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https://www.readbyqxmd.com/read/28210185/neoplastic-leptomeningeal-disease-masquerading-as-central-serous-retinopathy-a-case-report
#1
Ibrahim Elaraoud, Hanif J Suleman, Peter Cikatricis, Helen Palmer
A 69-year-old man became aware of people's speech being out of synch with their lip movements alongside persistent headaches, both of which progressively worsened. A few weeks later, he developed progressive and painless visual loss in one eye. Initial neurological evaluation, inflammatory markers and head computed tomography scan were normal. Ophthalmological examination and OCT scan revealed right macular subretinal fluid with choroidal indentation, which prompted urgent further investigations including head MRI revealing extensive leptomeningeal disease...
July 2016: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28203630/gesture-enhances-learning-of-a-complex-statistical-concept
#2
Linda Rueckert, Ruth Breckinridge Church, Andrea Avila, Theresa Trejo
Prior research has shown that gestures that co-occur with speech can improve understanding of abstract concepts by embodying the underlying meaning of those concepts, thereby making them more accessible to the listener. The present study examined the effect of gesture on undergraduate students' learning of a complex statistical concept (analysis of variance; ANOVA). Students in three classes watched a brief video in which the speaker explained the conceptual background of ANOVA while using gesture and students in three other classes saw a similar video with the same speech, but no gesture...
2017: Cogn Res Princ Implic
https://www.readbyqxmd.com/read/28187128/neural-mechanisms-of-rhythm-based-temporal-prediction-delta-phase-locking-reflects-temporal-predictability-but-not-rhythmic-entrainment
#3
Assaf Breska, Leon Y Deouell
Predicting the timing of upcoming events enables efficient resource allocation and action preparation. Rhythmic streams, such as music, speech, and biological motion, constitute a pervasive source for temporal predictions. Widely accepted entrainment theories postulate that rhythm-based predictions are mediated by synchronizing low-frequency neural oscillations to the rhythm, as indicated by increased phase concentration (PC) of low-frequency neural activity for rhythmic compared to random streams. However, we show here that PC enhancement in scalp recordings is not specific to rhythms but is observed to the same extent in less periodic streams if they enable memory-based prediction...
February 2017: PLoS Biology
https://www.readbyqxmd.com/read/28177157/variations-on-the-theme-of-musical-expertise-cognitive-and-sensory-processing-in-percussionists-vocalists-and-non-musicians
#4
Jessica Slater, Andrea Azem, Trent Nicol, Britta Swedenborg, Nina Kraus
Comparisons of musicians and non-musicians have revealed enhanced cognitive and sensory processing in musicians, with longitudinal studies suggesting these enhancements may be due in part to experience-based plasticity. Here, we investigate the impact of primary instrument on the musician signature of expertise by assessing three groups of young adults: percussionists, vocalists, and non-musician controls. We hypothesize that primary instrument engenders selective enhancements reflecting the most salient acoustic features to that instrument, whereas cognitive functions are enhanced regardless of instrument...
February 8, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28169421/n1-response-attenuation-and-the-mismatch-negativity-mmn-to-within-and-across-category-phonetic-contrasts
#5
Daniel M R Silva, Danilo B Melges, Rui Rothe-Neves
According to the neural adaptation model of the mismatch negativity (MMN), the sensitivity of this event-related response to both acoustic and categorical information in speech sounds can be accounted for by assuming that (a) the degree of overlapping between neural representations of two sounds depends on both the acoustic difference between them and whether or not they belong to distinct phonetic categories, and (b) a release from stimulus-specific adaptation causes an enhanced N1 obligatory response to infrequent deviant stimuli...
February 7, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28153014/towards-best-practice-in-acute-stroke-care-in-ghana-a-survey-of-hospital-services
#6
Leonard Baatiema, Michael Otim, George Mnatzaganian, Ama De-Graft Aikins, Judith Coombes, Shawn Somerset
BACKGROUND: Stroke and other non-communicable diseases are important emerging public health concerns in sub-Saharan Africa where stroke-related mortality and morbidity are higher compared to other parts of the world. Despite the availability of evidence-based acute stroke interventions globally, uptake in low-middle income countries (LMIC) such as Ghana is uncertain. This study aimed to identify and evaluate available acute stroke services in Ghana and the extent to which these services align with global best practice...
February 2, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28147616/evaluation-of-near-end-speech-enhancement-under-equal-loudness-constraint-for-listeners-with-normal-hearing-and-mild-to-moderate-hearing-loss
#7
Tudor-Cătălin Zorilă, Yannis Stylianou, Sheila Flanagan, Brian C J Moore
Four algorithms designed to enhance the intelligibility of speech when noise is added after processing were evaluated under the constraint that the speech should have the same loudness before and after processing, as determined using a loudness model. The algorithms applied spectral modifications and two of them included dynamic-range compression. On average, the methods with dynamic-range compression required the least level adjustment to equate loudness for the unprocessed and processed speech. Subjects with normal-hearing (experiment 1) and mild-to-moderate hearing loss (experiment 2) were tested using unmodified and enhanced speech presented in speech-shaped noise (SSN) and a competing speaker (CS)...
January 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28131520/temporal-plasticity-in-auditory-cortex-improves-neural-discrimination-of-speech-sounds
#8
Crystal T Engineer, Jai A Shetake, Navzer D Engineer, Will A Vrana, Jordan T Wolf, Michael P Kilgard
BACKGROUND: Many individuals with language learning impairments exhibit temporal processing deficits and degraded neural responses to speech sounds. Auditory training can improve both the neural and behavioral deficits, though significant deficits remain. Recent evidence suggests that vagus nerve stimulation (VNS) paired with rehabilitative therapies enhances both cortical plasticity and recovery of normal function. OBJECTIVE/HYPOTHESIS: We predicted that pairing VNS with rapid tone trains would enhance the primary auditory cortex (A1) response to unpaired novel speech sounds...
January 11, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28130910/auditory-and-audio-visual-processing-in-patients-with-cochlear-auditory-brainstem-and-auditory-midbrain-implants-an-eeg-study
#9
Irina Schierholz, Mareike Finke, Andrej Kral, Andreas Büchner, Stefan Rach, Thomas Lenarz, Reinhard Dengler, Pascale Sandmann
There is substantial variability in speech recognition ability across patients with cochlear implants (CIs), auditory brainstem implants (ABIs), and auditory midbrain implants (AMIs). To better understand how this variability is related to central processing differences, the current electroencephalography (EEG) study compared hearing abilities and auditory-cortex activation in patients with electrical stimulation at different sites of the auditory pathway. Three different groups of patients with auditory implants (Hannover Medical School; ABI: n = 6, CI: n = 6; AMI: n = 2) performed a speeded response task and a speech recognition test with auditory, visual, and audio-visual stimuli...
January 28, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28129169/semantic-entity-component-state-management-techniques-to-enhance-software-quality-for-multimodal-vr-systems
#10
Martin Fischbach, Dennis Wiebusch, Marc Erich Latoschik
Modularity, modifiability, reusability, and API usability are important software qualities that determine the maintainability of software architectures. Virtual, Augmented, and Mixed Reality (VR, AR, MR) systems, modern computer games, as well as interactive human-robot systems often include various dedicated input-, output-, and processing subsystems. These subsystems collectively maintain a real-time simulation of a coherent application state. The resulting interdependencies between individual state representations, mutual state access, overall synchronization, and flow of control implies a conceptual close coupling whereas software quality asks for a decoupling to develop maintainable solutions...
January 23, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28127435/dementia-gait-disturbance-and-urinary-incontinence-in-a-patient-with-pulmonary-sarcoidosis
#11
Gonzalo Labarca, Romina Ramirez, Ximena Monsalve, Isabel Mira-Avendano
Hydrocephalus is an uncommon presentation of neurosarcoidosis. We discuss the case of a 67-year-old woman with a prior diagnosis of hypothyroidism, systemic hypertension, and lung sarcoidosis who presented with a 1-month history of progressive impairment of consciousness leading to prostration and loss of sphincter control. At admission, patient was febrile with altered speech and without focalization. Laboratory results showed leucocytosis and mild anaemia. Cerebrospinal fluid (CSF) analysis was characterized by mild elevated protein level, increased cell count, normal glucose and adenosine deaminase (ADA), negative cytology, and no bacterial isolations...
September 2016: Respirology Case Reports
https://www.readbyqxmd.com/read/28109492/audiovisual-materials-are-effective-for-enhancing-the-correction-of-articulation-disorders-in-children-with-cleft-palate
#12
María Del Carmen Pamplona, Pablo Antonio Ysunza, Santiago Morales
INTRODUCTION: Children with cleft palate frequently show speech disorders known as compensatory articulation. Compensatory articulation requires a prolonged period of speech intervention that should include reinforcement at home. However, frequently relatives do not know how to work with their children at home. OBJECTIVE: To study whether the use of audiovisual materials especially designed for complementing speech pathology treatment in children with compensatory articulation can be effective for stimulating articulation practice at home and consequently enhancing speech normalization in children with cleft palate...
February 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28101650/speech-disorders-in-parkinson-s-disease-early-diagnostics-and-effects-of-medication-and-brain-stimulation
#13
REVIEW
L Brabenec, J Mekyska, Z Galaz, Irena Rektorova
Hypokinetic dysarthria (HD) occurs in 90% of Parkinson's disease (PD) patients. It manifests specifically in the areas of articulation, phonation, prosody, speech fluency, and faciokinesis. We aimed to systematically review papers on HD in PD with a special focus on (1) early PD diagnosis and monitoring of the disease progression using acoustic voice and speech analysis, and (2) functional imaging studies exploring neural correlates of HD in PD, and (3) clinical studies using acoustic analysis to evaluate effects of dopaminergic medication and brain stimulation...
January 18, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28094647/using-drawings-as-a-reflective-tool-to-enhance-communication-in-dementia-care
#14
Phil McEvoy, Sue Bellass
Communication skills training can be a valuable means of supporting professional and family carers of people with dementia. Most communication skills training programmes for those caring for people with dementia focus on dementia awareness and the technical aspects of communication, such as the pace and volume of the carer's speech. However, it is also important to examine what is conveyed about a carer's internal experience in their non-verbal interactions with people living with dementia. This article explores how drawings can be used to help carers to reflect on what is communicated and question any hidden assumptions...
January 4, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28093574/an-acoustically-driven-vocal-tract-model-for-stop-consonant-production
#15
Brad H Story, Kate Bunton
The purpose of this study was to further develop a multi-tier model of the vocal tract area function in which the modulations of shape to produce speech are generated by the product of a vowel substrate and a consonant superposition function. The new approach consists of specifying input parameters for a target consonant as a set of directional changes in the resonance frequencies of the vowel substrate. Using calculations of acoustic sensitivity functions, these "resonance deflection patterns" are transformed into time-varying deformations of the vocal tract shape without any direct specification of location or extent of the consonant constriction along the vocal tract...
March 2017: Speech Communication
https://www.readbyqxmd.com/read/28089707/understanding-infant-eating-behaviour-lessons-learned-from-observation
#16
REVIEW
Marion M Hetherington
Observations of human infants during feeding presents a rich source of data to identify the ways in which hunger, appetite and satiety are communicated in early life. Infants signal appetite through their interest or disinterest in food using a series of communication cues from rapid and transient facial expressions to subtle or potent gestures and bodily movements through to vocalisations and eventually speech. Even in the first days of life facial expressions in response to basic tastes are clearly demonstrated and shared between human infants, other primates and the rat...
January 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28080121/hand-matters-left-hand-gestures-enhance-metaphor-explanation
#17
Paraskevi Argyriou, Christine Mohr, Sotaro Kita
Research suggests that speech-accompanying gestures influence cognitive processes, but it is not clear whether the gestural benefit is specific to the gesturing hand. Two experiments tested the "(right/left) hand-specificity" hypothesis for self-oriented functions of gestures: gestures with a particular hand enhance cognitive processes involving the hemisphere contralateral to the gesturing hand. Specifically, we tested whether left-hand gestures enhance metaphor explanation, which involves right-hemispheric processing...
January 12, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/28078408/-rehabilitation-in-children-and-adults-an-overview
#18
A Illg
BACKGROUND: The rehabilitation of patients with hearing loss includes technical, medical, and therapeutic education interventions. The success of cochlear implant (CI) treatment depends on joint coordination and execution of all measures. During the history of CI, expansion of the spectrum of indication criteria has led to evolution of auditory-verbal therapy, speech therapy, and auditory training. MATERIALS AND METHODS: This paper describes the current status of therapeutic knowledge and experience of hearing and speech therapeutic rehabilitation in children and adults...
January 11, 2017: HNO
https://www.readbyqxmd.com/read/28077883/performance-pressure-enhances-speech-learning
#19
W Todd Maddox, Seth Koslov, Han-Gyol Yi, Bharath Chandrasekaran
Real-world speech learning often occurs in high pressure situations such as trying to communicate in a foreign country. However, the impact of pressure on speech learning success is largely unexplored. In this study, adult, native speakers of English learned non-native speech categories under pressure or no-pressure conditions. In the pressure conditions, participants were informed that they were paired with a (fictitious) partner, and that each had to independently exceed a performance criterion for both to receive a monetary bonus...
November 2016: Applied Psycholinguistics
https://www.readbyqxmd.com/read/28077662/stability-and-plasticity-in-neural-encoding-of-linguistically-relevant-pitch-patterns
#20
Zilong Xie, Rachel Reetzke, Bharath Chandrasekaran
While life-long language experience modulates subcortical encoding of pitch patterns, there is emerging evidence that short-term training introduced in adulthood also shapes subcortical pitch encoding. Here, we use a cross-language design to examine the stability of language experience-dependent subcortical plasticity over multiple days. We then examine the extent to which behavioral relevance induced by speech sound-to-category training leads to plastic changes in subcortical pitch encoding in adulthood relative to adolescence, a period of ongoing maturation of subcortical and cortical auditory processing...
January 11, 2017: Journal of Neurophysiology
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