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Auditory Processing

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https://www.readbyqxmd.com/read/28088063/verbal-and-musical-short-term-memory-variety-of-auditory-disorders-after-stroke
#1
Catherine Hirel, Norbert Nighoghossian, Yohana Lévêque, Salem Hannoun, Lesly Fornoni, Sébastien Daligault, Patrick Bouchet, Julien Jung, Barbara Tillmann, Anne Caclin
Auditory cognitive deficits after stroke may concern language and/or music processing, resulting in aphasia and/or amusia. The aim of the present study was to assess the potential deficits of auditory short-term memory for verbal and musical material after stroke and their underlying cerebral correlates with a Voxel-based Lesion Symptom Mapping approach (VLSM). Patients with an ischemic stroke in the right (N=10) or left (N=10) middle cerebral artery territory and matched control participants (N=14) were tested with a detailed neuropsychological assessment including global cognitive functions, music perception and language tasks...
January 11, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28088039/read-my-lips-visual-speech-influences-word-processing-in-infants
#2
Drew Weatherhead, Katherine S White
What do infants hear when they read lips? In the present study, twelve-to-thirteen-month-old infants viewed a talking face produce familiar and unfamiliar words. The familiar words were of three types: in Experiment 1, they were produced correctly (e.g., "bottle"); in Experiment 2, infants saw and heard mispronunciations in which the altered phoneme either visually resembled the original phoneme (visually consistent, e.g. "pottle"), or did not visually resemble the original phoneme (visually inconsistent, e...
January 11, 2017: Cognition
https://www.readbyqxmd.com/read/28087419/cochlear-synaptopathy-in-acquired-sensorineural-hearing-loss-manifestations-and-mechanisms
#3
REVIEW
M Charles Liberman, Sharon G Kujawa
Common causes of hearing loss in humans - exposure to loud noise or ototoxic drugs and aging - often damage sensory hair cells, reflected as elevated thresholds on the clinical audiogram. Recent studies in animal models suggest, however, that well before this overt hearing loss can be seen, a more insidious, but likely more common, process is taking place that permanently interrupts synaptic communication between sensory inner hair cells and subsets of cochlear nerve fibers. The silencing of affected neurons alters auditory information processing, whether accompanied by threshold elevations or not, and is a likely contributor to a variety of perceptual abnormalities, including speech-in-noise difficulties, tinnitus and hyperacusis...
January 10, 2017: Hearing Research
https://www.readbyqxmd.com/read/28087418/degeneration-of-auditory-nerve-fibers-in-guinea-pigs-with-severe-sensorineural-hearing-loss
#4
Steven Kroon, Dyan Ramekers, Emma M Smeets, Ferry G J Hendriksen, Sjaak F L Klis, Huib Versnel
Damage to and loss of the organ of Corti leads to secondary degeneration of the spiral ganglion cell (SGC) somata of the auditory nerve. Extensively examined in animal models, this degeneration process of SGC somata following deafening is well known. However, degeneration of auditory nerve axons, which conduct auditory information towards the brainstem, and its relation to SGC soma degeneration are largely unknown. The consequences of degeneration of the axons are relevant for cochlear implantation, which is applied to a deafened system but depends on the condition of the auditory nerve...
January 10, 2017: Hearing Research
https://www.readbyqxmd.com/read/28087338/auditory-hindbrain-atrophy-and-anomalous-calcium-binding-protein-expression-after-neonatal-exposure-to-monosodium-glutamate
#5
Lindsey Foran, Kaitlyn Blackburn, Randy J Kulesza
Glutamate is the most abundant excitatory neurotransmitter in the central nervous system, and is stored and released by both neurons and astrocytes. Despite the important role of glutamate as a neurotransmitter, elevated extracellular glutamate can result in excitotoxicity and apoptosis. Monosodium glutamate (MSG) is a naturally occurring sodium salt of glutamic acid that is used as a flavor enhancer in many processed foods. Previous studies have shown that MSG administration during the early postnatal period results in neurodegenerative changes in several forebrain regions, characterized by neuronal loss and neuroendocrine abnormalities...
January 10, 2017: Neuroscience
https://www.readbyqxmd.com/read/28081534/enhanced-auditory-sensitivity-to-body-vibrations-in-superior-canal-dehiscence-syndrome
#6
Krister Brantberg, Luca Verrecchia, Magnus Westin
A key feature of superior canal dehiscence (SCD) syndrome is supranormal hearing of body sounds. The aim of the present study was to quantify this phenomenon and to ascertain whether auditory sensitivity to body vibrations can distinguish SCD patients. Hearing thresholds in response to vibration at the vertex, at the spinous process of the 7th cervical vertebra, and at the medial malleolus were tested in 10 SCD patients and 10 controls. Both patients and controls had insert earphones in both ears. The insert in the test ear was blocked while masking was presented to the other ear...
January 13, 2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/28080113/higher-order-cognitive-control-in-dual-tasks-evidence-from-task-pair-switching
#7
Patricia Hirsch, Sophie Nolden, Iring Koch
In the present study, we combined the psychological refractory period (PRP) paradigm with a novel task-pair switching logic which enabled us to isolate performance costs occurring at the global level of task-pairs. In Experiment 1, in which we used conceptually overlapping responses for Task 1 (T1) and Task 2 (T2), we generated 3 task-pairs by combining 1 of 3 visual tasks (T1) with an auditory task (T2). In addition to worse performance after a short SOA than a long SOA (i.e., PRP effect), we found impaired performance in n - 1 task-pair switches as compared to n - 1 task-pair repetitions (i...
January 12, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28080086/attentional-capture-by-taboo-words-a-functional-view-of-auditory-distraction
#8
Jan P Röer, Ulrike Körner, Axel Buchner, Raoul Bell
It is well established that task-irrelevant, to-be-ignored speech adversely affects serial short-term memory (STM) for visually presented items compared with a quiet control condition. However, there is an ongoing debate about whether the semantic content of the speech has the capacity to capture attention and to disrupt memory performance. In the present article, we tested whether taboo words are more difficult to ignore than neutral words. Taboo words or neutral words were presented as (a) steady state sequences in which the same distractor word was repeated, (b) changing state sequences in which different distractor words were presented, and (c) auditory deviant sequences in which a single distractor word deviated from a sequence of repeated words...
January 12, 2017: Emotion
https://www.readbyqxmd.com/read/28078966/visual-and-cross-modal-cues-increase-the-identification-of-overlapping-visual-stimuli-in-balint-s-syndrome
#9
Daniela D'Imperio, Michele Scandola, Valeria Gobbetto, Cristina Bulgarelli, Matteo Salgarello, Renato Avesani, Valentina Moro
INTRODUCTION: Cross-modal interactions improve the processing of external stimuli, particularly when an isolated sensory modality is impaired. When information from different modalities is integrated, object recognition is facilitated probably as a result of bottom-up and top-down processes. The aim of this study was to investigate the potential effects of cross-modal stimulation in a case of simultanagnosia. METHOD: We report a detailed analysis of clinical symptoms and an (18)F-fluorodeoxyglucose (FDG) brain positron emission tomography/computed tomography (PET/CT) study of a patient affected by Balint's syndrome, a rare and invasive visual-spatial disorder following bilateral parieto-occipital lesions...
January 12, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28078738/dorsal-pallidal-neurons-directly-link-the-nidopallium-and-midbrain-in-the-zebra-finch-taeniopygia-guttata
#10
J Martin Wild
The dorsal pallidum in birds is considered similar, if not homologous, to the globus pallidus (GP) of mammals. The dorsal pallidum projects to both thalamic and midbrain targets similar to the direct and indirect pathways arising from the internal and external segments of the GP. In the present study retrograde and anterograde tracing studies revealed a previously undescribed projection of the avian dorsal pallidum. This arises from a specific dorsomedial component, which terminates in the intercollicular nucleus and partly surrounds the avian equivalent of the central nucleus of the inferior colliculus...
January 12, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28077712/changes-in-properties-of-auditory-nerve-synapses-following-conductive-hearing-loss
#11
Xiaowen Zhuang, Wei Sun, Matthew A Xu-Friedman
: Auditory activity plays an important role in the development of the auditory system. Decreased activity can result from conductive hearing loss (CHL) associated with otitis media, which may lead to long-term perceptual deficits. The effects of CHL have been mainly studied at later stages of the auditory pathway, but early stages remain less examined. However, changes in early stages could be important because they would affect how information about sounds is conveyed to higher-order areas for further processing and localization...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28077706/connexin-mediated-signaling-in-nonsensory-cells-is-crucial-for-the-development-of-sensory-inner-hair-cells-in-the-mouse-cochlea
#12
Stuart L Johnson, Federico Ceriani, Oliver Houston, Roman Polishchuk, Elena Polishchuk, Giulia Crispino, Veronica Zorzi, Fabio Mammano, Walter Marcotti
: Mutations in the genes encoding for gap junction proteins connexin 26 (Cx26) and connexin 30 (Cx30) have been linked to syndromic and nonsyndromic hearing loss in mice and humans. The release of ATP from connexin hemichannels in cochlear nonsensory cells has been proposed to be the main trigger for action potential activity in immature sensory inner hair cells (IHCs), which is crucial for the refinement of the developing auditory circuitry. Using connexin knock-out mice, we show that IHCs fire spontaneous action potentials even in the absence of ATP-dependent intercellular Ca(2+) signaling in the nonsensory cells...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28077668/auditory-adaptation-improves-tactile-frequency-perception
#13
Lexi E Crommett, Alexis Pérez-Bellido, Jeffrey M Yau
Our ability to process temporal frequency information by touch underlies our capacity to perceive and discriminate surface textures. Auditory signals, which also provide extensive temporal frequency information, can systematically alter the perception of vibrations on the hand. How auditory signals shape tactile processing is unclear: perceptual interactions between contemporaneous sounds and vibrations are consistent with multiple neural mechanisms. Here we used a crossmodal adaptation paradigm, which separated auditory and tactile stimulation in time, to test the hypothesis that tactile frequency perception depends on neural circuits that also process auditory frequency...
January 11, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28077662/stability-and-plasticity-in-neural-encoding-of-linguistically-relevant-pitch-patterns
#14
Zilong Xie, Rachel Denise 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
https://www.readbyqxmd.com/read/28077513/cognitive-control-structures-in-the-imitation-learning-of-spatial-sequences-and-rhythms-an-fmri-study
#15
Katrin Sakreida, Satomi Higuchi, Cinzia Di Dio, Michael Ziessler, Martine Turgeon, Neil Roberts, Stefan Vogt
Imitation learning involves the acquisition of novel motor patterns based on action observation (AO). We used event-related functional magnetic resonance imaging to study the imitation learning of spatial sequences and rhythms during AO, motor imagery (MI), and imitative execution in nonmusicians and musicians. While both tasks engaged the fronto-parietal mirror circuit, the spatial sequence task recruited posterior parietal and dorsal premotor regions more strongly. The rhythm task involved an additional network for auditory working memory...
January 10, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28077170/prosodic-processing-post-traumatic-brain-injury-a-systematic-review
#16
Gabriela Ilie, Michael D Cusimano, Wenshan Li
BACKGROUND: Traumatic brain injury (TBI) survivors often report difficulties with understanding and producing paralinguistic cues, as well as understanding and producing basic communication tasks. However, a large range of communicative deficits in this population cannot be adequately explained by linguistic impairment. The review examines prosodic processing performance post-TBI, its relationship with injury severity, brain injury localization, recovery and co-occurring psychiatric or mental health issues post-TBI METHODS: A systematic review using several databases including MEDLINE, EMBASE, Cochrane, LLBA (Linguistics and Language Behaviour Abstract) and Web of Science (January 1980 to May 2015), as well as a manual search of the cited references of the selected articles and the search cited features of PubMed was performed...
January 4, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28076647/sex-specific-cognitive-abnormalities-in-early-onset-psychosis
#17
Miguel Ruiz-Veguilla, Josefa Moreno-Granados, Maria D Salcedo-Marin, Maria L Barrigon, Maria J Blanco-Morales, Evelio Igunza, Anselmo Cañabate, Maria D Garcia, Teresa Guijarro, Francisco Diaz-Atienza, Maite Ferrin
Objectives: Brain maturation differs depending on the area of the brain and sex. Girls show an earlier peak in maturation of the prefrontal cortex. Although differences between adult females and males with schizophrenia have been widely studied, there has been less research in girls and boys with psychosis. The purpose of this study was to examine differences in verbal and visual memory, verbal working memory, auditory attention, processing speed, and cognitive flexibility between boys and girls...
January 9, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28070304/an-exception-to-the-matched-filter-hypothesis-a-mismatch-of-male-call-frequency-and-female-best-hearing-frequency-in-a-torrent-frog
#18
Longhui Zhao, Jichao Wang, Yue Yang, Bicheng Zhu, Steven E Brauth, Yezhong Tang, Jianguo Cui
The matched filter hypothesis proposes that the tuning of auditory sensitivity and the spectral character of calls will match in order to maximize auditory processing efficiency during courtship. In this study, we analyzed the acoustic structure of male calls and both male and female hearing sensitivities in the little torrent frog (Amolops torrentis), an anuran species who transmits acoustic signals across streams. The results were in striking contradiction to the matched filter hypothesis. Auditory brainstem response results showed that the best hearing range was 1...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28069762/orbitofrontal-cortex-neurons-respond-to-sound-and-activate-primary-auditory-cortex-neurons
#19
Daniel E Winkowski, Daniel A Nagode, Kevin J Donaldson, Pingbo Yin, Shihab A Shamma, Jonathan B Fritz, Patrick O Kanold
Sensory environments change over a wide dynamic range and sensory processing can change rapidly to facilitate stable perception. While rapid changes may occur throughout the sensory processing pathway, cortical changes are believed to profoundly influence perception. Prior stimulation studies showed that orbitofrontal cortex (OFC) can modify receptive fields and sensory coding in A1, but the engagement of OFC during listening and the pathways mediating OFC influences on A1 are unknown. We show in mice that OFC neurons respond to sounds consistent with a role of OFC in audition...
January 8, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28063992/cross-modal-influences-on-attentional-asymmetries-additive-effects-of-attentional-orienting-and-arousal
#20
Nicole A Thomas, Alexander J Barone, Alexandra H Flew, Michael E R Nicholls
Attention is asymmetrically distributed across the visual field, such that left side stimuli are more salient, which causes a spatial bias known as pseudoneglect. Although auditory cues can be used to direct visual attention to a location, the influence of auditory distractors on visuospatial asymmetries remains unknown. We examined whether attentional orienting or arousal effects occur when either left or right auditory distractors are presented during the landmark task. We also categorised participants based on the baseline direction of pseudoneglect...
January 5, 2017: Neuropsychologia
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