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auditory brainstem response

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https://www.readbyqxmd.com/read/29792885/effects-of-vasopressin-on-neural-processing-of-infant-crying-in-expectant-fathers
#1
Sandra Thijssen, Anna E Van 't Veer, Jurriaan Witteman, Willemijn M Meijer, Marinus H van IJzendoorn, Marian J Bakermans-Kranenburg
In a randomized, double blind, placebo-controlled, within-subject magnetic resonance imaging study, we examined the effect of 20 IU intranasal vasopressin on the neural processing of infant crying in 25 fathers-to-be. We explored whether familial background modulates vasopressin effects, and whether vasopressin differentially affects cry processing coupled with neutral or emotional contextual information. Participants listened to cries accompanied by neutral ('this is an infant') or emotional ('this infant is sick/bored') contextual information, and neutral control sounds ('this is a saw')...
May 21, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29790978/mobilization-of-the-anterior-posterior-inferior-cerebellar-artery-on-the-cerebellar-surface-in-microvascular-decompression-surgery-for-hemifacial-spasm-potential-effect-on-hearing-preservation
#2
Kenichi Amagasaki, Saiko Watanabe, Atushi Hosono, Hiroshi Nakaguchi
BACKGROUND: The infrafloccular approach in microvascular decompression (MVD) for hemifacial spasm (HFS) reduces the risk of postoperative hearing impairment. However, location of the anterior/posterior inferior cerebellar artery (AICA/PICA) on the cerebellar surface in the surgical route requires mobilization to maintain the approach direction for the protection of hearing function. OBJECTIVE: To evaluate the effectiveness of mobilization of the AICA/PICA on the cerebellar surface in the surgical route...
May 22, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29784430/microvascular-decompression-for-hemifacial-spasm-surgical-techniques-and-intraoperative-monitoring
#3
M Sindou, P Mercier
Primary hemifacial spasm with few exceptions is due to the vascular compression of the facial nerve that can be evidenced with high resolution MRI. Microvascular decompression is the only curative treatment for this pathology. According to literature review detailed in chapter "conflicting vessels", the compression is located at the facial Root Exit Zone (REZ) in 95% of the cases, and in 5% distally at the cisternal or the intrameatal portion of the root as the sole conflict or in addition to one at brainstem/REZ...
May 18, 2018: Neuro-Chirurgie
https://www.readbyqxmd.com/read/29779419/an-evaluation-of-hearing-in-infants-administered-with-colistin-in-the-premature-neonatal-intensive-care-unit
#4
Selman Sarıca, Sadık Yurttutan
AIM: The aim of this study was to investigate the effects of colistin on hearing by evaluating the otoacoustic emission tests and clinical auditory brainstem responses in preterm infants treated with colistin in the neonatal intensive care unit. METHOD: The study included 30 neonates (male: n = 16, female: n = 14) born before 37 weeks who were admitted to the Neonatal Intensive Care Unit at the Kahramanmaras Sutcu Imam Medical Faculty between January 2014 and January 2015 and who were treated with colistin during their time in intensive care because of infection...
May 20, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29764783/an-analysis-of-the-parameters-used-in-speech-abr-assessment-protocols
#5
Milaine D Sanfins, Stavros Hatzopoulos, Caroline Donadon, Thais A Diniz, Leticia R Borges, Piotr H Skarzynski, Maria Francisca Colella-Santos
The aim of this study was to assess the parameters of choice, such as duration, intensity, rate, polarity, number of sweeps, window length, stimulated ear, fundamental frequency, first formant, and second formant, from previously published speech ABR studies. To identify candidate articles, five databases were assessed using the following keyword descriptors: speech ABR, ABR-speech, speech auditory brainstem response, auditory evoked potential to speech, speech-evoked brainstem response, and complex sounds...
April 2018: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/29759021/alginate-ototoxicity-in-the-mouse-model
#6
Sameer A Alvi, Jennifer Nelson-Brantley, Hinrich Staecker
Objective To determine whether alginate exposure to the round window of the mouse causes any measurable ototoxicity. Study Design Prospective animal study. Setting Basic science laboratory affiliated with a tertiary care university medical center. Subjects and Methods After Institutional Animal Care and Use Committee approval, 5 adult mice were obtained and underwent bullostomy and round window niche application of alginate. Auditory brainstem response (ABR) tests were completed at baseline prior to the procedure and also 5, 14, and 30 days postprocedure...
May 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29757799/improved-detection-of-vowel-envelope-frequency-following-responses-using-hotelling-s-t2-analysis
#7
Frederique J Vanheusden, Steven L Bell, Michael A Chesnaye, David M Simpson
OBJECTIVES: Objective detection of brainstem responses to natural speech stimuli is an important tool for the evaluation of hearing aid fitting, especially in people who may not be able to respond reliably in behavioral tests. Of particular interest is the envelope frequency following response (eFFR), which refers to the EEG response at the stimulus' fundamental frequency (and its harmonics), and here in particular to the response to natural spoken vowel sounds. This article introduces the frequency-domain Hotelling's T (HT2) method for eFFR detection...
May 11, 2018: Ear and Hearing
https://www.readbyqxmd.com/read/29756544/influence-of-malnutrition-on-the-development-of-the-central-nervous-system-of-malnourished-children
#8
Rosimar Costa Penido, Myriam Lima Isaac, Alexandre Batista Penido
INTRODUCTION: Protein-caloric malnutrition is a public health concern in certain areas of the Brazil. It can affect growth, the auditory nervous system development and, consequently, the cognition. This study compared the Brainstem Auditory Evoked Potential (BAEP) between malnourished and eutrophic children. METHODS: A total of 111 children, aged 0-60 months, were examined: 57 were malnourished, according to the World Health Organization criteria, and 54 were normo-nourished...
May 14, 2018: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29753496/an-evidence-based-protocol-for-managing-neonatal-middle-ear-effusions-in-babies-who-fail-newborn-hearing-screening
#9
Brittany C Weber, Scott M Whitlock, Kaidi He, Blake S Kimbrell, Craig S Derkay
OBJECTIVES: To evaluate the prevalence of middle ear disease in infants referred for failed newborn hearing screening (NBHS) and to review patient outcomes after intervention in order to propose an evidence-based protocol for management of newborns with otitis media with effusion (OME) who fail NBHS. METHODS: 85 infants with suspected middle ear pathology were retrospectively reviewed after referral for failed NBHS. All subjects underwent a diagnostic microscopic exam with myringotomy with or without placement of a ventilation tube in the presence of a middle ear effusion and had intra-operative auditory brainstem response (ABR) testing or testing at a later date...
April 12, 2018: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29746905/chronic-lead-exposure-induces-cochlear-oxidative-stress-and-potentiates-noise-induced-hearing-loss
#10
Samson Jamesdaniel, Rita Rosati, Judy Westrick, Douglas M Ruden
Acquired hearing loss is caused by complex interactions of multiple environmental risk factors, such as elevated levels of lead and noise, which are prevalent in urban communities. This study delineates the mechanism underlying lead-induced auditory dysfunction and its potential interaction with noise exposure. Young-adult C57BL/6 mice were exposed to: 1) control conditions; 2) 2 mM lead acetate in drinking water for 28 days; 3) 90 dB broadband noise 2 h/day for two weeks; and 4) both lead and noise...
May 7, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29745880/the-role-of-auditory-evoked-potentials-and-otoacoustic-emissions-in-early-detection-of-hearing-abnormalities-in-beh%C3%A3-et-s-disease-patients-a-case-control-study
#11
Doa W Nada, Radwa M El Khouly, Souzan E Gadow, Shymaa A Hablas, Marwa A Aboelhawa, Doaa S Al Ashkar, Amal M El Barbary, Manal S Hussein, Elsayed Rageh, Alaa M Elsalawy, Mohamed H Abo-Zaid, Samah Elshweikh, Amani M El Gharib
OBJECTIVES: To determine the types and to assess the role of auditory evoked potentials and otoacoustic emissions in early detection of hearing abnormalities in Behçet's disease (BD) patients. Their correlations with disease activity were also considered. METHODS: Thirty patients with BD and thirty apparently sex- and age-matched healthy volunteers were included in this study. Auditory evaluation included pure tone audiometry (PTA), otoacoustic emissions (TEOAEs, DPOAE), auditory brainstem response test (ABR) and cortical auditory evoked potentials (tone and speech CAEPs) for all patients and control...
May 10, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29744730/persistent-auditory-nerve-damage-following-kainic-acid-excitotoxicity-in-the-budgerigar-melopsittacus-undulatus
#12
Kenneth S Henry, Kristina S Abrams
Permanent loss of auditory nerve (AN) fibers occurs with increasing age and sound overexposure, sometimes without hair cell damage or associated audiometric threshold elevation. Rodent studies suggest effects of AN damage on central processing and behavior, but these species have limited capacity to discriminate low-frequency speech-like sounds. Here, we introduce a new animal model of AN damage in an avian communication specialist, the budgerigar (Melopsittacus undulatus). The budgerigar is a vocal learner and speech mimic with sensitive low-frequency hearing and human-like behavioral sensitivity to many complex signals including speech components...
May 9, 2018: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/29744729/supra-threshold-hearing-and-fluctuation-profiles-implications-for-sensorineural-and-hidden-hearing-loss
#13
REVIEW
Laurel H Carney
An important topic in contemporary auditory science is supra-threshold hearing. Difficulty hearing at conversational speech levels in background noise has long been recognized as a problem of sensorineural hearing loss, including that associated with aging (presbyacusis). Such difficulty in listeners with normal thresholds has received more attention recently, especially associated with descriptions of synaptopathy, the loss of auditory nerve (AN) fibers as a result of noise exposure or aging. Synaptopathy has been reported to cause a disproportionate loss of low- and medium-spontaneous rate (L/MSR) AN fibers...
May 9, 2018: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/29742889/intraoperative-neurophysiological-monitoring-a-review-of-techniques-used-for-brain-tumor-surgery-in-children
#14
REVIEW
Keewon Kim, Charles Cho, Moon-Suk Bang, Hyung-Ik Shin, Ji-Hoon Phi, Seung-Ki Kim
Intraoperative monitoring (IOM) utilizes electrophysiological techniques as a surrogate test and evaluation of nervous function while a patient is under general anesthesia. They are increasingly used for procedures, both surgical and endovascular, to avoid injury during an operation, examine neurological tissue to guide the surgery, or to test electrophysiological function to allow for more complete resection or corrections. The application of IOM during pediatric brain tumor resections encompasses a unique set of technical issues...
May 2018: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29742032/modulation-of-motor-cortical-excitability-with-auditory-stimulation
#15
Olli Löfberg, Petro Julkunen, Elisa Kallioniemi, Ari Pääkkönen, Jari Karhu
Loud sounds have been demonstrated to increase motor cortex excitability when transcranial magnetic stimulation (TMS) is synchronized with auditory evoked N100 potential measured from electroencephalography (EEG). The N100 potential is generated by an afferent response to sound onset and feature analysis, and upon novel sound it is also related to the arousal reaction. Arousal reaction is known to originate from the ascending reticular activating system of the brainstem and to modulate neuronal activity throughout the central nervous system...
May 9, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29740286/optogenetic-control-of-neural-circuits-in-the-mongolian-gerbil
#16
Stefan Keplinger, Barbara Beiderbeck, Stylianos Michalakis, Martin Biel, Benedikt Grothe, Lars Kunz
The Mongolian gerbil ( Meriones unguiculatus ) is widely used as a model organism for the human auditory system. Its hearing range is very similar to ours and it uses the same mechanisms for sound localization. The auditory circuits underlying these functions have been characterized. However, important mechanistic details are still under debate. To elucidate these issues, precise and reversible optogenetic manipulation of neuronal activity in this complex circuitry is required. However, genetic and genomic resources for the Mongolian gerbil are poorly developed...
2018: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29730165/impact-of-hematopoietic-stem-cell-transplant-on-vep-and-abr-values-of-the-patients-with-malignant-infantile-osteopetrosis
#17
Reza Shervin Badv, S Sharareh Dehghani, Maryam Behfar, Batoul Ahadi, Abdolreza Tabasi, Amir Ali Hamidieh
OBJECTIVES: Malignant Infantile Osteopetrosis (MIOP) is a rare inherited disorder with neurological complications, notably visual impairment and decrease of hearing level. Although Hematopoietic Stem Cell Transplantation (HSCT) has been approved as the only curative treatment for these patients, the exact impact of it on visual and hearing level is still unclear. STUDY DESIGN: We analyzed the P2 latency and amplitude from Visual Evoked Potentials (VEP) of 10 patients (20 eyes) and the threshold of wave V from Auditory Brainstem Response (ABR) of 15 patients (30 ears) with MIOP before, 6 and 12 months after HSCT...
April 18, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29728188/auditory-function-and-motor-proficiency-in-type-1-diabetic-children-a-case-control-study
#18
Jalali Mir Mohammad, Soleimani Robabeh, Koohmanai Shahin, Tizno Saeed, Akbari Maryam
OBJECTIVES: The aim of the study was to evaluate the auditory and motor functions in children with insulin dependent diabetes mellitus (IDDM). METHODS: This case-control study, 65 diabetic children, receiving care in Diabetes Center of 17 Sharivar Hospital, were enrolled. 130 controls were matched to cases by age and sex. The authors performed audio-vestibular tests, including pure tone audiometry (PTA), distortion product otoacoustic emission (DPOAE), auditory brainstem response (ABR), bedside head-impulse test and dynamic visual acuity test...
June 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29728184/an-audiological-evaluation-of-syndromic-and-non-syndromic-craniosynostosis-in-pre-school-going-children
#19
Liang Chye Goh, Ali Azman, Hufaidah Binti Konting Siti, Wee Vien Khoo, Premala A/P Muthukumarasamy, Meow Keong Thong, Zulkiflee Abu Bakar, Anura Michelle Manuel
OBJECTIVE: To study the audiological outcome and early screening of pre-school going children with craniosynostosis under follow-up at the University of Malaya Medical Center(UMMC), Kuala Lumpur, Malaysia over a 10 year period. METHODS: A retrospective descriptive cohort study on the audiological findings detected during the first hearing assessment done on a child with craniosynostosis using otoacoustic emissions, pure tone audiometry or auditory brainstem response examination...
June 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29725841/auditory-function-in-pelizaeus-merzbacher-disease
#20
Thierry Morlet, Kyoko Nagao, S Charles Bean, Sara E Mora, Sarah E Hopkins, Grace M Hobson
Pelizaeus-Merzbacher disease (PMD; MIM 312080), an inherited defect of central nervous system myelin formation, affects individuals in many ways, including their hearing and language abilities. The aim of this study was to assess the auditory abilities in 18 patients with PMD by examining the functional processes along the central auditory pathways using auditory brainstem responses (ABR) and cortical auditory evoked potentials (CAEP) in response to speech sounds. The significant ABR anomalies confirm the existence of dyssynchrony previously described at the level of the brainstem in patients with PMD...
May 3, 2018: Journal of Neurology
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