System for Processing and Simulation of Brain Signals

Processing and simulation of brain signals from stochastic models have allowed going deep into the study of brain function during sleeping and pathological situations, it had also facilitated the quantification and assessment of the effect of different drugs. In order to make well know with this type of signals is necessary to have highly specialized and expensive equipments, it makes difficult the training and learning processes of medical helper and biomedical engineers. Virtual laboratories have been used successfully in learning processes in a biomedical engineering field because of their educational benefits and their low economic cost. This paper presents a virtual laboratory developed in Matlab (R), which facilitates the understanding and usefulness of the techniques to processing signals from brain origin. To implement the application, EEG signals have been modelled and real intracerebral and cortical signals recordered during surgical procedures also have been used. Besides the application allows to assess characteristics of brain signals, it allows also to evaluate the usefulness of processing techniques used in clinical practice.