Speech Pathology and Audiology Commons^™

A Measure Of Spatial Orientation In Healthy Adults, Lauren Maloney

Dissertations, 2020-current

Spatial orientation is essential for effective navigation and movement, relying on the integration of sensory inputs from systems such as proprioception, vision, audition, and the vestibular system. The vestibular system, responsible for detecting rotational and linear movements, plays a crucial role in maintaining balance and spatial awareness. However, its specific influence on spatial orientation remains underexplored. This study investigates how vestibular input influences spatial orientation accuracy by examining participants' ability to estimate angular displacement during rotational stimuli. Twenty participants underwent testing using a rotational chair, with stimuli at varying rotational amplitudes (5-400 degrees). Along with their perceived angular displacement (i.e. …

Novel Paradigm For Assessing Vestibular Perception In Children, Nicole Kirk

Dissertations, 2020-current

While objective vestibular reflexive testing has been heavily researched, there are few studies analyzing subjective vestibular perception and to date no progress has been reported on motion perception in children. It is unknown if children perceive motion like adults creating a need for research comparing these age groups for thorough clinical profiles. This study adapted an adult psychophysics protocol for school-aged children and collected data on ten typically developing children and ten healthy adults. Participants rotated at various peak velocities and frequencies in a rotary chair and were asked to report their spatial orientation (i.e., how far around they rotated) …

Vestibular Migraine And Ssri Withdrawal: A Case Presentation, Grace Fairchild, Sarah Redding, Ashley Flagge

V&B Presentations

No abstract provided.

Fine And Gross Motor Skills Assessment, From A Caregiver's Perspective, In Children With Hearing Loss Using A Modified Ages And Stages Questionnaire (Asq-3), Steven M. Doettl, Patrick N. Plyler, Erin Plyler, Kelly R. Yeager, Leeann Hutker, Ginger Tallmadge, Aspen Gutknecht, Amy Becker

Journal of Early Hearing Detection and Intervention

Purpose: The purpose of this study was to determine if there is a significant difference on ASQ-3 (Ages and Stages Questionnaire version 3) Gross (ASQ G) and Fine (ASQ F) Motor scores between children with sensorineural hearing loss (SNHL) and children with normal hearing.

Methods: Data was gathered from the ASQ-3 as reported by parents/caregivers of 61 children (28 normal hearing children and 33 children with SNHL) ages 6-36 months. Results were averaged across the participants for both groups. Independent sample t-Tests were used to assess for any statistically significant difference in the ASQ scores between groups. Chi-square analysis …

The Relationship Between The Vestibulo-Ocular Reflex And Vestibular Perception In Trained Dancers Using Sinusoidal Harmonic Acceleration Testing, Diana Trinidad

Dissertations, 2020-current

Early studies have found that engaging in vestibular training, such as dance, may result in enhanced VOR suppression and changes in vestibular perception (e.g., lower sensations of vertigo) attributed to top-down modulation of subcortical neuronal networks and changes in the cerebellum. Dancers use spotting techniques to help control dizziness which involve holding their gaze on a visual object at eye level as they turn. As a result of this training, dancers become habituated to vestibular stimuli leading to lower VOR responses and decreased sensations of vertigo. This study investigated the relationship between the vestibulo-ocular reflex (VOR) and vestibular perception in …

Intertrial Coherence As A Measure Of Synchrony In Ocular Vestibular Evoked Myogenic Potentials And The Effect Of Gaze Angle, Sydney Brown

Dissertations, 2020-current

Ocular vestibular evoked myogenic potentials (oVEMPs) are produced by highly synchronous bursts of extraocular muscle activity in response to stimuli. These responses reflect utricular function and can be recorded using surface electromyography electrodes. Traditional analysis of oVEMPs is limited to time-domain waveform measurements, such as amplitude and latency of response peaks. Objective synchrony-based measures have not yet been applied to the analysis of oVEMPs, particularly in the comparison of synchrony across gaze angles. We followed the new time-frequency method of analysis developed by Clinard et al. (2022) that was successfully applied to cervical VEMPs to quantify response synchrony. Air-conducted oVEMPs …

The Impact Of Sport-Related Concussions On The Vestibular System Utilizing The Vestibular Ocular Motor Screening (Voms) Tool: A Systematic Review For Audiologists, Tina M. Ceriello

Dissertations, Theses, and Capstone Projects

Objective: This systematic review aims to analyze vestibular side effects of sport-related concussions (SRCs) based on differences such as age, gender, and/or sport when using the VOMS tool, and how audiologists may adapt practice for such individuals who have sustained SRCs.

Methods: A comprehensive search identified relevant articles using Google Scholar, ASHAWire, and other databases through the City University of New York (CUNY) Mina Rees Library website. Studies were included if SRCs were evaluated using the complete seven-item VOMS tool and had 25 or more participants. Studies were excluded if concussions were not sport-related, brain injuries were more severe than …

The Effect Of Dance Training On The Vor During The Video Head Impulse Test, Miranda Scalzo

Dissertations, 2020-current

The vestibulo-ocular reflex (VOR) is essential to maintain clear vision during head movements and can be assessed through the head impulse paradigm (HIMP). The suppression head impulse paradigm (SHIMP) is used to quantify the ability to suppress the VOR. MacDougall et. al. (2016) demonstrated that SHIMP gain is decreased compared to HIMP gain values in healthy adults. Previous research has supported the idea that vestibular trained athletes, such as dancers, have an enhanced capability of suppressing the VOR than those without vestibular training. The objective of this study was to assess VOR suppression capabilities at increased velocities, similar to what …

Assessing The Effects Of Emg Target Levels On Cvemp Thresholds, Melanie Johnson

Dissertations, 2020-current

Cervical vestibular evoked myogenic potentials (cVEMP) measure function of the saccule and inferior vestibular nerve by evoking inhibitory electromyogram (EMG) responses from the sternocleidomastoid muscle using short duration stimulation. Previous research has shown that cVEMP amplitude increases relative to EMG target level and latency remains constant, yet there is little to no research demonstrating the relationship between EMG target level and cVEMP threshold. The objective of this study is to determine the effects of EMG activation on cVEMP thresholds and assess whether patients who generate larger tonic EMG during cVEMP testing have lower cVEMP thresholds. cVEMPs were recorded in 20 …

Audiologic And Vestibular Testing And Interpretation Of Outcome Data: A Case Series, Kelly Sarhage, Antony Joseph

AuD Capstone Projects - Communication Sciences and Disorders

Abstract 1- Introduction: Nonorganic hearing loss is not typically associated with a detectable pathology.Both adults and children can present to the clinic with nonorganic hearing loss. It is often the result of psychosocial stressors and is more common in children, specifically 6 to 19 years old. Case Presentation: An 11-year-old child presented to the clinic with bilateral mild to moderate sensorineural hearing loss, but prior exams showed unilateral hearing loss on the left side. Discussion: Audiologists need to obtain a detailed case history, determine any underlying complications, inquire about additional auditory diagnoses, and employ objective testing to ascertain test reliability. …

Magnitude Estimates Of Angular Motion: Perception Of Speed And Spatial Orientation Across Visual And Vestibular Modalities, Erin Hernon

Dissertations, 2020-current

Both the vestibular system and optokinetic system generate conjugate eye movements in response to either movement of the head or movement of the visual surround. Both systems help to maintain gaze stability. While the VOR is most sensitive to input frequencies above .2 Hz, the optokinetic system helps maintain gaze stability at lower frequencies. Previous research on perceptual thresholds across the two sensory modalities shows that there are frequency-dependent differences between vestibular and visual perception. The purpose of this study is to extend previous vestibular psychophysics work by 1) comparing magnitude estimates from vestibular stimulation to visual stimulation across multiple …

Role Of Emg Monitoring On Cvemp Testing In Preschool Age Children, Brenna Murray

Dissertations, 2020-current

While cervical vestibular evoked myogenic potential (cVEMP) testing has largely been studied and practiced on the adult population, less is known about the best practices for performing cVEMPs on a pediatric population, especially in young children under the age of 5 years. Further, very young children (i.e., 2-3 years) often prefer to sit with their caregiver during the testing, yet there is very little data on how much electromyographic (EMG) activity a child generates if in a seated position as opposed to a supine position. The purpose of this study was to assess the role of EMG on cVEMP recordings …

Amplitude-Modulated Cvemp (Amcvemps) Versus Transient Cvemp Response Properties: Possible Implications, Andrew Thorne

Dissertations, 2020-current

Cervical vestibular evoked myogenic potentials (cVEMPs) elicited by steady-state amplitude-modulated (AM) tones yield different information than conventional cVEMPs elicited by transient tonebursts, such as signal-to-noise ratio (SNR) and phase coherence (PC). This study systematically examined the effects of tonic EMG activation on AMcVEMP response properties versus conventional transient cVEMPs. Thirty five young, healthy adults (ages 19–23) with normal audiograms and no known vestibular lesions participated in this study. AMcVEMPs were elicited with bone-conducted tones with a carrier frequency of 500 Hz and an amplitude modulation frequency of 37 Hz, and transient cVEMPs were elicited by 4-0-4 Blackman-gated 500 Hz tonebursts …

Temporal Modulation Transfer Functions Of Amplitude-Modulated Cervical Vestibular Evoked Myogenic Potentials In Young Adults, Kerri Lawlor

Dissertations, 2020-current

Cervical vestibular evoked myogenic potentials (cVEMPs) are widely used to evaluate saccular function in clinical and research applications. Typically, transient tonebursts are used to elicit cVEMPs. In this study, we used bone-conducted amplitude-modulated (AM) tones to elicit AMcVEMPs. This new approach allows the examination of phase-locked vestibular responses across a range of modulation frequencies. Currently, cVEMP temporal modulation transfer functions (TMTFs) are not well defined. The purposes of the present study were 1) to characterize the AMcVEMP TMTF in young, healthy individuals, 2) to compare AMcVEMP TMTFs across different analysis approaches, and 3) to determine the upper frequency limit of …

The Patterns And Prevalence Of Vestibular Disorders In Relation To Pediatric Concussions, Emma Vosniak

Williams Honors College, Honors Research Projects

INTRODUCTION: Concussions are a movement of the brain that can cause damage to the cells of the brain and any surrounding structures. One of the closest structures is the vestibular system, a part of the inner ear, controlling our balance and bodily movement. Though it is known that vestibular disorders and related symptoms are common after a concussion, there remains limited research regarding approaches to better address these disorders. STUDY AIM: The purpose of this study is to identify patterns regarding the prevalence, assessment, and treatment of vestibular disorders in pediatric patients who have sustained past concussions. METHODOLOGY: An online …

Vestibular Case Studies: A Case Of Cva And Vestibular Paroxysmia, Jennifer Banovic B.S., Nicholas Stanley Ph.D. Au.D.

AuD Capstone Projects - Communication Sciences and Disorders

Case 1:

Introduction: One of the leading causes of centrally based vestibular impairment is a cerebrovascular accident (CVA). Patients typically present with limb or facial weakness, dizziness and imbalance, impaired vision, and speech or language dysfunction, however, these symptoms can vary depending on the site of lesion. Case presentation: An 85-year-old female presented with dizziness, bilateral tinnitus, aural fullness, and aphasia, occurring after she suffered a CVA. Three months after the CVA, she was seen by a balance clinic for a videonystagmography (VNG) and audiologic evaluation. Discussion: CVAs can alter the blood supply to the inner ear and its nerve …

Objective Detection Of Vestibular Evoked Myogenic Potentials, Daniel J. Romero

Dissertations, 2020-current

Cervical and ocular vestibular evoked myogenic potentials (cVEMPs and oVEMPs, respectfully) are considered objective tests of vestibular function measured using surface electromyography (EMG). In addition, VEMPs are visually detected by an examiner, often requiring a high level of stimulation to the ear to easily visualize a waveform plotted across time. However, a high level of stimulation, like those used during routine VEMP testing, is problematic since it has been shown to be unsafe in children when compared to adults. Visual interpretation can also vary between examiners in cases of reduced vestibular function or when the level of required muscle contraction …

Dual Task Study Of Cognitive And Postural Interference: Development Of A Methodology For Use In Vestibular Disorders, Valerie Beacham

Dissertations, 2020-current

For patients with vestibular impairments, postural stability alone can be demanding but is more taxing when an individual’s attention is focused on both maintaining balance and a secondary/cognitive task simultaneously. Thus, dual task paradigms where balance must be maintained while performing postural and cognitive tasks concurrently provides an assessment on one’s attentional resources available for balance. Previous studies show varying levels of dual task effects in patients with vestibular loss with little consistency between studies regarding choice of balance and cognitive tasks. The purpose of this study was to assess the feasibility of a dual task paradigm using portable instrumentation …

Effect Of Sound Source Location And Spatial Hearing On The Vestibulo-Ocular Reflex (Vor), Mary Easterday

Theses and Dissertations (ETD)

Accurate measurement of the vestibulo-ocular reflex (VOR) is imperative in differential diagnosis of vestibular disorders and balance function. However, the assessment protocol faces a number of limitations, including the need to control for extra- vestibular sensory factors such as hearing. Previous research has shown that the use of an auditory stimulus can have a significant effect on functional measures of balance, and many have contributed effects to be the result of spatial hearing. However, no studies have directly assessed the effect of speaker location on the VOR nor investigated correlations of functional spatial hearing with the VOR. Therefore, the aims …

Induction Of Nocebo Effects By Verbal Suggestions During The Caloric Test, Abbey Weist

Dissertations, 2020-current

The caloric test is the most frequently performed vestibular diagnostic test and is considered the “gold-standard” for the assessment of the peripheral vestibular system. Using a warm or cool stimulus, the caloric test alters the temperature gradient in the vestibular system resulting in nausea and dizziness. The nocebo effect is a phenomenon that can occur when negative expectations result in negative effects. No study has examined whether expectations of nausea and dizziness during the caloric test enhance the experience of unwanted symptoms. The purpose of this investigation was to determine whether a nocebo response can be elicited during the caloric …

Vestibular Evoked Myogenic Potentials And Postural Control In Adults With Age-Related Hearing Loss, Steven Michael Doettl

Theses and Dissertations (ETD)

It is well-documented that auditory thresholds decrease with age, which can be referred to as Age-related hearing loss (ARHL). ARHL is one of the most common conditions affecting older adults and is associated with several conditions including decreased postural stability and falls. Age-related changes to auditory function have been attributed to, through histopathological study, specific degradation of the sensory, supporting, and afferent structures of the cochlea. Vestibular function, as measured through vestibular evoked myogenic potentials (VEMPs) also show decreases with age. VEMPs are a measurement of evoked potentials generated by auditory stimulation of the utricle and saccule measured through a …

Inner Ear Disorders Associated With Hearing And Vestibular Loss: A Case Series, Kelly Retzlaff

AuD Capstone Projects - Communication Sciences and Disorders

Introduction: Sudden sensorineural hearing loss (SSNHL), a hearing loss of at least 30 dB at three or more consecutive frequencies within a 72-hour period, is typically idiopathic. Potential causes are thought to include viral, autoimmune, vascular, neurologic, neoplastic, or traumatic origins. Treatment consists of steroids. Poor patient follow up and compliance with rehabilitation negatively affect outcomes. Poor follow-up also results in the inadequate medical documentation of outcomes. Case Presentation: a 20-year old female presented with unilateral SSNHL with high-frequency tinnitus in the right ear. Her audiological history includes a known profound hearing loss in the left ear, as well as, …

Cervical Vestibular-Evoked Myogenic Potentials (Cvemps): "Differentiation Of Inter-Neck Emg Symmetry Between Children And Adults", Ellen Jones

Senior Honors Projects, 2010-2019

A cervical Vestibular-Evoked Myogenic Potential (cVEMP) is one of the few objective vestibular diagnostic tests available for pediatric populations. This test evaluates the functionality of the saccule end organ through an inhibitory reflex on the sternocleidomastoid (SCM) muscle that inhibits the level of electromyographic (EMG) activity (Wiener-Vacher, 2013). Because the saccule response is measured as an inhibition of EMG in the SCM, it is imperative that the SCM have a tonic contraction prior to eliciting the response and that the contraction of the SCM is equal on the right and left sides. It is generally accepted that young, healthy adults …

The Feasibility Of Standardized Cognitive Assessments For Vestibular Patients, Brynn Morales

Senior Honors Projects, 2010-2019

Vestibular dysfunction, or impairments in the inner ear and/or brain structures that process sensory information and help control balance, has a high correlation with cognitive deficits, or problems with mental processes. This relationship negatively affects daily activities and quality of life in persons that live with vestibular dysfunction. Though there is sufficient research proving the relationship, few studies have applied that information in ways to better help the population with vestibular dysfunction. The purpose of this study was to assess the feasibility of a cognitive assessment battery (a set of correlated assessments delivered in one session) tailored to measuring performance …

Does Emg Monitoring In A Cvemp Matter?, Kimberly Fleck

Senior Honors Projects, 2010-2019

To determine if EMG monitoring or the use of amplitude normalization would significantly reduce the amplitude variability and amplitude asymmetry of the cVEMP in children ages 3 and under, we first needed to create a control group with young, healthy adults to compare the pediatric group to. We also wanted to replicate earlier studies that showed EMG monitoring and amplitude normalization does not have an impact on the VEMP in young, healthy adults. We tested two different positions, sitting and supine. Supine is the optimal position to generate EMG, but we wanted to have control data in case the pediatric …

Methods And Professionals Involved In Evaluating Postural Control In The Autism Spectrum Disorder Population: A Systematic Review, Christina Melora

Dissertations, Theses, and Capstone Projects

The objective of this systematic review was to determine the methods in which postural stability and control are being quantified in persons with Autism Spectrum Disorder (ASD), with what instrumentation and which healthcare professionals are included in this process. It is well studied that persons with Autism Spectrum Disorder (ASD), which now include those with Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS) and Asperger Disorder, often suffer from vestibular modulation abnormalities (Rogers & Ozonoff, 2005; American Psychiatric Association, 2013.) These individuals may present with either an under- or over-responsiveness to vestibular inputs resulting in a variety of repetitive behaviors or …

Differential Effects Of Cdh23753a On Auditory And Vestibular Functional Aging In C57bl/6j Mice, Bruce E. Mock, Sarath Vijayakumar, Jessica Pierce, Timothy A. Jones, Sherri M. Jones

Department of Special Education and Communication Disorders: Faculty Publications

The C57BL/6J (B6) mouse strain carries a cadherin 23 mutation (Cdh23^753A, also known as Ahl), which affects inner ear structures and results in age-related hearing loss. The B6.CAST strain harbors the wild type Cdh23 gene, and hence, the influence of Ahl is absent. The purpose of the present study was to characterize the effect of age and gender on gravity receptor function in B6 and B6.CAST strains and to compare functional aging between auditory and vestibular modalities. Auditory sensitivity declined at significantly faster rates than gravity receptor sensitivity for both strains. Indeed, vestibular functional aging was …