Method and arrangement for the enlargement of the signal - noise ratio of evoked and event correlated potentials in the compartments of a neural activity

摘要

The invention provides a method and a corresponding arrangement for the enlargement of the signal - noise ratio of evoked potential - signals and event correlated potential - signals of a neural activity at. The method has the following steps:– a transformation of individual sweep - signals of the neural activity for the production of the instantaneously phases of the individual sweep - signals from an original zeitberecih,– a time illustration of the instantaneously phases in a 2d - individual sweep - matrix,– a change in the momentarily phases in such a way that the circular variance along at least one phases track in the 2d - individual sweep - matrix is reduced and– a reverse transformation with the changed instantaneously phases in the original time range for the formation of phases regularized individual sweep - signals.The present invention offers the advantage that, by means of the phases regularization the signal - noise ratio of evoked potential - signals and event correlated potential - signals of a neural activity is significantly improved.