Jun Maruta
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View article: Potential lesson from a model-based exploration on treatment effect heterogeneity of mal de débarquement syndrome
Potential lesson from a model-based exploration on treatment effect heterogeneity of mal de débarquement syndrome Open
Background A central vestibular neural mechanism known as velocity storage may be inappropriately conditioned in mal de débarquement syndrome (MdDS), a rare chronic vestibular disorder with a continuous false sensation of self-motion descr…
View article: On labyrinthine function loss, motion sickness immunity, and velocity storage
On labyrinthine function loss, motion sickness immunity, and velocity storage Open
Keywords: cerebellar nodulus, mal de débarquement, nystagmus, semicircular canals, space flight, spatial orientation, vestibular habituation, vestibulo-ocular reflex (VOR)
View article: Symptom reduction in mal de débarquement syndrome with attenuation of the velocity storage contribution in the central vestibular pathways
Symptom reduction in mal de débarquement syndrome with attenuation of the velocity storage contribution in the central vestibular pathways Open
Background The velocity storage mechanism of the central vestibular system is closely associated with the vestibulo-ocular reflex (VOR), but also contributes to the sense of orientation in space and the perception of self-motion. We postul…
View article: Dual statistical models link baseline visual attention measure to risk for significant symptomatic concussion in sports
Dual statistical models link baseline visual attention measure to risk for significant symptomatic concussion in sports Open
Aim: Athletic pre-season testing can establish functional baseline for comparison following concussion. Whether impacts of future concussions may be foretold by such testing is little known. Materials & methods: Two sets of models for a si…
View article: Lasting alteration of spatial orientation induced by passive motion in rabbits and its possible relevance to mal de débarquement syndrome
Lasting alteration of spatial orientation induced by passive motion in rabbits and its possible relevance to mal de débarquement syndrome Open
Background Mal de débarquement syndrome (MdDS) is a chronic disorder of spatial orientation with a persistent false sensation of self-motion, whose onset typically follows prolonged exposure to passive motion of a transport vehicle. Develo…
View article: The Scientific Contributions of Bernard Cohen (1929–2019)
The Scientific Contributions of Bernard Cohen (1929–2019) Open
Throughout Bernard Cohen's active career at Mount Sinai that lasted over a half century, he was involved in research on vestibular control of the oculomotor, body postural, and autonomic systems in animals and humans, contributing to our u…
View article: Concussion Disrupts Normal Brain White Matter Microstructural Symmetry
Concussion Disrupts Normal Brain White Matter Microstructural Symmetry Open
Injuries and illnesses can alter the normal bilateral symmetry of the brain, and determining the extent of this disruption may be useful in characterizing the pathology. One way of quantifying brain symmetry is in terms of bilateral correl…
View article: Disrupted White Matter Microstructure of the Cerebellar Peduncles in Scholastic Athletes After Concussion
Disrupted White Matter Microstructure of the Cerebellar Peduncles in Scholastic Athletes After Concussion Open
Concussion, or mild traumatic brain injury (mTBI), is a major public health concern, linked with persistent post-concussive syndrome, and chronic traumatic encephalopathy. At present, standard clinical imaging fails to reliably detect trau…
View article: Concussion Subtype Identification With the Rivermead Post-concussion Symptoms Questionnaire
Concussion Subtype Identification With the Rivermead Post-concussion Symptoms Questionnaire Open
Classifying concussion in key subtypes according to presenting symptomatology at an early post-injury stage is an emerging approach that may allow prediction of clinical trajectories and delivery of targeted treatments. The Rivermead Post-…
View article: Association of Visual Tracking Metrics With Post-concussion Symptomatology
Association of Visual Tracking Metrics With Post-concussion Symptomatology Open
Attention impairment may provide a cohesive neurobiological explanation for clusters of clinical symptoms that occur after a concussion; therefore, objective quantification of attention is needed. Visually tracking a moving target is an at…
View article: Visual Tracking in Development and Aging
Visual Tracking in Development and Aging Open
A moving target is visually tracked with a combination of smooth pursuit and saccades. Human visual tracking eye movement develops through early childhood and adolescence, and declines in senescence. However, the knowledge regarding perfor…
View article: Frequency Responses to Visual Tracking Stimuli May Be Affected by Concussion
Frequency Responses to Visual Tracking Stimuli May Be Affected by Concussion Open
Human visual tracking performance is known to be reduced with an increase of the target's speed and oscillation frequency, but changes in brain states following a concussion may alter these frequency responses. The goal of this study was t…
View article: Degradation of Binocular Coordination during Sleep Deprivation
Degradation of Binocular Coordination during Sleep Deprivation Open
To aid a clear and unified visual perception while tracking a moving target, both eyes must be coordinated, so the image of the target falls on approximately corresponding areas of the fovea of each eye. The movements of the two eyes are d…
View article: Chronic Post-Concussion Neurocognitive Deficits. II. Relationship with Persistent Symptoms
Chronic Post-Concussion Neurocognitive Deficits. II. Relationship with Persistent Symptoms Open
Individuals who sustain a concussion may continue to experience problems long after their injury. However, it has been postulated in the literature that the relationship between a concussive injury and persistent complaints attributed to i…
View article: Chronic Post-Concussion Neurocognitive Deficits. I. Relationship with White Matter Integrity
Chronic Post-Concussion Neurocognitive Deficits. I. Relationship with White Matter Integrity Open
We previously identified visual tracking deficits and associated degradation of integrity in specific white matter tracts as characteristics of concussion. We re-explored these characteristics in adult patients with persistent post-concuss…