Systems and methods for providing behavioral based intention detection. Based on behavioral measurements of a user associated with an access request to a protected resource, systems and methods are provided for generating an access decision indicating whether the user access request is accepted based on a determined potential intention of the user and a motivation score. The systems and methods may receive, from a movement detection sensor, stimulus-based micromovement data representing head micromovement upon the user being presented with a target stimulus associated with the potential intention and determine, based on the stimulus-based micromovement data, a stimulated frequency of the head micromovement pattern associated with the user being presented with the target stimulus. The systems and methods may determine whether the user has the potential intention based at least on a baseline frequency and the stimulated frequency of the head micromovement pattern.