Read by QxMD icon Read

Speech enhancement

Christian Young, Hasantha Gunasekera, Kelvin Kong, Alison Purcell, Sumithra Muthayya, Frank Vincent, Darryl Wright, Raylene Gordon, Jennifer Bell, Guy Gillor, Julie Booker, Peter Fernando, Deanna Kalucy, Simone Sherriff, Allison Tong, Carmen Parter, Sandra Bailey, Sally Redman, Emily Banks, Jonathan C Craig
OBJECTIVE: To describe and evaluate Hearing EAr health and Language Services (HEALS), a New South Wales (NSW) health initiative implemented in 2013 and 2014 as a model for enhanced clinical services arising from Aboriginal health research. METHODS: A case-study involving a mixed-methods evaluation of the origins and outcomes of HEALS, a collaboration among five NSW Aboriginal Community Controlled Health Services (ACCHS), the Sydney Children's Hospitals Network, NSW Health, the Aboriginal Health and Medical Research Council, and local service providers...
October 23, 2016: Australian and New Zealand Journal of Public Health
Lotte Skøt, Tina Jeppesen, Angelina Isabella Mellentin, Ask Elklit
PURPOSE: This descriptive study sought to explore barriers faced by Deaf and hard-of-hearing (D/HH) individuals in Denmark when accessing medical and psychosocial services following large-scale disasters and individual traumatic experiences. METHODS: Semi-structured interviews were conducted with nine D/HH individuals who had experienced at least one disaster or other traumatic event. RESULTS: Difficulties were encountered during interactions with first response and healthcare services, which centered on: (1) lack of Deaf awareness among professionals, (2) problems accessing interpreter services, (3) professionals relying on hearing relatives to disseminate information, and (4) professionals who were unwilling to adjust their speech or try different forms of communication...
October 17, 2016: Disability and Rehabilitation
Rui Cai, Ben D Richardson, Donald M Caspary
: Human aging studies suggest that an increased use of top-down knowledge-based resources would compensate for degraded upstream acoustic information to accurately identify important temporally rich signals. Sinusoidal amplitude-modulated (SAM) stimuli have been used to mimic the fast-changing temporal features in speech and species-specific vocalizations. Single units were recorded from auditory thalamus [medial geniculate body (MGB)] of young awake, aged awake, young anesthetized, and aged anesthetized rats...
October 12, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Clément François, Toni Cunillera, Enara Garcia, Matti Laine, Antoni Rodriguez-Fornells
Learning a new language requires the identification of word units from continuous speech (the speech segmentation problem) and mapping them onto conceptual representation (the word to world mapping problem). Recent behavioral studies have revealed that the statistical properties found within and across modalities can serve as cues for both processes. However, segmentation and mapping have been largely studied separately, and thus it remains unclear whether both processes can be accomplished at the same time and if they share common neurophysiological features...
October 9, 2016: Neuropsychologia
Rui Yao, ZeQing Zeng, Ping Zhu
A priori signal-to-noise ratio (SNR) estimation and noise estimation are important for speech enhancement. In this paper, a novel modified decision-directed (DD) a priori SNR estimation approach based on single-frequency entropy, named DDBSE, is proposed. DDBSE replaces the fixed weighting factor in the DD approach with an adaptive one calculated according to change of single-frequency entropy. Simultaneously, a new noise power estimation approach based on unbiased minimum mean square error (MMSE) and voice activity detection (VAD), named UMVAD, is proposed...
2016: EURASIP Journal on Advances in Signal Processing
Nicola Strenzke, Rituparna Chakrabarti, Hanan Al-Moyed, Alexandra Müller, Gerhard Hoch, Tina Pangrsic, Gulnara Yamanbaeva, Christof Lenz, Kuan-Ting Pan, Elisabeth Auge, Ruth Geiss-Friedlander, Henning Urlaub, Nils Brose, Carolin Wichmann, Ellen Reisinger
The multi-C2 domain protein otoferlin is required for hearing and mutated in human deafness. Some OTOF mutations cause a mild elevation of auditory thresholds but strong impairment of speech perception. At elevated body temperature, hearing is lost. Mice homozygous for one of these mutations, Otof(I515T/I515T), exhibit a moderate hearing impairment involving enhanced adaptation to continuous or repetitive sound stimulation. In Otof(I515T/I515T) inner hair cells (IHCs), otoferlin levels are diminished by 65%, and synaptic vesicles are enlarged...
October 11, 2016: EMBO Journal
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
Lars Wojtecki, Saskia Elben, Jan Vesper, Alfons Schnitzler
We investigated neurophysiological mechanisms of subthalamic nucleus involvement in verbal fluency by means of a verbal generation task. The subthalamic nucleus is thought to act as a behavioural go/no-go instance by means of oscillatory communication in theta band with the prefrontal cortex. Because subthalamic alpha-theta frequency stimulation has been shown to exert beneficial effects on verbal fluency in Parkinson's disease, we hypothesized that an alpha-theta oscillatory network involving the subthalamic nucleus underlies verbal generation task performance as a gating instance for speech execution...
October 8, 2016: European Journal of Neuroscience
Mabel L Rice
Future perspectives on children with language impairments are framed from what is known about children with specific language impairment (SLI). A summary of the current state of services is followed by discussion of how these children can be overlooked and misunderstood and consideration of why it is so hard for some children to acquire language when it is effortless for most children. Genetic influences are highlighted, with the suggestion that nature plus nurture should be considered in present as well as future intervention approaches...
November 2016: Seminars in Speech and Language
Raphael Koning, Jan Wouters
Speech perception by cochlear implant (CI) users can be very good in quiet but their speech intelligibility (SI) performance decreases in noisy environments. Because recent studies have shown that transient parts of the speech envelope are most important for SI in normal-hearing (NH) listeners, the enhanced envelope (EE) strategy was developed to emphasize onset cues of the speech envelope in the CI signal processing chain. The influence of enhancement of the onsets of the speech envelope on SI was investigated with CI users for speech in stationary speech-shaped noise (SSN) and with an interfering talker...
September 30, 2016: Hearing Research
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
Ana Guinote
Sociocognitive research has demonstrated that power affects how people feel, think, and act. In this article, I review literature from social psychology, neuroscience, management, and animal research and propose an integrated framework of power as an intensifier of goal-related approach motivation. A growing literature shows that power energizes thought, speech, and action and orients individuals toward salient goals linked to power roles, predispositions, tasks, and opportunities. Power magnifies self-expression linked to active parts of the self (the active self ), enhancing confidence, self-regulation, and prioritization of efforts toward advancing focal goals...
September 21, 2016: Annual Review of Psychology
Josephine Ross, Alissa Melinger
When bilinguals speak, both fluent language systems become activated in parallel and exert an influence on speech production. As a consequence of maintaining separation between the two linguistic systems, bilinguals are purported to develop enhanced executive control functioning. Like bilinguals, individuals who speak two dialects must also maintain separation between two linguistic systems, albeit to a lesser degree. Across three tests of executive function, we compared bilingual and bidialectal children's performance to that of a monolingual control group...
September 29, 2016: Developmental Science
Marie Orentin, Victorine Quintaine, Alain Yelnik, Marylène Jousse, Leila Tlili, Anna Bernard, Maryse Guillemette
OBJECTIVE: Music therapy enhances awareness of sound perception and musical sensorial experience often highly impaired following a stroke, confirmed by music's neurosciences. The study aims to verify its reception and utility in a Physical Medicine and Rehabilitation (PMR) service with professional team and patients. MATERIAL/PATIENTS AND METHODS: Eleven hospitalized patients were included after stoke (without regular instrumental practice, speech disorder, severe hearing loss nor psychiatric history)...
September 2016: Annals of Physical and Rehabilitation Medicine
Theresa H Brunner, Kristyn DiFortuna Kristyn DiFortuna, Michael LeTang Michael LeTang, Jane Murphy, Kara Stemplewicz, Magda Kovacs Magda Kovacs, Antonio P P DeRosa, Donna S Gibson, Pamela K Ginex
For patients with head and neck cancer, altered communication is a frequently occurring and highly upsetting issue that has been associated with psychological distress, fear, and anger among those with temporary or permanent speech impairment postsurgery. Many postoperative patients express that the most terrifying situation is to wake up from surgery and not be able to speak. Mobile devices have become part of everyday life, and augmentative and alternative communication mobile applications have the potential to enhance the healthcare journey of the patient and provider...
October 1, 2016: Clinical Journal of Oncology Nursing
Bettina Sorger, Tabea Kamp, Nikolaus Weiskopf, Judith Caroline Peters, Rainer Goebel
Brain-computer interfaces (BCIs) based on real-time functional magnetic resonance imaging (rtfMRI) are currently explored in the context of developing alternative (motor-independent) communication and control means for the severely disabled. In such BCI systems, the user encodes a particular intention (e.g., an answer to a question or an intended action) by evoking specific mental activity resulting in a distinct brain state that can be decoded from fMRI activation. One goal in this context is to increase the degrees of freedom in encoding different intentions, i...
September 19, 2016: Neuroscience
R Darkow, A Flöel
Speech and language therapy is essential in the rehabilitation of aphasic disorders following a stroke. Due to the predicted increase of aphasia and limited resources within the healthcare system, the development of efficient and sustainable treatment methods is of exceptional importance. The effectiveness of both traditional and innovative approaches needs to be evaluated against the standards of evidence-based medicine. Class I evidence has been established for high-intensity speech and language therapy in subacute and chronic stages of aphasia...
October 2016: Der Nervenarzt
Zheng Ye, Arjen Stolk, Ivan Toni, Peter Hagoort
Listeners interpret utterances by integrating information from multiple sources including word level semantics and world knowledge. When the semantics of an expression is inconsistent with his or her knowledge about the world, the listener may have to search through the conceptual space for alternative possible world scenarios that can make the expression more acceptable. Such cognitive exploration requires considerable computational resources and might depend on motivational factors. This study explores whether and how oxytocin, a neuropeptide known to influence social motivation by reducing social anxiety and enhancing affiliative tendencies, can modulate the integration of world knowledge and sentence meanings...
September 20, 2016: Journal of Cognitive Neuroscience
Ashley L Dockens, Monica L Bellon-Harn, Vinaya Manchaiah
BACKGROUND AND OBJECTIVES: Patient-centeredness is a critical approach to rehabilitation in allied health professions and is an imperative component of evidence-based practice. However, it is unknown if patient-centeredness is valued by students enrolled in allied health. This study was aimed at determining preferences to patient-centeredness in pre-service speech and hearing students in the field of speech and hearing sciences. SUBJECTS AND METHODS: Pre-service speech and hearing students (n=93) completed the Patient-Practitioner Orientation Scale (PPOS) and were grouped according to low, medium, or high exposure to curriculum content...
September 2016: Journal of Audiology & Otology
Charlotta Plejert, Christina Samuelsson, Jan Anward
The present article is a case study in which participation is investigated in terms of the use of interactional practices that enhance the involvement of a man with severe aphasia in activities that aim to capture his and his wife's experiences of everyday communication, and their views of his speech and language intervention. Five practices are identified: 1) collaborative telling, 2) formulations, 3) yes/no questions, 4) declaratives and 5) hint-and-guess strategies. It is demonstrated how participants' (wife, a speech and language pathologist, and two research assistants) use of these practices are beneficial for making the viewpoints of the man with aphasia come across, despite his communication difficulties...
September 13, 2016: Clinical Linguistics & Phonetics
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"