Cortical Potentials Evoked by Horizontal Rotatory Stimulation: The Effects of Angular Acceleration

Kenmochi, Mutsumi; Ohashi, Toru; Nishino, Hirohito; Sato, Shigeki

doi:10.1080/00016480310000728

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…Although their exact latency differ between studies, VestEPs around 300 ms have consistently been reported after passive whole-body rotations (32,185) and translations (33). For example, whole-body rotations in the yaw plane evoked a vertex negative component with a peak latency near 300 ms (32,185).…”

Section: Responses At 300-500 Msmentioning

confidence: 97%

“…Various responses have been described within the 300–500 ms time window after active ( 58 , 59 ) and passive body rotations ( 32 , 44 , 47 – 49 , 51 , 52 , 171 , 174 , 176 , 185 ), as well as after body translation ( 33 , 166 , 167 , 186 ). A seminal study compared human responses to animal responses that were already accepted as vestibular in origin ( 48 ).…”

Section: Late Latency Vestibular-evoked Potentialsmentioning

confidence: 99%

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Vestibular-Evoked Cerebral Potentials

2021

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The human vestibular cortex has mostly been approached using functional magnetic resonance imaging and positron emission tomography combined with artificial stimulation of the vestibular receptors or nerve. Few studies have used electroencephalography and benefited from its high temporal resolution to describe the spatiotemporal dynamics of vestibular information processing from the first milliseconds following vestibular stimulation. Evoked potentials (EPs) are largely used to describe neural processing of other sensory signals, but they remain poorly developed and standardized in vestibular neuroscience and neuro-otology. Yet, vestibular EPs of brainstem, cerebellar, and cortical origin have been reported as early as the 1960s. This review article summarizes and compares results from studies that have used a large range of vestibular stimulation, including natural vestibular stimulation on rotating chairs and motion platforms, as well as artificial vestibular stimulation (e.g., sounds, impulsive acceleration stimulation, galvanic stimulation). These studies identified vestibular EPs with short latency (<20 ms), middle latency (from 20 to 50 ms), and late latency (>50 ms). Analysis of the generators (source analysis) of these responses offers new insights into the neuroimaging of the vestibular system. Generators were consistently found in the parieto-insular and temporo-parietal junction—the core of the vestibular cortex—as well as in the prefrontal and frontal areas, superior parietal, and temporal areas. We discuss the relevance of vestibular EPs for basic research and clinical neuroscience and highlight their limitations.

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Section: Responses At 300-500 Msmentioning

confidence: 97%

Section: Late Latency Vestibular-evoked Potentialsmentioning

confidence: 99%

Vestibular-Evoked Cerebral Potentials

2021

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“…Complementary to neuroimaging experiments using PET and MRI, a few EEG studies on the processing of vestibular input in humans have been performed over the last decades [11,14,18,28,55]. These studies tried to exploit the high temporal resolution of the EEG to investigate the neural cortical correlates of vestibular 4 .…”

Section: Introductionmentioning

confidence: 99%

Vestibular mapping of the naturalistic head-centered motion spectrum

Ertl

Eulenburg

Woller

et al. 2023

Preprint

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BACKGROUND: Naturalistic head accelerations can be used to elicit vestibular evoked potentials (VestEPs). These potentials allow for analysis of cortical vestibular processing and its multi-sensory integration with a high temporal resolution. METHODS: We report the results of two experiments in which we compared the differential VestEPs elicited by randomized translations, rotations, and tilts in healthy subjects on a motion platform. RESULTS: An event-related potential (ERP) analysis revealed that established VestEPs were verifiable in all three acceleration domains (translations, rotations, tilts). A further analysis of the VestEPs showed a significant correlation between rotation axes (yaw, pitch, roll) and the amplitude of the evoked potentials. We found increased amplitudes for rotations in the roll compared to the pitch and yaw plane. A distributed source localization analysis showed that the activity in the cingulate sulcus visual (CSv) area best explained direction-dependent amplitude modulations of the VestEPs, but that the same cortical network (posterior insular cortex, CSv) is involved in processing vestibular information, regardless of the motion direction. CONCLUSION: The results provide evidence for an anisotropic, direction-dependent processing of vestibular input by cortical structures. The data also suggest that area CSv plays an integral role in ego-motion perception and interpretation of spatial features such as acceleration direction and intensity.

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“…The masses in this location can be a real diagnostic challenge because of a nonspecific clinical presentation and the lack of experience of the clinician or pathologist [2]. SCAP is an extremely rare benign tumor that originates from modified apocrine sweat (ceruminous) glands with extensive papillary growth of epithelial elements down into dermis [3]. In 1894, Haugh described the first ceruminous gland tumor of the cartilaginous segment of the EAC [4].…”

Section: Introductionmentioning

confidence: 99%

Syringocystadenoma Papilliferum of the Bony External Auditory Canal: A Rare Tumor in a Rare Location

Arechvo

Balseris

Neverauskiene

et al. 2013

Case Reports in Otolaryngology

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Tumors originating from ceruminous glands are rare lesions of the external auditory canal. The lack of specific clinical and radiological signs makes their diagnosis challenging. We report the case of an exceptionally rare benign tumor, a syringocystadenoma papilliferum (SCAP), in an atypical location in the bony segment of the external auditory canal with uncommon clinical signs. The special traits of the case included the following: the most lateral component of the tumor was macroscopically cystic and a granular myringitis with an obstructing keratin mass plug was observed behind the mass. The clinical, audiological, radiological, and histological characteristics of the neoplasm are consequently presented. Intraoperative diagnosis of the epidermal cyst was proposed. The final diagnosis of SCAP was determined only by histological analysis after the surgical excision. The educational aspects of the case are critically discussed.

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Cortical Potentials Evoked by Horizontal Rotatory Stimulation: The Effects of Angular Acceleration

Abstract: We suggest that an angular acceleration of 15 degrees/s2 is optimal for clinical examinations.

Cited by 7 publications

References 6 publications

Vestibular-Evoked Cerebral Potentials

Vestibular-Evoked Cerebral Potentials

Vestibular mapping of the naturalistic head-centered motion spectrum

Syringocystadenoma Papilliferum of the Bony External Auditory Canal: A Rare Tumor in a Rare Location

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