environments. Efforts should be made to remind staff about this burden and to seek alternative communication paradigms, particularly in operating theatre environments.


Assuntos
Comunicação , Infecções por Coronavirus/terapia , Equipamento de Proteção Individual/efeitos adversos , Pneumonia Viral/terapia , Adulto , Feminino , Humanos , Unidades de Terapia Intensiva , Masculino , Pessoa de Meia-Idade , Salas Cirúrgicas , Pandemias , Recursos Humanos em Hospital/psicologia , Fala , Inteligibilidade da Fala
13.
PLoS One ; 15(6): e0235083, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32579618

RESUMO

Cognitive flexibility is the ability to switch between different concepts or to adapt goal-directed behavior in a changing environment. Although, cognitive research on this ability has long been focused on the individual mind, it is becoming increasingly clear that cognitive flexibility plays a central role in our social life. This is particularly evident in turn-taking in verbal conversation, where cognitive flexibility of the individual becomes part of social flexibility in the dyadic interaction. In this work, we introduce a model that reveals different parameters that explain how people flexibly handle unexpected events in verbal conversation. In order to study hypotheses derived from the model, we use a novel experimental approach in which thirty pairs of participants engaged in a word-by-word interaction by taking turns in generating sentences word by word. Similar to well established individual cognitive tasks, participants needed to adapt their behavior in order to respond to their co-actor's last utterance. With our experimental approach we could manipulate the interaction between participants: Either both participants had to construct a sentence with a common target word (congruent condition) or with distinct target words (incongruent condition). We further studied the relation between the interactive Word-by-Word task measures and classical individual-centered, cognitive tasks, namely the Number-Letter task, the Stop-Signal task, and the GoNogo task. In the Word-by-Word task, we found that participants had faster response times in congruent compared to incongruent trials, which replicates the primary findings of standard cognitive tasks measuring cognitive flexibility. Further, we found a significant correlation between the performance in the Word-by-Word task and the Stop-Signal task indicating that participants with a high cognitive flexibility in the Word-by-Word task also showed high inhibition control.


Assuntos
Cognição/fisiologia , Desempenho Psicomotor/fisiologia , Tempo de Reação/fisiologia , Inteligibilidade da Fala/fisiologia , Adulto , Comunicação , Feminino , Humanos , Masculino , Testes Neuropsicológicos , Percepção da Fala/fisiologia , Adulto Jovem
14.
Trends Hear ; 24: 2331216520930531, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32573373

RESUMO

Dynamic range compression is a compensation strategy commonly used in modern hearing aids. Fast-acting systems respond relatively quickly to the fluctuations in the input level. This allows for more effective compression of the dynamic range of speech and hence enhanced the audibility of its low-intensity components. However, such processing also amplifies the background noise, distorts the modulation spectra of both the speech and the background, and can reduce the output signal-to-noise ratio (SNR). Recently, May et al. proposed a novel SNR-aware compression strategy, in which the compression speed is adapted depending on whether speech is present or absent. Fast-acting compression is applied to speech-dominated time-frequency (T-F) units, while noise-dominated T-F units are processed using slow-acting compression. It has been shown that this strategy provides a similar effective compression of the speech dynamic range as conventional fast-acting compression, while introducing fewer distortions of the modulation spectrum of the background and providing an improved output SNR. In this study, this SNR-aware compression strategy was compared with conventional fast- and slow-acting compression in terms of speech intelligibility and subjective preference in a group of 17 hearing-impaired listeners with varying degree of hearing loss. The results show a speech intelligibility benefit of the SNR-aware compression strategy over the conventional slow-acting system. Furthermore, the SNR-aware approach demonstrates an increased subjective preference compared with both conventional fast- and slow-acting systems.


Assuntos
Auxiliares de Audição , Perda Auditiva Neurossensorial , Percepção da Fala , Humanos , Ruído/efeitos adversos , Razão Sinal-Ruído , Inteligibilidade da Fala
15.
HNO ; 68(10): 773-779, 2020 Oct.
Artigo em Alemão | MEDLINE | ID: mdl-32390058

RESUMO

OBJECTIVE: The Freiburg monosyllabic test (FBE) has been an important German speech audiometry test for years. It is nowadays also used to assess the benefit of hearing aids in noise (FBE-S). This study investigates hearing in noise using the FBE at different sound pressure levels and a signal to noise ratio of 5 dB to generate a recognition curve. METHODS: In autumn 2018, 60 normal-hearing German native speakers (age 18-31 years) participated in the study at the military hospital in Hamburg. Using one FBE test list, speech intelligibility was measured from sound pressure levels of 15 to 90 dB in 5­dB steps with a noise level 5 dB lower in each case. Subsequently, the average of all intelligibility rates and 95% confidence intervals (CI) were determined. RESULTS: Participants comprised 29 female and 31 male subjects. Average age was 24.32 years (±3.29 years). The fixed effects analysis of variance with recognition as the dependent variable demonstrated a highly significant correlation between the levels of sounds/noise and the intelligibility of speech (p < 0.0001). The average intelligibility rates with 95% CI and the frequency distributions were presented tabularly and graphically. CONCLUSION: In comparison to the normative curve, the FBE­S recognition curve is shifted to the right. The average values of the FBE­S reach the saturation area at a volume of 70/65 dB with an intelligibility rate of 90% (for comparison: the point of saturation for 100% intelligibility of the FBE without noise is reached at 55 dB). Using these averaged values of the FBE­S enables better interpretation of individual results without and with hearing aids. In the future, the benefit of hearing aids should be measured at lower noise levels than it is today.


Assuntos
Audiometria da Fala , Auxiliares de Audição , Ruído , Percepção da Fala , Feminino , Humanos , Masculino , Razão Sinal-Ruído , Testes de Discriminação da Fala , Inteligibilidade da Fala
16.
PLoS One ; 15(4): e0232024, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32324825

RESUMO

High-speed trains are operated in increasingly complex railway networks and continual improvement of driver assistance systems is necessary to maintain safety. Speech offers the opportunity to provide information to the driver without disrupting visual attention. However, it is not known whether the transient pressure changes inside trains passing through tunnels interfere with speech intelligibility. Our primary goal was to test whether the most severe pressure variations occurring in high-speed trains (25 hPa in 2 s) affect speech intelligibility in individuals with normal hearing ability and secondly whether a potential effect would depend on the direction of the pressure change. A cross-over design was used to compare speech intelligibility, measured with the monosyllable word test by Wallenberg and Kollmeier, in steady ambient pressure versus subsequent to pressure events, both realised in a pressure chamber. Since data for a power calculation did not exist, we conducted a pilot study with 20 participants to estimate variance of intra-individual differences. The upper 80% confidence limit guided sample size of the main campaign, which was performed with 72 participants to identify a 10% difference while limiting alpha (5%) and beta error (10%). On average, a participant understood 0.7 fewer words following a pressure change event compared to listening in steady ambient pressure. However, this intra-individual differences varied strongly between participants, standard deviation (SD) ± 4.5 words, resulting in a negligible effect size of 0.1 and the Wilcoxon signed rank test (Z = -1.26; p = 0.21) did not distinguish it from chance. When comparing decreasing and increasing pressure events an average of 0.2 fewer words were understood (± 3.9 SD). The most severe pressure changes expected to occur in high-speed trains passing through tunnels do not interfere with speech intelligibility and are in itself not a risk factor for loss of verbal information transmission.


Assuntos
Orelha Média/fisiologia , Inteligibilidade da Fala/fisiologia , Percepção da Fala/fisiologia , Adulto , Pressão Atmosférica , Estudos Cross-Over , Feminino , Testes Auditivos , Humanos , Masculino , Ruído , Projetos Piloto , Estudos Prospectivos , Ferrovias , Tamanho da Amostra , Adulto Jovem
18.
Int J Pediatr Otorhinolaryngol ; 134: 110035, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32298924

RESUMO

INTRODUCTION: Tongue-tie, or ankyloglossia, occurs in 4-10% of the population. Treatment of tongue-tie has increased by 420% in Australia between 2006 and 2016 and 866% in the United States between 1997 and 2012. Despite limited evidence, it has been suggested that tongue-tie can result in speech sound disorder (SSD). This study aimed to investigate tongue mobility and speech production outcomes in children with and without tongue-tie diagnoses. METHOD: Fifty-nine children aged 2; 1 to 4; 11 years were recruited and formed three groups: treated tongue-tie (TTT), untreated tongue-tie (UTT) and no tongue-tie (NTT). Measures of lingual frenulum structure and function, tongue mobility, speech production, and parent and clinician intelligibility ratings were collected. RESULTS: No statistically significant differences were found between the TTT, UTT and NTT groups for tongue mobility, speech production or intelligibility. Significantly more UTT children had a history of speech pathology attendance than participants in the NTT group. CONCLUSION: This study provides preliminary evidence of no difference between tongue mobility and speech outcomes in young children with or without intervention for tongue-tie during infancy. This study assists with clinical decision making and makes recommendations for families not to proceed with surgical intervention for tongue-tie during infancy, for the sole outcome of improving speech production later in life.


Assuntos
Anquiloglossia/complicações , Inteligibilidade da Fala , Transtorno Fonológico/etiologia , Língua/fisiopatologia , Anquiloglossia/fisiopatologia , Anquiloglossia/cirurgia , Estudos de Casos e Controles , Pré-Escolar , Tomada de Decisão Clínica , Feminino , Humanos , Freio Lingual/cirurgia , Masculino , Projetos Piloto , Transtorno Fonológico/diagnóstico , Transtorno Fonológico/fisiopatologia
20.
PLoS One ; 15(4): e0231089, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32348318

RESUMO

How well L2 English is understood and how L2 English speakers perceive one another within varying communication contexts has been studied relatively rarely, even though most speakers of English in the world are L2 speakers. In this matched-guise experiment (N = 1699) the effects of L1 and L2 English accents and communication context were tested on speech understandability (intelligibility, comprehensibility, interpretability) and speaker evaluations (status, affect, dynamism). German (N = 617), Spanish (N = 540), and Singaporean listeners (N = 542) were asked to evaluate three accents (Dutch-accented English, standard British English, standard American English) in three communication contexts (Lecture, Audio Tour, Job Pitch). The main finding is that the Dutch-accented English accent was understood as well as the two L1 English accents. Furthermore, Dutch-accented English evoked equally positive evaluations to the two L1 English accents in German listeners, and more positive evaluations than the two L1 English accents in Spanish and Singaporean listeners. These results suggest that accent training aimed at achieving an L1 English accent may not always be necessary for (Dutch) English language learners, especially when they are expected to mostly interact with other L2 speakers of English. More generally, our results indicate that L2 English speakers' understanding and their evaluation of L1 and L2 Englishes would not seem to reflect traditional language norms. Instead, they seem to reflect the socio-cultural embedding of a language norm in a Lingua Franca English speech community that does not view accent varieties as a hindrance to successful communication.


Assuntos
Idioma , Multilinguismo , Inteligibilidade da Fala , Percepção da Fala , Adulto , Percepção Auditiva/fisiologia , Cognição/fisiologia , Feminino , Alemanha , Humanos , Aprendizagem/fisiologia , Masculino , Singapura , Espanha , Percepção da Fala/fisiologia , Reino Unido , Estados Unidos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...