Patent ID: 8136943

Claim:
A system for measuring the visual perception span and/or speed of a subject, comprising: a display device capable of displaying a two-dimensional representation, the display device comprising a plurality of portions in a two-dimensional arrangement, each portion capable of activation independence; an input device capable of receiving a plurality of responsive inputs from the subject, each of the plurality of responsive inputs corresponding to a portion on the display device; and a test unit operably connected to the display device and the input device, the test unit operable to: cause the display device to display a first two-dimensional representation for a first predetermined amount of time, the first two-dimensional representation comprising a first plurality of active portions of the display device; cause the display device to cease to display the first two-dimensional representation after the conclusion of the first predetermined amount of time; cause the input device to receive, for a second period of time, any of a plurality of inputs from the subject, each of the plurality of inputs corresponding to at least one portion of the display device; after the second period of time, compare the plurality of inputs received by the input device during the second period of time to the first two-dimensional representation displayed by the display device during the first period of time to determine: which of the plurality of inputs correspond to an active portion of the first two-dimensional representation; which of the plurality of inputs do not correspond to an active portion of the first two-dimensional representation; which of the active portions of the first two-dimensional representation a corresponding input; and outputting the results of the comparison.