Abstract: A system for assessing subjects for inadequate visual attention capabilities presents a sequence of display screens to the subject on a conventional computer monitor. The display screens include a foveal target and a peripheral target, and may additionally include distractor elements around the peripheral target. The display time for the displays is varied either as a function of the responses of the subject or in a preprogrammed manner. The responses are evaluated for accuracy, and are then used to generate a measurement which is used to assess the subject for adequate visual attention capabilities.

Abstract: A method for diagnosing deficiencies in and expanding the size of a person's "Useful Field Of View" (UFOV). The UFOV is determined by the eccentricity (in degrees of visual angle) at which peripheral targets (presented within an embedding context) can be localized 50% of the time while performing a concurrent visual task in central vision. The method provides multiple blocks of trials, each block of trials consists of displaying a plurality of times before a subject's vision a set of four sequentially presented images having specific characteristics, and the specific characteristics of each block of trials is changed each time a new block of trials is displayed before the subject.