1. A method for assessment of facial emotion sensitivity of a subject, said method comprising the steps of: presenting at least one scene to said subject on a display, said scene comprising a plurality of faces and a background on a display, said plurality of faces comprising a plurality of facial expressions; adjusting at least one facial expression on said scene; receiving feedback from said subject via at least one input device; quantitatively refining said received feedback relative to said scene; modulating said adjusted facial expression relative to accuracy of said received feedback, said modulated facial expression associated with a predetermined target; transforming said modulated facial expression; calculating a critical threshold parameter for said subject; and recording said critical threshold parameter onto a tangible computer readable medium.