METHODS AND SYSTEMS FOR ASSESSING COGNITIVE FUNCTION
First Claim
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1. A method of assessing cognitive function in a subject, comprising the steps of:
- (a) presenting a plurality of images to the subject, wherein the plurality of images comprises a first subset of images and a second subset of images;
(b) monitoring eye movements of the subject during presentation of the first subset of images to obtain first eye movement data;
(c) monitoring eye movements of the subject during presentation of the second subset of images to obtain second eye movement data;
(d) comparing the first eye movement data and the second eye movement data to determine an index of cognitive function; and
(e) correlating the index of cognitive function with a degree of cognitive function in the subject, thereby assessing the cognitive function,wherein the monitoring steps are carried out using an optical eyetracking system.
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Abstract
The present invention provides methods and systems for assessing cognitive function by comparing a subject'"'"'s eye movements within and across distinct classes of images.
49 Citations
22 Claims
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1. A method of assessing cognitive function in a subject, comprising the steps of:
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(a) presenting a plurality of images to the subject, wherein the plurality of images comprises a first subset of images and a second subset of images; (b) monitoring eye movements of the subject during presentation of the first subset of images to obtain first eye movement data; (c) monitoring eye movements of the subject during presentation of the second subset of images to obtain second eye movement data; (d) comparing the first eye movement data and the second eye movement data to determine an index of cognitive function; and (e) correlating the index of cognitive function with a degree of cognitive function in the subject, thereby assessing the cognitive function, wherein the monitoring steps are carried out using an optical eyetracking system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for assessing cognitive function in a subject, comprising:
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a presentation module configured to present a first subset of images and a second subset of images to the subject; an optical eyetracking module configured to monitor the eye movement of the subject during presentation of the first subset of images and second subset of images to generate first eye movement data and second eye movement data, respectively; and a computing module communicatively linked to the optical eyetracking module and optionally the presentation module, wherein the computing module is configured to receive the first eye movement data and the second eye movement data, compare the first eye movement data and the second eye movement data to determine an index of cognitive function, and correlate the index of cognitive function with a degree of cognitive function in the subject, thereby assessing the cognitive function. - View Dependent Claims (20, 21)
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22. A computer program product for assessing cognitive function, the computer program product comprising code which, when loaded into memory and executed on a processor of a computing device, is adapted to carry out a method of assessing cognitive function in a subject, comprising the steps of:
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(a) presenting a plurality of images to the subject, wherein the plurality of images comprises a first subset of images and a second subset of images; (b) monitoring eye movement of the subject during presentation of the first subset of images to obtain first eye movement data; (c) monitoring eye movement of the subject during presentation of the second subset of images to obtain second eye movement data; (d) comparing the first eye movements data and the second eye movement data to determine an index of cognitive function; and (e) correlating the index of cognitive function with a degree of cognitive function in the subject, thereby assessing the cognitive function.
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Specification