Gesture-based cognitive testing
Gesture sensing is used as an input to perform cognitive function testing.
1 . A gesture-based cognitive performance testing system.
2 . The system of claim 1 , wherein the system includes a sensor for sensing the three dimensional position in space of a body part of the test taker for whom cognitive performance is to be measured.
3 . The system of claim 2 , wherein said cognitive performance measuring system includes means for determining where in space said body part is positioned and for determining the motion of said body part.
4 . The system of claim 3 , wherein said body part includes the test taker's finger.
5 . The system of claim 4 , and further including a processor for determining a match between the motion of said test taker's finger and a predetermined path.
6 . The system of claim 5 , wherein the degree of said match measures cognitive performance of said test taker.
7 . The system of claim 6 , and further including a screen and a target moving on said screen in a smooth pursuit path and wherein said processor determines how closely the sensed motion of the test taker's finger is to the movement of the target on said smooth pursuit path.
8 . The system of claim 7 , wherein the metric used for determining the match of the movement of the finger to the movement of the on-screen target includes one of variability, regularity, and lead or lag performance.
9 . The system of claim 2 , wherein said sensor includes stereoscopic cameras.
10 . The system of claim 9 , wherein said stereoscopic cameras include infrared light emitting diodes.
11 . The system of claim 5 , wherein said predetermined path includes a circle.
12 . The system of claim 7 , wherein the movement of said target is along a smooth pursuit path.
13 . The system of claim 12 , wherein the movement of said target along said smooth pursuit path is variable in terms of target characteristics and path characteristics.
14 . A method for determining cognitive performance by sensing a gesture of a test taking individual.
15 . The method of claim 14 , wherein the sensed gesture includes the movement of the test taking individual's body part.
16 . The method of claim 15 , wherein cognitive function is determined by the closeness of the path of the movement of the individual's body part to a predetermined path.
17 . The method of claim 16 , wherein the predetermined path includes a circle.
18 . The method of claim 16 , wherein the predetermined path is presented on-screen to the test taking individual.
19 . The method of claim 18 , wherein the position of the individual's body part as it moves is presented on-screen juxtaposed to the predetermined path, whereby the test taking individual is provided with visual feedback.
20 . The method of claim 19 , and further including a target moving on the predetermined path, whereby the cognitive test includes the ability of the individual to move the individual's body part so that the presented on-screen body part position coincides with the target as it moves along the path.
21 . The method of claim 1 , wherein the body part includes the finger of the test taker.
22 . A system for gesture-based cognitive testing in which the testing includes a gesture-based input.
23 . A system comprising a gesture-sensing device as an input to a cognitive performance monitoring system.