scholarly journals Impact of Stimulus Polarity on oVEMP Response Using the Belly-Tendon Electrode Montage

2019 ◽  
Vol 30 (05) ◽  
pp. 357-362
Author(s):  
Daniel J. Romero ◽  
Blythe H. Kitner ◽  
Matthew J. Wilson ◽  
Kaylee J. Smith
Keyword(s):  
Data Collection ◽  
Middle Ear ◽  
Upright Position ◽  
Response Amplitude ◽  
Stimulus Parameter ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Data Collection And Analysis ◽  
History Of ◽  
Contralateral Eye

AbstractOne stimulus parameter not well established with respect to the ocular vestibular evoked myogenic potential (oVEMP) is stimulus polarity. Many research studies traditionally record oVEMPs using alternating polarity primarily.The purpose of this study was to evaluate the effects of stimulus polarity on the oVEMP response under three different conditions (condensation, rarefaction, and alternating) with updated but established recording procedures—the belly-tendon electrode montage.oVEMPs were assessed with changes in stimulus polarity in the seated upright position.Thirty otologically normal participants (60 ears) with no history of hearing or balance disorders and normal middle ear function.Five hundred–hertz air-conducted tone bursts at 95-dB nHL were used to evoke the oVEMP response while recordings were made from the contralateral eye to acoustical stimulation using the belly-tendon electrode montage. Measurements were made using three polarities: alternating, condensation, and rarefaction. Natus Bio-logic AEP hardware and software was used for all data collection and analysis.Condensation stimulus phase provided the largest response amplitude compared with alternating and/or rarefaction. Rarefaction provided the earliest latency among stimulus polarities.Condensation is a more effective stimulus polarity regarding response amplitude when recording the oVEMP. This study further supports the use of the belly-tendon electrode montage for recording the oVEMP response.

Adapting and Advancing Organizational Communication Research Methods

2018 ◽  
pp. 151-167
Author(s):  
Keri K. Stephens
Keyword(s):  
Data Collection ◽  
Organizational Communication ◽  
Research Methods ◽  
Pedagogical Issues ◽  
Management Communication ◽  
Broad Perspective ◽  
Data Collection And Analysis ◽  
History Of ◽  
Rich History

Organizational Communication scholars have a rich history of encouraging multiple approaches to data collection and analysis. In this chapter, I provide examples from our recent history that illustrate how we have developed our broad perspective on research methods. I also disclose the struggles I had when trying to decide how to represent the trends in published methods found in Management Communication Quarterly between 2000 and 2015. My analysis revealed that approximately two thirds of the papers published in MCQ used a qualitative approach to data collection. Mixed methods were rare, while using multiple methods was more common and has been stable over time. The chapter ends by highlighting pedagogical issues surrounding our field's acceptance of methodological diversity. I argue that as teachers, we must not lose the value of educating the next generation to be methodologically deep in some research approaches. However, we must also encourage methodological curiosity; a mindset that will allow our students to continue learning methods well beyond their graduate education.

Tone-induced cervical and ocular vestibular-evoked myogenic potentials: comparing abnormalities in traumatic and non-traumatic vestibular disease

2018 ◽  
Vol 132 (10) ◽  
pp. 906-910 ◽  
Author(s):  
N S Longridge ◽  
A I Mallinson
Keyword(s):  
Companion Paper ◽  
High Rate ◽  
Vestibular Evoked Myogenic Potentials ◽  
Tertiary Referral ◽  
Vestibular Evoked Myogenic Potential ◽  
Vestibular Disease ◽  
Myogenic Potential ◽  
Number Of Patients ◽  
History Of ◽  
Vestibular Assessment

AbstractBackgroundOtolithic function is poorly understood, but vestibular-evoked myogenic potential testing has allowed the documentation of pathology in patients who complain of imbalance.MethodsSeventy-four patients with traumatic and non-traumatic vestibular disease were sequentially assessed at a tertiary referral neuro-otology unit in a teaching hospital. A detailed history of all patients was taken and standard vestibular assessment was conducted using the technique described in the companion paper. The results of both groups of patients were analysed and the rate of abnormalities was assessed.ResultsThere was a high rate of abnormalities, including bilateral pathology, in a significant number of patients. Many patients in both groups inexplicably failed to recover.ConclusionVestibular-evoked myogenic potentials are helpful in documenting pathology, including bilateral pathology, which is outlined in the literature as being exceedingly difficult to compensate for.

scholarly journals Museum ethnography: Researching punishment museums as environments of narrativity

2017 ◽  
Vol 10 (1) ◽  
pp. 205979911772061
Author(s):  
Hannah Thurston
Keyword(s):  
Data Collection ◽  
Cultural Identity ◽  
Significant Role ◽  
Narrative Analysis ◽  
The Public ◽  
Crime And Punishment ◽  
The Past ◽  
Practical Guide ◽  
Data Collection And Analysis ◽  
History Of

Like all museums, punishment museums and sites of penal tourism are inherently political and moral institutions, offering cultural memories of a collective past. As environments of narrativity, these are significant spaces in which the public ‘learn’ about the past and how it continues to inform the present. In line with recent studies about ‘dark’ tourist sites, this article argues that the crime/punishment museum and jail cell tour can – and should – be understood as an ethnographic opportunity for narrative analysis. Rather than focus on just the findings of such an analysis, this article seeks to provide a practical guide to data collection and analysis in the context of criminological museum research. Offering illustrative examples from a study of Texan sites of penal tourism, it demonstrates how the history of punishment – as represented in museums – is an important part of cultural identity more broadly, playing a significant role in how we conceptualise (in)justice, morality and the purpose of punishment. In short, this article discusses how we can evoke the ethnographic tradition within museum spaces in order to interrogate how crime and punishment are expressed through narratives, images, objects and symbols.

The Influence of Caffeine on Calorics and Cervical Vestibular Evoked Myogenic Potentials (cVEMPs)

2014 ◽  
Vol 25 (03) ◽  
pp. 261-267 ◽  
Author(s):  
Kathleen McNerney ◽  
Mary Lou Coad ◽  
Robert Burkard
Keyword(s):  
Data Collection ◽  
Vestibular Function ◽  
Stimulus Presentation ◽  
Vestibular Evoked Myogenic Potentials ◽  
Future Research ◽  
Vestibular Evoked Myogenic Potential ◽  
Moderate Amount ◽  
Potential System ◽  
History Of ◽  
Clinically Significant

Background: Prior to undergoing vestibular function testing, it is not uncommon for clinicians to request that patients abstain from caffeine 24 hr prior to the administration of the tests. However, there is little evidence that caffeine affects vestibular function. Purpose: To evaluate whether the results from two tests commonly used in a clinical setting to assess vestibular function (i.e., calorics and the cervical vestibular evoked myogenic potential [cVEMP]) are affected by caffeine. Research Design: Subjects were tested with and without consuming a moderate amount of caffeine prior to undergoing calorics and cVEMPs. Study Sample: Thirty young healthy controls (mean = 23.28 yr; females = 21). Subjects were excluded if they reported any history of vestibular/balance impairment. Data Collection and Analysis: The Variotherm Plus Caloric Irrigator was used to administer the water, while the I-Portal VNG software was used to collect and analyze subjects’ eye movements. The TECA Evoked Potential System was used for the cVEMP stimulus presentation as well as for the data collection. During cVEMP collection, subjects were asked to monitor their sternocleidomastoid muscle contraction with a Delsys EMG monitor. IBM SPSS Statistics 20 was used to statistically analyze the results via paired t-tests. Results: Analysis of the data revealed that ingestion of caffeine did not significantly influence the results of either test of vestibular function. Conclusions: The results revealed that a moderate amount of caffeine does not have a clinically significant effect on the results from caloric and cVEMP tests in young healthy adults. Future research is necessary to determine whether similar results would be obtained from individuals with a vestibular impairment, as well as older adults.

scholarly journals Experiencing Audio Recorded Research (EARR): Giving Voice to Qualitative Poster Presentations

2015 ◽  
Author(s):  
Rasheeta Chandler ◽  
Erica Antsey ◽  
Cindy Munro ◽  
Dianne Morrison-Beedy
Keyword(s):  
Qualitative Research ◽  
Data Collection ◽  
Qualitative Data ◽  
Data Dissemination ◽  
Audio Technology ◽  
Data Collection And Analysis ◽  
History Of ◽  
Poster Presentations

Qualitative research emphasizes and honors the words of participants in an effort to generate meaning and knowledge, yet participants’ voices are rarely heard beyond data collection and analysis. We explore the potential to share participants' voices when disseminating research through audio - enhanced poster presentations. Technological advancements in multimedia could revolutionize poster presentations, especially for qualitative research. We describe the history of audio guides and how they can be applied to the dissemination of qualitative research. We also introduce the Experiencing Audio Recorded Research (EARR) Model to facilitate designing a multisensory approach to qualitative data dissemination through integrating audio technology into presentations.

scholarly journals Case Report: Isolated Idiopathic Saccular Dysfunction

2021 ◽  
Vol 12 ◽  
Author(s):  
Sofia Waissbluth ◽  
Javier Oyarzún
Keyword(s):  
Case Report ◽  
Semicircular Canal ◽  
Clinical Presentation ◽  
Potential Response ◽  
Vestibular Evoked Myogenic Potential ◽  
True Incidence ◽  
Myogenic Potential ◽  
Vestibular Testing ◽  
History Of ◽  
The Right

Advances in vestibular testing have now allowed us to test each semicircular canal as well as the utricle and saccule, independently. This has led to the discovery of new patterns of vestibular dysfunction that were once impossible to evaluate. This report describes the case of a 20-year-old woman with a 2-month history of recurrent dizziness. She had a complete audiovestibular assessment. The only abnormality observed was the absence of a cervical vestibular-evoked myogenic potential response for the right side, hence an isolated saccular dysfunction. In conclusion, isolated otolithic dysfunction is probably an overlooked and neglected clinical presentation. Its true incidence is unknown, and further research is needed to understand this clinical entity.

Grounded Theory Approaches to Research on Virtual Work

2012 ◽  
pp. 160-175 ◽  
Author(s):  
Danna M. Gibson ◽  
Lynne M. Webb
Keyword(s):  
Grounded Theory ◽  
Data Collection ◽  
Virtual Work ◽  
Human Interactions ◽  
Data Collection And Analysis ◽  
Writing Research ◽  
History Of

This chapter explains how researchers can effectively employ grounded theory to study virtual work. The chapter defines grounded theory, reports the history of its development, describes its data collection and analysis, as well as offers guidelines for writing research reports of grounded theory analyses of human interactions surrounding virtual work.

Analysis and interpretation of air-conducted ocular vestibular-evoked myogenic potentials (AC-oVEMP) – our experience in healthy adults

2019 ◽  
Vol 74 (2) ◽  
pp. 1-6
Author(s):  
Klaudyna Zwierzyńska ◽  
Magdalena Lachowska ◽  
Emanuel Tataj ◽  
Kazimierz Niemczyk
Keyword(s):  
Vestibular Evoked Myogenic Potentials ◽  
Reference Ranges ◽  
Equilibrium System ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Age Related ◽  
History Of ◽  
The Time Domain ◽  
The Right ◽  
The Waves

Background: Ocular vestibular-evoked myogenic potential (oVEMP) is one of recently introduced tests used to assess the function of the equilibrium system. It is still under research and no consensus has been reached yet. Aim: To analyze AC-oVEMP response parameters in subjects with no history of neurological or vestibular deficits. Material and Methods: The AC-oVEMPs collected from 50 subjects (100 ears) were analyzed in this prospective study for the response presence in the time domain, the latencies and amplitudes of the waves. Results: No statistically significant differences were observed between the right and left ear considering both N1 latency, and amplitude. Significant differences were noted when comparing the groups <40 yo vs ≥40 yo (shorter latencies and higher amplitudes were observed in subjects <40). Conclusions and Significance: This thorough AC-oVEMP analysis in a group of healthy volunteers facilitated the proposal of reference ranges with a simultaneous indication of age-related differences. Shorter oVEMP latencies and higher amplitudes were observed in subjects <40 yo, while in the subjects ≥40 yo the latencies were longer and the amplitudes lower.

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