J. Javier Mata⁽¹⁾, Jaime Marco ⁽²⁾, Juan M. Jiménez ⁽³⁾, Amparo Postigo⁽⁴⁾, Francisco Delgado Moreno^(5)
(1)Department of Neuro-otology. Centro Audiológico, S.L. - Sevilla. Spain
⁽²⁾Department of Otolaryngology. University Hospital - Valencia. Spain
⁽³⁾Department of Otolaryngology. "V. Valme" University Hospital - Sevilla. Spain
⁽⁴⁾Department of Audiology. Centro Audiologico, S.L - Sevilla. Spain
⁽⁵⁾Department of Otolaryngology. "V.del Rocio" University Hospital - Sevilla. Spain

	[Physiology]	[Otorhinolaryngology]

INTRODUCTION

For more than twenty years ago, work is being done on the objective register of an evoked response of the vestibular branch of VIII pair which can be accurately measured, as it is the one obtained after sound stimulation and registering of bioelectrical activity by means of surface electrodes.

The relationship between the register of these responses and the nervous activity in the vestibular nerve as well as its different nuclei and minor vestibular neurones, has been demonstrated with animals ⁽¹⁾. The main problems stem from both the adaptation of the stimulus to be employed and the achievement of a reliable response above the numerous contaminated registers ⁽²⁾. Nevertheless, up to now the short activity and middle latency register after angular acceleration impulses, seems to be the most reliable ⁽³⁾.

Another major problem to be born in mind is the sole origin of the obtained response as well as and mainly, the implication of other kinds of responses in the obtained register ⁽⁴⁾.

Highly controversial as these types of registers are, our aim here is to show and obtained bioelectrical response based on the angular stimulation technique. The usual methodology for electronystagmography with caloric stimulation has been used, and we have tried to neglect all the polluting responses that, due to other types of non-vestibular stimuli, could interfere with the responses to be analysed. These will be compared to the ones obtained by other authors who used an angular acceleration technique of stimulation.

Discussion Board

Any Comment to this presentation?

[ABSTRACT] [INTRODUCTION] [MATERIAL AND METHODS] [RESULTS] [IMAGES AND TABLES] [DISCUSSION] [REFERENCES] [Discussion Board]

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	[Physiology]	[Otorhinolaryngology]

J. Javier Mata, Jaime Marco , Juan M. Jiménez , Amparo Postigo, Francisco Delgado Moreno
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Last update: 7/01/00