1. A system that identifies a focal area of abnormal brain interactions in a subject, the system comprising: a non-transitory memory storing computer-executable instructions; and a processor that executes the computer-executable instructions to at least: receive recordings comprising time series data from a plurality of regions in a brain of the subject recorded during a resting period, wherein the resting period comprises a period of time between instances of abnormal brain interactions during which the subject is free of abnormal behavioral symptoms; fit the time series data to a three-dimensional image of the brain of the subject to identify a plurality of possible sources within the plurality of regions of the brain; determine an information inflow associated with each of the plurality of possible sources based on the time series data, wherein the information inflow reflects a flow of information to each of the plurality of possible sources from at least one other brain region; identify the focal area of the abnormal brain interactions as one of the plurality of possible sources having a maximum information inflow; and develop a treatment plan for the abnormal brain interactions in the subject based on the identified focal area.