1. A method of detecting brain electrical patterns indicative of a neurological event comprising a) positioning at least two electrodes on the scalp or between the scalp and the cranium of a mammal; b) monitoring with said at least two electrodes patterns of brain electrical patterns of the mammal's brain to identify the presence or onset of a neurological event; c) identifying the location of the brain electrical patterns indicative of a neurological event; wherein each of said at least two electrodes have at least two poles comprising conductive elements configured concentrically and wherein each of said at least two electrodes is positioned wholly outside the cranium.