Methods and devices for determining brain state

Details Methods and devices for determining brain state Methods and devices for determining brain state

A - Human Necessities

61

N

A61N 1/08 (2006.01)

Patent

CA 2508235

The present invention relates to methods and devices for determining the state of a neural system. In one embodiment, a plurality of stimuli to the system can be delivered to the system, and then the resulting respective responses ( R1, R2, R3) can be analyzed to determine whether the system state is static, or whether it is undergoing dynamic changes. In another aspect of the invention, a single stimulus having a plurality of components can be administered, and the responses to each component can be contrasted and compared to determine the state of the neural system. In each case, this information can be used to predict the occurrence of neural perturbations or episodes associated with a change in the state of the neural system.

L'invention concerne des procédés et des dispositifs permettant de déterminer l'état d'un système nerveux. Dans une forme de réalisation, on applique au système une pluralité de stimuli, et les réponses respectives obtenues sont analysées afin de déterminer si le système est statique ou si des changements dynamiques sont en cours. Dans un autre aspect de l'invention, on administre un stimulus unique comportant une pluralité de composants, et les réponses obtenues pour chaque composant sont mises en évidence et comparées afin de déterminer l'état du système nerveux. Dans les deux cas, les données peuvent servir à prédire des perturbations nerveuses ou des épisodes associés à un changement de l'état du système nerveux.

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