1. A method for assessing psychological characteristics of a subject using responses obtained during the first moments of brain activity after presentation of a stimulus, the method comprising acts of: providing a context to the subject; exposing the subject to a visual stimulus for a first period of time of between approximately 500 milliseconds and approximately 1 second using a computer-implemented interface, the visual stimulus being selected by a processor from a plurality of visual stimuli stored in a database; receiving, responsive to the act of exposing, an input from the subject using the computer-implemented interface, the input to be received within one of the first period of time and a second period of time of no longer than approximately 300 milliseconds immediately following the beginning of the first period of time, the input representing a pre-cognitive emotional reaction of the subject to the visual stimulus that is obtained during the first moments of brain activity after the act of exposing the subject to the visual stimulus; storing, responsive to the act of receiving the input, a user response that represents the pre-cognitive emotional reaction of the subject to the visual stimulus; repeating the acts of exposing, receiving, and storing for each of the plurality of visual stimuli; and determining, based on each of the stored user responses, one or more dominant emotional characteristics of the subject in relation to the context.