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Auditory gap detection

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https://www.readbyqxmd.com/read/29436853/electrophysiological-response-during-auditory-gap-detection-biomarker-for-sensory-and-communication-alterations-in-autism-spectrum-disorder
#1
Jennifer H Foss-Feig, Katherine K M Stavropoulos, James C McPartland, Mark T Wallace, Wendy L Stone, Alexandra P Key
Sensory symptoms, including auditory processing deficits, are common in autism spectrum disorder (ASD). Processing of temporal aspects of auditory input is understudied; yet, deficits in this domain could contribute to language-related impairments. In children with ASD and well-matched controls, this study examined electrophysiological response to silent gaps in auditory stimuli. Results revealed attenuated amplitude of the P2 event-related potential (ERP) component in ASD. The P2 amplitude reduction was also associated with sensory, language, and diagnostic features...
2018: Developmental Neuropsychology
https://www.readbyqxmd.com/read/29379574/speech-evoked-brainstem-auditory-responses-and-auditory-processing-skills-a-correlation-in-adults-with-hearing-loss
#2
Taissane Rodrigues Sanguebuche, Bruna Pias Peixe, Rúbia Soares Bruno, Eliara Pinto Vieira Biaggio, Michele Vargas Garcia
Introduction  The auditory system consists of sensory structures and central connections. The evaluation of the auditory pathway at a central level can be performed through behavioral and electrophysiological tests, because they are complementary to each other and provide important information about comprehension. Objective  To correlate the findings of speech brainstem-evoked response audiometry with the behavioral tests Random Gap Detection Test and Masking Level Difference in adults with hearing loss...
January 2018: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/29287884/effects-of-transient-auditory-deprivation-during-critical-periods-on-the-development-of-auditory-temporal-processing
#3
Bong Jik Kim, Jungyoon Kim, Il-Yong Park, Jae Yun Jung, Myung-Whan Suh, Seung-Ha Oh
OBJECTIVES: The central auditory pathway matures through sensory experiences and it is known that sensory experiences during periods called critical periods exert an important influence on brain development. The present study aimed to investigate whether temporary auditory deprivation during critical periods (CPs) could have a detrimental effect on the development of auditory temporal processing. MATERIALS AND METHODS: Twelve neonatal rats were randomly assigned to control and study groups; Study group experienced temporary (18-20 days) auditory deprivation during CPs (Early deprivation study group)...
January 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29191772/gap-induced-reductions-of-evoked-potentials-in-the-auditory-cortex-a-possible-objective-marker-for-the-presence-of-tinnitus
#4
Joel I Berger, William Owen, Caroline A Wilson, Adam Hockley, Ben Coomber, Alan R Palmer, Mark N Wallace
Animal models of tinnitus are essential for determining the underlying mechanisms and testing pharmacotherapies. However, there is doubt over the validity of current behavioural methods for detecting tinnitus. Here, we applied a stimulus paradigm widely used in a behavioural test (gap-induced inhibition of the acoustic startle reflex GPIAS) while recording from the auditory cortex, and showed neural response changes that mirror those found in the behavioural tests. We implanted guinea pigs (GPs) with electrocorticographic (ECoG) arrays and recorded baseline auditory cortical responses to a startling stimulus...
November 27, 2017: Brain Research
https://www.readbyqxmd.com/read/29186146/auditory-and-cognitive-performance-in-elderly-musicians-and-nonmusicians
#5
Massimo Grassi, Chiara Meneghetti, Enrico Toffalini, Erika Borella
Musicians represent a model for examining brain and behavioral plasticity in terms of cognitive and auditory profile, but few studies have investigated whether elderly musicians have better auditory and cognitive abilities than nonmusicians. The aim of the present study was to examine whether being a professional musician attenuates the normal age-related changes in hearing and cognition. Elderly musicians still active in their profession were compared with nonmusicians on auditory performance (absolute threshold, frequency intensity, duration and spectral shape discrimination, gap and sinusoidal amplitude-modulation detection), and on simple (short-term memory) and more complex and higher-order (working memory [WM] and visuospatial abilities) cognitive tasks...
2017: PloS One
https://www.readbyqxmd.com/read/29170070/dynamic-phase-alignment-of-ongoing-auditory-cortex-oscillations
#6
Anna-Katharina R Bauer, Martin G Bleichner, Manuela Jaeger, Jeremy D Thorne, Stefan Debener
Neural oscillations can synchronize to external rhythmic stimuli, as for example in speech and music. While previous studies have mainly focused on elucidating the fundamental concept of neural entrainment, less is known about the time course of entrainment. In this human electroencephalography (EEG) study, we unravel the temporal evolution of neural entrainment by contrasting short and long periods of rhythmic stimulation. Listeners had to detect short silent gaps that were systematically distributed with respect to the phase of a 3 Hz frequency-modulated tone...
November 20, 2017: NeuroImage
https://www.readbyqxmd.com/read/29120216/bridging-the-gap-learning-of-acoustic-nonadjacent-dependencies-by-a-songbird
#7
Jiani Chen, Carel Ten Cate
Many animal species can detect dependencies between adjacent visual or auditory items in a string. Compared with adjacent dependencies, detecting nonadjacent dependencies, as present in linguistic constructions, is more challenging as this requires detecting a relation between items irrespective of the number and nature of the intervening items. There is limited evidence that nonhuman animals can detect such dependencies. An animal group in which such abilities might be expected is songbirds, which have learned songs consisting of a series of vocal elements given in specific sequences...
July 2017: Journal of Experimental Psychology. Animal Learning and Cognition
https://www.readbyqxmd.com/read/29079460/optimized-auditory-transcranial-alternating-current-stimulation-improves-individual-auditory-temporal-resolution
#8
Alina Baltus, Sven Wagner, Carsten Hermann Wolters, Christoph Siegfried Herrmann
BACKGROUND: Temporal resolution of cortical, auditory processing mechanisms is suggested to be linked to peak frequency of neuronal gamma oscillations in auditory cortex areas (individual gamma frequency, IGF): Individuals with higher IGF tend to have better temporal resolution. HYPOTHESIS: Modulating ongoing gamma activity with transcranial alternating current stimulation (tACS) is expected to improve performance in gap detection (GD) tasks (shorter GD thresholds) if the frequency is higher and to decrease GD performance (longer GD thresholds) if the frequency is lower than IGF...
October 17, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29060199/neural-decoding-of-attentional-selection-in-multi-speaker-environments-without-access-to-separated-sources
#9
James O'Sullivan, Zhuo Chen, Sameer A Sheth, Guy McKhann, Ashesh D Mehta, Nima Mesgarani
People who suffer from hearing impairments can find it difficult to follow a conversation in a multi-speaker environment. Modern hearing aids can suppress background noise; however, there is little that can be done to help a user attend to a single conversation without knowing which speaker is being attended to. Cognitively controlled hearing aids that use auditory attention decoding (AAD) methods are the next step in offering help. A number of challenges exist, including the lack of access to the clean sound sources in the environment with which to compare with the neural signals...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29045729/knockout-mice-for-dyslexia-susceptibility-gene-homologs-kiaa0319-and-kiaa0319l-have-unaffected-neuronal-migration-but-display-abnormal-auditory-processing
#10
Luiz G Guidi, Jane Mattley, Isabel Martinez-Garay, Anthony P Monaco, Jennifer F Linden, Antonio Velayos-Baeza, Zoltán Molnár
Developmental dyslexia is a neurodevelopmental disorder that affects reading ability caused by genetic and non-genetic factors. Amongst the susceptibility genes identified to date, KIAA0319 is a prime candidate. RNA-interference experiments in rats suggested its involvement in cortical migration but we could not confirm these findings in Kiaa0319-mutant mice. Given its homologous gene Kiaa0319L (AU040320) has also been proposed to play a role in neuronal migration, we interrogated whether absence of AU040320 alone or together with KIAA0319 affects migration in the developing brain...
December 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28968281/the-electrically-evoked-auditory-change-complex-evoked-by-temporal-gaps-using-cochlear-implants-or-auditory-brainstem-implants-in-children-with-cochlear-nerve-deficiency
#11
Shuman He, Tyler C McFayden, Bahar S Shahsavarani, Holly F B Teagle, Matthew Ewend, Lillian Henderson, Craig A Buchman
OBJECTIVES: This study aimed to (1) establish the feasibility of measuring the electrically evoked auditory change complex (eACC) in response to temporal gaps in children with cochlear nerve deficiency (CND) who are using cochlear implants (CIs) and/or auditory brainstem implants (ABIs); and (2) explore the association between neural encoding of, and perceptual sensitivity to, temporal gaps in these patients. DESIGN: Study participants included 5 children (S1 to S5) ranging in age from 3...
September 29, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28942322/adaptation-facilitates-spatial-discrimination-for-deviant-locations-in-the-thalamic-reticular-nucleus-of-the-rat
#12
Xin-Xiu Xu, Yu-Ying Zhai, Xiao-Kai Kou, Xiongjie Yu
The capacity to identify unanticipated abnormal cues in a natural scene is vital for animal survival. Stimulus-specific adaptation (SSA) has been considered the neuronal correlate for deviance detection. There have been comprehensive assessments of SSA in the frequency domain along the ascending auditory pathway, but only little attention given to deviance detection in the spatial domain. We found that thalamic reticular nucleus (TRN) neurons exhibited stronger responses to a tone when it was presented rarely as opposed to frequently at a certain spatial location...
December 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/28936137/age-related-changes-in-auditory-processing-and-speech-perception-cross-sectional-and-longitudinal-analyses
#13
Harvey Babkoff, Leah Fostick
Age-related differences in speech perception have been shown in previous cross-sectional studies to be related to auditory temporal processing. We examined this association in both cross-sectional and longitudinal designs, controlling for age-related changes in hearing sensitivity and cognitive ability. Fifty-eight participants were tested in two phases. In phase 1, ages ranged between 22 and 82 years. Phase 2 occurred seven years later. In both phases, participants performed auditory processing tasks, speech perception tests, and cognitive tasks...
September 2017: European Journal of Ageing
https://www.readbyqxmd.com/read/28925013/an-animal-model-of-deep-brain-stimulation-for-treating-tinnitus-a-proof-of-concept-study
#14
Syed F Ahsan, Hao Luo, Jinsheng Zhang, Eric Kim, Yong Xu
OBJECTIVE: This proof-of-concept study aimed to demonstrate therapeutic effects of deep brain stimulation (DBS) on noise-induced tinnitus. STUDY DESIGN: Experimental animal study. METHODS: After Institutional Animal Care and Use Committee approval, nine adult rats were implanted in the caudate nucleus with custom-made electrode array. The rats were exposed to noise to induce tinnitus. Auditory brainstem response was performed to evaluate hearing threshold changes...
September 19, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28867348/cellular-computations-underlying-detection-of-gaps-in-sounds-and-lateralizing-sound-sources
#15
REVIEW
Donata Oertel, Xiao-Jie Cao, James R Ison, Paul D Allen
In mammals, acoustic information arises in the cochlea and is transmitted to the ventral cochlear nuclei (VCN). Three groups of VCN neurons extract different features from the firing of auditory nerve fibers and convey that information along separate pathways through the brainstem. Two of these pathways process temporal information: octopus cells detect coincident firing among auditory nerve fibers and transmit signals along monaural pathways, and bushy cells sharpen the encoding of fine structure and feed binaural pathways...
October 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28816204/deep-band-modulated-phrase-perception-in-quiet-and-noise-in-individuals-with-auditory-neuropathy-spectrum-disorder-and-sensorineural-hearing-loss
#16
Hemanth Narayan Shetty, Vishal Kooknoor
CONTEXT: Deep band modulation (DBM) improves speech perception in individuals with learning disability and older adults, who had temporal impairment in them. However, it is unclear on perception of DBM phrases at quiet and noise conditions in individuals with auditory neuropathy spectrum disorder (ANSD) and sensorineural hearing loss (SNHL), as these individuals suffer from temporal impairment. AIM: The aim is to study the effect of DBM and noise on phrase perception in individuals with normal hearing, SNHL, and ANSD...
July 2017: Noise & Health
https://www.readbyqxmd.com/read/28716582/a-probabilistic-poisson-based-model-accounts-for-an-extensive-set-of-absolute-auditory-threshold-measurements
#17
Peter Heil, Artur Matysiak, Heinrich Neubauer
Thresholds for detecting sounds in quiet decrease with increasing sound duration in every species studied. The neural mechanisms underlying this trade-off, often referred to as temporal integration, are not fully understood. Here, we probe the human auditory system with a large set of tone stimuli differing in duration, shape of the temporal amplitude envelope, duration of silent gaps between bursts, and frequency. Duration was varied by varying the plateau duration of plateau-burst (PB) stimuli, the duration of the onsets and offsets of onset-offset (OO) stimuli, and the number of identical bursts of multiple-burst (MB) stimuli...
June 27, 2017: Hearing Research
https://www.readbyqxmd.com/read/28706081/brief-stimulus-exposure-fully-remediates-temporal-processing-deficits-induced-by-early-hearing-loss
#18
David B Green, Michelle M Mattingly, Yi Ye, Jennifer D Gay, Merri J Rosen
In childhood, partial hearing loss can produce prolonged deficits in speech perception and temporal processing. However, early therapeutic interventions targeting temporal processing may improve later speech-related outcomes. Gap detection is a measure of auditory temporal resolution that relies on the auditory cortex (ACx), and early auditory deprivation alters intrinsic and synaptic properties in the ACx. Thus, early deprivation should induce deficits in gap detection, which should be reflected in ACx gap sensitivity...
August 9, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28704894/factors-affecting-sentence-in-noise-recognition-for-normal-hearing-listeners-and-listeners-with-hearing-loss
#19
Jung Sun Hwang, Kyung Hyun Kim, Jae Hee Lee
BACKGROUND AND OBJECTIVES: Despite amplified speech, listeners with hearing loss often report more difficulties understanding speech in background noise compared to normalhearing listeners. Various factors such as deteriorated hearing sensitivity, age, suprathreshold temporal resolution, and reduced capacity of working memory and attention can attribute to their sentence-in-noise problems. The present study aims to determine a primary explanatory factor for sentence-in-noise recognition difficulties in adults with or without hearing loss...
July 2017: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/28687812/blast-induced-tinnitus-and-elevated-central-auditory-and-limbic-activity-in-rats-a-manganese-enhanced-mri-and-behavioral-study
#20
Jessica Ouyang, Edward Pace, Laura Lepczyk, Michael Kaufman, Jessica Zhang, Shane A Perrine, Jinsheng Zhang
Blast-induced tinitus is the number one service-connected disability that currently affects military personnel and veterans. To elucidate its underlying mechanisms, we subjected 13 Sprague Dawley adult rats to unilateral 14 psi blast exposure to induce tinnitus and measured auditory and limbic brain activity using manganese-enhanced MRI (MEMRI). Tinnitus was evaluated with a gap detection acoustic startle reflex paradigm, while hearing status was assessed with prepulse inhibition (PPI) and auditory brainstem responses (ABRs)...
July 7, 2017: Scientific Reports
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