Michael J Cevette

Michael J Cevette
Mayo Foundation for Medical Education and Research | MMS · Department of Aerospace Medicine

Doctor of Philosophy

About

44
Publications
5,535
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748
Citations
Citations since 2017
9 Research Items
348 Citations
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20172018201920202021202220230204060
20172018201920202021202220230204060

Publications

Publications (44)
Article
BACKGROUND: Virtual reality (VR) is an effective technique to reduce cost and increase fidelity in training programs. In VR, visual and vestibular cues are often in conflict, which may result in simulator-induced motion sickness. The purpose of this study is to investigate the integration of Galvanic Vestibular Stimulation (GVS) with a VR flight tr...
Article
Full-text available
Background Vestibular flight illusions remain a significant source of concern for aviation training. Most fixed-based simulation training environments, including new virtual reality (VR) technology, lack the ability to recreate vestibular flight illusions as vestibular cues cannot be provided without stimulating the vestibular end organs. Galvanic...
Article
BACKGROUND: Severe acute hypoxia results in a rapid deterioration of cognitive functioning and thus poses a risk for human operations in high altitude environments. This study aimed at investigating the effects of oxygen system failure during a high-altitude high-opening (HAHO) parachute jump scenario from 30,000 ft (9144 m) on human physiology and...
Article
The need exists for a device that can rapidly and accurately assess mild cognitive impairment (MCI). Because the link between oculometrics and cognition is well‐documented, the Oculo‐Cognitive Addition Test (OCAT) was developed which tracks users’ eye movements as they complete a simple mental addition test. OCAT consisted of 12 trials of summing t...
Article
Full-text available
Oxygen is viewed in medicine as the sole determinant of tissue oxygenation, though carbon dioxide homeostasis is equally important and clinically often ignored. The aims of this study were as follows: (a) to examine the effects of different acute hypoxic conditions on partial pressure of arterial oxygen ( Pa O 2 ), arterial oxygen saturation of...
Article
Full-text available
In this paper, we focus on the application of oculometric patterns extracted from raw eye movements during a mental workload task to assess changes in cognitive performance in healthy youth athletes over the course of a typical sport season. Oculometric features pertaining to fixations and saccades were measured on 116 athletes in pre- and post-sea...
Article
Full-text available
There is a need for a practical objective measure to detect mild changes in cognitive performance as early signs of concussion in youth or other special populations. In this paper, we propose a novel correlation model that establishes the relationship between oculometrics extracted from raw eye movements during a mental workload task and cognitive...
Article
The remarkable ability of the body to maintain balance is the result of central nervous system integration of sophisticated inputs from the vestibular, visual, and somatosensory systems. Strategies by patients with balance dysfunction are aphysiologic when their performance is relatively better on more difficult conditions of sensory conflict than...
Article
Objective: Labyrinthine concussion due to a postauricular gunshot wound has not been well reported. Design: Retrospective chart review. Study sample: We describe an otherwise healthy 22-year-old male who received a gunshot wound to the left mastoid and subsequently reported hearing loss and rotational vertigo. Results: Audiometric testing de...
Article
Literature investigating otolith reflexes in patients with vestibular migraine (VM) is variable and primarily describes the descending saccular pathway. This research aimed to study ocular vestibular evoked myogenic potential (oVEMP) and cervical vestibular evoked myogenic potential (cVEMP) prevalence and response characteristics in patients with s...
Article
Introduction: Visual performance impairment after hypoxia is well recognized in military and civilian aviation. The aims of this study were: 1) to assess oculometric features such as blink metrics, pupillary dynamics, fixations, and saccades as cognitive indicators of early signs of hypoxia; and 2) to analyze the impact of different hypoxic condit...
Patent
Full-text available
The present invention relates to systems and techniques for stimulating a user. For example, materials and methods for manipulating nystagmus and the related vestibular system with coupling of galvanic vestibular stimulation (GVS) and visual cueing are provided herein. Use of GVS within the present invention may be applied to simulation, alleviatin...
Article
Simulator sickness causes vestibulo-autonomic responses that increase sympathetic activity and decrease parasympathetic activity. The purpose of the study was to quantify these responses through electrogastrography and cardiac interbeat intervals during flight simulation. There were 29 subjects that were randomly assigned to 2 parallel arms: (1) oc...
Article
Hypoxic incapacitation continues to be a significant threat to safety and operations at high altitude. Noninvasive neurocognitive performance testing is desirable to identify presymptomatic cognitive impairment, affording operators at altitude a tool to quantify their performance and safety. There were 25 subjects enrolled in this study. Cognitive...
Article
Full-text available
Asymmetric hearing loss (AHL) can be an early sign of vestibular schwannoma (VS). However, recognizing VS-induced AHL is challenging. There is no universally accepted definition of a "medically significant pure-tone hearing asymmetry," in part because AHL is a common feature of medically benign forms of hearing loss (e.g., age- or firearm-related h...
Article
Galvanic stimulation has long been used as a nonmechanical means of activating the vestibular apparatus through direct action on the vestibular nerve endings. This stimulation has been reported to be safe, but no studies have examined the potential changes in the corresponding cochlear receptors. The aim of the present study was to evaluate the eff...
Article
Despite improvement in the computational capabilities of visual displays in flight simulators, intersensory visual-vestibular conflict remains the leading cause of simulator sickness (SS). By using galvanic vestibular stimulation (GVS), the vestibular system can be synchronized with a moving visual field in order to lessen the mismatch of sensory i...
Article
Objective: 1) Report a novel method for measuring vestibular sensations of movement induced by galvanic vestibular stimulation (GVS). 2) Introduce a new approach to quantify vestibular symptoms in patients with vertigo and related disorders. Method: We created a software program using a Logitech wireless joystick to measure and display in three dim...
Article
Superficial siderosis of the central nervous system (SSCN) results after chronic subarachnoid hemorrhage. Consequent demyelination, particularly of the cochleovestibular nerve and cerebellum, causes auditory-vestibular dysfunction. Predominant symptoms include progressive sensorineural hearing loss, imbalance, and ataxia. Despite characteristic aud...
Article
A few studies in the literature have reported postural changes with hypoxia, but none have quantified the magnitude of change. Further understanding of this condition could have implications for patients at risk for falls, individuals undergoing acute altitude exposure, and pilots and commercial passengers. The objective of this study was to evalua...
Article
This case study details the evaluation, explantation, and subsequent reimplantation of a cochlear implant (CI) recipient with an unusually deep electrode array insertion. Although the positive value of sufficiently deep insertion and the effect of insertion variability have been researched, there are few data available that illustrate the detriment...
Article
Full-text available
The arterial pulse has historically been an essential source of information in the clinical assessment of health. With current sphygmomanometric and oscillometric devices, only the peak and trough of the peripheral arterial pulse waveform are clinically used. Several limitations exist with peripheral blood pressure. First, central aortic pressure i...
Article
Recent studies in noise-induced and idiopathic sensorineural hearing loss have suggested that magnesium supplementation may lessen both hearing loss and the severity of tinnitus in patients. Further epidemiological evidence indicates that all age groups of Americans fall short of the recommended daily allowance for magnesium by 100 mg daily. The pu...
Article
Considered a rare disorder, superficial siderosis of the central nervous system (SSCN) has become more frequently diagnosed in recent years. As it is characterized by progressive sensorineural hearing loss, patients' needs may surpass the capability of hearing aid technology. Despite the retrocochlear nature of the disorder, patients have undergone...
Article
Physiologic measures that range from evaluation of the status of the middle ear to myogenic potentials linked to vestibular stimulation are important supplements to behavioral measures of hearing. All of these measures are influenced by medications that may be used to treat symptoms or otherwise help to manage patients who present with multiple han...
Article
Full-text available
The last several decades have revealed clinical and experimental data regarding the importance of magnesium (Mg) in hearing. Increased susceptibility to noise damage, ototoxicity, and auditory hyperexcitability are linked to states of Mg deficiency. Evidence for these processes has come slowly and direct effects have remained elusive because plasma...
Article
To compare hypothetical costs for identification of acoustic tumors when using magnetic resonance imaging with gadolinium Gd 64 (MRI-(64)Gd) as a sole diagnostic test and when using auditory brainstem response (ABR) testing followed by MRI-( 64)Gd (ABR + MRI-(64)Gd) for those with positive ABR findings. Retrospective review of the medical records o...
Article
Outer hair cell (OHC) metabolism is blocked by cisplatin. Concurrent changes in the renal handling of magnesium occur because of the damage cisplatin causes to the renal proximal tubule cells within the thick ascending loop of Henle. Although there is no evidence of cisplatin within the OHCs, there are significant levels of intracellular calcium, t...
Article
To determine disease concordancy in the first identical twin with corticobasal degeneration. The patients were 63-year-old, erythrocyte antigen-confirmed monozygotic male twins who were clinically discordant for progressive apraxia caused by corticobasal degeneration. Neuropsychologic and kinesiologic testing, magnetic resonance imaging, and positr...
Article
The remarkable ability of the body to maintain balance is the result of central nervous system integration of sophisticated inputs from the vestibular, visual, and somatosensory systems. Strategies by patients with balance dysfunction are aphysiologic when their performance is relatively better on more difficult conditions of sensory conflict than...
Article
Sudden unilateral hearing loss may result from etiologies affecting cochlea, eighth nerve, or more central auditory tracts. Two case studies are presented in which the measurement of otoacoustic emissions helped rule out outer hair cell cochlear pathology. In both cases, the final diagnosis was sudden unilateral hearing loss associated with multipl...
Article
Behavioral audiometry may be of limited value for those patients who have incurred significant brain injury and remain unresponsive to auditory stimuli. Even the more "objective" tests such as auditory brainstem response (ABR) and acoustic reflex testing may be inadequate tools to assess peripheral auditory function when significant brainstem injur...
Article
The implantati on of a cochlear electronic prosthetic device is an accept able means of improving the communication ability of pre- and postlinguaIIy deafened children and adults. A significant number of patients in this series are in the senior citizen age group. It has been beneficial in improving communication ability in selected profoundly deaf...
Article
Tinnitus, a common complaint, reportedly affects more than 37 million Americans. Most often, it is associated with a sensorineural hearing loss in the high-frequency range. Tinnitus, however, is a symptom and not a disease. Complacency about this symptom complex may cause physicians to overlook a severe underlying pathologic process. Patients with...
Article
Thirty-six weanling guinea pigs were fed either a low (600 ppm) or normal (3000 ppm) diet of magnesium for 8 weeks. One half of each diet group received intramuscular injections of magnesium-depleting drugs, furosemide and gentamicin. The other half were controls and received equal intramuscular injections of saline. Auditory brainstem responses we...
Article
Delayed intervention in hearing-impaired infants may diminish ultimate speech and language development. A program for identifying hearing-impairment using ABR was initiated for neonates in the intensive care nursery. Hearing in 81 neonates whose birth weights ranged from 800 to 3980 grams was tested using ABR. Infants were tested when they achieved...
Article
A rationale is given for measuring acoustic reflexes in order to establish an estimation of cochlear funtion. Anatomical and physiological descriptions of the normal middle ear are outlined. Particular attention is paid to changes of the acoustic transmitting properties of the middle ear due to middle ear muscle contractions to acoustic stimuli, an...
Article
A rationale for measuring middle ear function in the speech clinic is given. Anatomical and physiological descriptions of the norman middle ear and four pathological conditions are described in light of present measurement techniques. Emphasis is placed on these measurements as routine procedures for the known or suspected cases of otitis media see...
Article
Hearing conservation programs are often plagued with a lack of follow-through at the conclusion of identification audiometry. The procedures and results of the Lincoln Institute's hearing conservation program are reported. The results indicate some of the inherent problems associated with screening techniques. In addition, they help demonstrate the...

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