Patent attributes
A method is provided including disposing central electrodes outside and in electrical contact with a skull of a head of a subject identified as at risk of or suffering from Alzheimer's disease, within one cm of a sagittal midplane of the skull; and disposing peripheral electrodes outside and in electrical contact with the skull, superior to an orbitomeatal plane of the skull and inferior to a first plane midway between the orbitomeatal plane and a cranial vertex of the skull, the first plane parallel to the orbitomeatal plane. The subject is treated by clearing amyloid beta, tau protein, and/or metal ions from brain parenchyma to a subarachnoid space, by activating control circuitry to apply respective currents between one or more of the central electrodes and two or more of the peripheral electrodes, and configure the central electrodes as cathodes and the peripheral electrodes as anodes. Other embodiments are also described.
