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Auditory gap detection

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https://www.readbyqxmd.com/read/28434173/the-effect-of-resilience-on-task-persistence-and-performance-during-repeated-exposure-to-heat-pain
#1
P Maxwell Slepian, Christopher R France
The Pain Resilience Scale was recently developed to assess dimensions of resilience critical to pain-related adaptation and was found to predict experimental pain sensitivity in a pain-free population. Pain resilience has also been theoretically linked to behavioral persistence despite pain. To date, however, this hypothesis has not been experimentally tested. To address this gap in the literature, in the current study 105 healthy young adults underwent a baseline administration of the Paced Auditory Serial Addition Test (PASAT), a stressful mental arithmetic task, delivered with somatosensory distraction (i...
April 22, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28413888/implementation-and-evaluation-of-a-danish-test-battery-for-auditory-processing-disorder-in-children
#2
Ellen Raben Pedersen, Berit Dahl-Hansen, Jakob Christensen-Dalsgaard, Christian Brandt
OBJECTIVE: This study presents a Danish test battery for auditory processing disorder (APD). The tests were evaluated as to normative cut-off values (pass-fail criteria) and their test-retest reliability. DESIGN: The battery consists of four behavioural tests: the filtered words (FW) test, the dichotic digits (DD) test, the gap detection (GD) test and the binaural masking level difference (BMLD) test. The tests were evaluated through listening experiments on children with no known history of auditory problems...
April 15, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28411034/task-optimal-auditory-attention-set-restored-as-fast-in-older-as-in-younger-adults-after-distraction
#3
Márta Volosin, Zsófia Anna Gaál, János Horváth
The present study investigated how fast younger and older adults recovered from a distracted attentional state induced by rare, unpredictable sound events. The attentional state was characterized by the auditory N1 event-related potential (ERP), which is enhanced for sound events in the focus of attention. Younger (19-26 years) and older (62-74 years) adults listened to continuous tones containing rare pitch changes (glides) and short gaps. Glides and gaps could be separated in 150ms, 250ms, 650ms or longer and the task was gaps detection while ignoring glides...
April 11, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28374872/influence-of-temporal-resolution-skills-in-speech-discrimination-abilities-of-older-subjects
#4
P G Nair, B M Basheer
Compromised temporal resolving power of the auditory system can be one of the main factors contributing to poor speech perception skills in the elderly. Very few of the earlier studies have systematically examined this aspect. Hence, the current study was designed with the following objectives: 1) To establish normative database of Gaps in Noise (GIN) test in elderly population in an Indian context. 2) To determine the relationship between speech discrimination skills and temporal resolution abilities in elderly individuals with normal hearing sensitivity...
February 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28239338/differential-neural-responses-underlying-the-inhibition-of-the-startle-response-by-pre-pulses-or-gaps-in-mice
#5
Rocio Moreno-Paublete, Barbara Canlon, Christopher R Cederroth
Gap pre-pulse inhibition of the acoustic startle (GPIAS) is a behavioral paradigm used for inferring the presence of tinnitus in animal models as well as humans. In contrast to pre-pulse inhibition (PPI), the neural circuitry controlling GPIAS is poorly understood. To increase our knowledge on GPIAS, a comparative study with PPI was performed in mice combining these behavioral tests and c-Fos activity mapping in brain areas involved in the inhibition of the acoustic startle reflex (ASR). Both pre-pulses and gaps efficiently inhibited the ASR and abolished the induction of c-Fos in the pontine reticular nucleus...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28214516/saturation-of-long-term-potentiation-in-the-dorsal-cochlear-nucleus-and-its-pharmacological-reversal-in-an-experimental-model-of-tinnitus
#6
Thomas Tagoe, Daniel Deeping, Martine Hamann
Animal models have demonstrated that tinnitus is a pathology of dysfunctional excitability in the central auditory system, in particular in the dorsal cochlear nucleus (DCN) of the brainstem. We used a murine model and studied whether acoustic over-exposure leading to hearing loss and tinnitus, affects long-term potentiation (LTP) at DCN multisensory synapses. Whole cell and field potential recordings were used to study the effects on release probability and synaptic plasticity, respectively in brainstem slices...
February 16, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28185661/age-related-deficits-in-auditory-temporal-processing-unique-contributions-of-neural-dyssynchrony-and-slowed-neuronal-processing
#7
Kelly C Harris, Judy R Dubno
This study was guided by the hypothesis that the aging central nervous system progressively loses its ability to process rapid acoustic changes that are important for speech recognition. Specifically, we hypothesized that age-related deficits in neural synchrony and neuronal oscillatory activity occur independently in older adults and disrupt auditory temporal processing. Neural synchrony is largely dependent on phase locking within the central auditory pathway, beginning at the auditory nerve. In contrast, the resonance characteristics of oscillatory activity are dependent on the integrity and structure of long range cortical connections...
May 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28097439/modeling-responses-in-the-superior-paraolivary-nucleus-implications-for-forward-masking-in-the-inferior-colliculus
#8
Nima Salimi, Muhammad S A Zilany, Laurel H Carney
A phenomenological model of the responses of neurons in the superior paraolivary nucleus (SPON) of the rodent is presented in this study. Pure tones at the characteristic frequency (CF) and broadband noise stimuli evoke offset-type responses in these neurons. SPON neurons also phase-lock to the envelope of sinusoidally amplitude-modulated (SAM) stimuli for a range of modulation frequencies. Model SPON neuron received inhibitory input that was relayed by the ipsilateral medial nucleus of the trapezoid body from the contralateral model ventral cochlear nucleus neuron...
January 17, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28054915/auditory-processing-disorder-as-the-sole-manifestation-of-a-cerebellopontine-and-internal-auditory-canal-lesion
#9
Vasiliki Vivian Iliadou, Nikos Eleftheriadis
BACKGROUND: Clinical importance of auditory processing disorder (APD) testing is often overlooked and regarded with skepticism given the challenging interpretation of results and the current growing debate of its nature and clinical entity. PURPOSE: Presentation of this case is highly educational as APD is the single clinical manifestation of a large cerebellopontine and internal auditory canal lesion. RESEARCH DESIGN: A case report. DATA COLLECTION AND ANALYSIS: The patient underwent a standard audiological evaluation with normal results...
January 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28050647/deleting-the-hcn1-subunit-of-hyperpolarization-activated-ion-channels-in-mice-impairs-acoustic-startle-reflexes-gap-detection-and-spatial-localization
#10
James R Ison, Paul D Allen, Donata Oertel
It has been proposed that the high temporal and spatial acuities of human listeners and animals tested in the hearing laboratory depend in part on the short time constants of auditory neurons that are able to preserve or sharpen the information conveyed in the timing of firing of auditory nerve fibers. We tested this hypothesis in a series of in vivo experiments, based on previous in vitro experiments showing that neuronal time constants are raised in brainstem slices when HCN1 channels are blocked or in slices obtained from Hcn1 (-/-) null mutant mice...
January 3, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28024919/effect-of-gap-detection-threshold-on-consistency-of-speech-in-children-with-speech-sound-disorder
#11
Fateme Sayyahi, Zahra Soleymani, Mohammad Akbari, Mahmood Bijankhan, Behrooz Dolatshahi
BACKGROUND AND AIMS: The present study examined the relationship between gap detection threshold and speech error consistency in children with speech sound disorder. METHODS AND PROCEDURES: The participants were children five to six years of age who were categorized into three groups of typical speech, consistent speech disorder (CSD) and inconsistent speech disorder (ISD).The phonetic gap detection threshold test was used for this study, which is a valid test comprised six syllables with inter-stimulus intervals between 20-300ms...
December 23, 2016: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/27893606/cochlear-brainstem-and-psychophysical-responses-show-spectrotemporal-tradeoff-in-human-auditory-processing
#12
Gavin M Bidelman, Shaum P Bhagat
Auditory filter theory posits a tradeoff in time-frequency analysis: high temporal precision is achievable only at the expense of poorer frequency resolution and vice versa. Here, we examined the hierarchy of brain mechanisms of these spectrotemporal tradeoffs through a series of physiological and behavioral measures aimed to tap temporal and spectral acuity at different levels of the auditory neuroaxis (cochlea→brainstem→percept). Cochlear and behavioral frequency selectivity was measured by stimulus-frequency otoacoustic emissions (SFOAE) and psychophysical tuning curves; temporal acuity was measured physiologically and behaviorally by paired click recovery of auditory brainstem responses (ABRs) and gap detection thresholds (GDTs), respectively...
January 1, 2017: Neuroreport
https://www.readbyqxmd.com/read/27885514/speech-evoked-auditory-brainstem-response-and-gap-detection-threshold-in-middle-aged-individual
#13
Himanshu Kumar Sanju, Vaishnavi Bohra, Sujeet Kumar Sinha
This study aimed at characterizing the gap detection threshold (GDT) and speech evoked ABR (SABR) in younger and middle-aged individuals. Two groups of subjects were participated in the study which includes 15 young adults in the age range of 15-25 years and 15 middle-aged individuals in the age range of 40-60 years. SABR with stimulus/da/of 40 ms and GDT were investigated on both groups. For SABR, Mann-Whitney U test revealed that ageing has significantly adverse effect on the encoding of F1 and F2 at brainstem level...
November 24, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27869513/adverse-effects-of-pesticides-on-central-auditory-functions-in-tobacco-growers
#14
França Denise Maria Vaz Romano, Adriana Bender Moreira Lacerda, Diolen Lobato, Angela Ribas, Karin Ziliotto Dias, Tony Leroux, Adrian Fuente
OBJECTIVE: To investigate the effects of exposure to pesticides on the central auditory functions (CAF) of Brazilian tobacco growers. DESIGN: This was a cross-sectional study carried out between 2010 and 2012. Participants were evaluated with two behavioural procedures to investigate CAF, the random gap detection test (RGDT) and the dichotic digit test in Portuguese (DDT). STUDY SAMPLE: A total of 22 growers exposed to pesticides (study group) and 21 subjects who were not exposed to pesticides (control group) were selected...
November 21, 2016: International Journal of Audiology
https://www.readbyqxmd.com/read/27862478/reductions-in-cortical-alpha-activity-enhancements-in-neural-responses-and-impaired-gap-detection-caused-by-sodium-salicylate-in-awake-guinea-pigs
#15
Joel I Berger, Ben Coomber, Mark N Wallace, Alan R Palmer
Tinnitus chronically affects between 10-15% of the population but, despite its prevalence, the underlying mechanisms are still not properly understood. One experimental model involves administration of high doses of sodium salicylate, as this is known to reliably induce tinnitus in both humans and animals. Guinea pigs were implanted with chronic electrocorticography (ECoG) electrode arrays, with silver-ball electrodes placed on the dura over left and right auditory cortex. Two more electrodes were positioned over the cerebellum to monitor auditory brainstem responses (ABRs)...
February 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27819648/evaluation-of-the-relationship-between-the-air-bone-gap-and-prolonged-abr-latencies-in-mixed-type-hearing-loss
#16
Ömer Faruk Birkent, Turgut Karlıdağ, Figen Başar, Şinasi Yalçın, İrfan Kaygusuz, Erol Keleş, Abdulvahap Akyiğit
OBJECTIVE: The aim of this study was to determine the air-bone gaps in adults with mixed-type hearing loss using air-conduction auditory brainstem response (ABR) latencies. MATERIALS AND METHODS: Thirty adults with mixed-type hearing loss (study group) and 30 adults with normal hearing (control group) were included in this study. Before performing ABR measurements, ear, nose, and throat examinations, pure tone audiometry, speech audiometry, acoustic immittance audiometry, and transient evoked autoacoustic emission testing were performed for all participants...
November 7, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27746835/auditory-temporal-resolution-in-individuals-with-diabetes-mellitus-type-2
#17
Rajkishor Mishra, Himanshu Kumar Sanju, Prawin Kumar
Introduction "Diabetes mellitus is a group of metabolic disorders characterized by elevated blood sugar and abnormalities in insulin secretion and action" (American Diabetes Association). Previous literature has reported connection between diabetes mellitus and hearing impairment. There is a dearth of literature on auditory temporal resolution ability in individuals with diabetes mellitus type 2. Objective The main objective of the present study was to assess auditory temporal resolution ability through GDT (Gap Detection Threshold) in individuals with diabetes mellitus type 2 with high frequency hearing loss...
October 2016: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/27746832/temporal-resolution-and-active-auditory-discrimination-skill-in-vocal-musicians
#18
Prawin Kumar, Himanshu Kumar Sanju, J Nikhil
Introduction Enhanced auditory perception in musicians is likely to result from auditory perceptual learning during several years of training and practice. Many studies have focused on biological processing of auditory stimuli among musicians. However, there is a lack of literature on temporal resolution and active auditory discrimination skills in vocal musicians. Objective The aim of the present study is to assess temporal resolution and active auditory discrimination skill in vocal musicians. Method The study participants included 15 vocal musicians with a minimum professional experience of 5 years of music exposure, within the age range of 20 to 30 years old, as the experimental group, while 15 age-matched non-musicians served as the control group...
October 2016: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/27608143/anatomical-functional-and-quality-of-life-results-for-mastoid-and-epitympanic-obliteration-with-bioactive-glass-s53p4-a-prospective-clinical-study
#19
D Bernardeschi, N Pyatigorskaya, F Y Russo, D De Seta, G Corallo, E Ferrary, Y Nguyen, O Sterkers
OBJECTIVE: To analyse the anatomical, functional and quality-of-life results when using bioactive glass in mastoid and epitympanic obliteration. DESIGN: Prospective clinical study. SETTING: Tertiary referral centre. PARTICIPANTS: Forty-one cases (39 patients) operated between May 2013 and January 2015. MAIN OUTCOME MEASURES: Anatomical results were evaluated by otomicroscopy 1 year after surgery and using imaging to detect residual disease...
September 8, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27598040/the-effect-of-distraction-on-change-detection-in-crowded-acoustic-scenes
#20
Theofilos Petsas, Jemma Harrison, Makio Kashino, Shigeto Furukawa, Maria Chait
In this series of behavioural experiments we investigated the effect of distraction on the maintenance of acoustic scene information in short-term memory. Stimuli are artificial acoustic 'scenes' composed of several (up to twelve) concurrent tone-pip streams ('sources'). A gap (1000 ms) is inserted partway through the 'scene'; Changes in the form of an appearance of a new source or disappearance of an existing source, occur after the gap in 50% of the trials. Listeners were instructed to monitor the unfolding 'soundscapes' for these events...
September 2, 2016: Hearing Research
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