Abstract: An apparatus for electrical brain stimulation comprises a two dimensional electrode array designed to be implanted at the surface of the cortex of a person, said cortex having neural pre-identified nodes and including healthy cortical tissue and damaged cortical tissue, said damaged cortical tissue having at least one parameter of cortical waves which is different from parameter of healthy cortical tissue, said at least one parameter being one of cortical wave propagation speed, amplitude and frequency, said electrode array including electrodes for emitting stimulation electrical signals in the cortex and measuring electrical cortical waves in the cortex, and said electrode array being designed to cover at least part of said healthy cortical tissue and said damaged cortical tissue.

Abstract: An apparatus for electrical brain stimulation comprises a two dimensional electrode array designed to be implanted at the surface of the cortex of a person, said cortex having neural pre-identified nodes and including healthy cortical tissue and damaged cortical tissue, said damaged cortical tissue having at least one parameter of cortical waves which is different from parameter of healthy cortical tissue, said at least one parameter being one of cortical wave propagation speed, amplitude and frequency, said electrode array including electrodes for emitting stimulation electrical signals in the cortex and measuring electrical cortical waves in the cortex, and said electrode array being designed to cover at least part of said healthy cortical tissue and said damaged cortical tissue

Abstract: A method for cortex stimulation is disclosed which may include the steps of collecting electric signals by a control system from the cortex through an electrode array; determining signals by a virtual neural field having a virtual array corresponding the electrode array, the virtual array receiving the collected signals as an input and the virtual neural field being adapted to control the frequency spectrum of neural activity in the cortical target, each stimulation signal being determined by a value of the virtual potential at each point of the virtual array; and emitting the stimulation signals in the cortex through the electrode array.

Abstract: A method for cortex stimulation is disclosed which may include the steps of collecting electric signals by a control system from the cortex through an electrode array; determining signals by a virtual neural field having a virtual array corresponding the electrode array, the virtual array receiving the collected signals as an input and the virtual neural field being adapted to control the frequency spectrum of neural activity in the cortical target, each stimulation signal being determined by a value of the virtual potential at each point of the virtual array; and emitting the stimulation signals in the cortex through the electrode array.