METHOD TO EVALUATE PSYCHOLOGICAL RESPONSES TO VISUAL OBJECTS
First Claim
1. A method of evaluating the response of a subject to visual features of a visual display, the method including the steps of:
- (a) presenting a visual display having particular visual features to the subject during a first period;
(b) determining brain activity of the subject during the first period;
(c) presenting reference display material to a subject during a second period;
(d) determining reference brain activity of the subject during the second period;
(e) tracking the gaze position of at least one of the eyes of the subject on the visual display during the first period; and
(f) evaluating the response of the subject to particular visual features of the visual display by determining differences in brain activity determined between steps (b) and (d) when the gaze of the subject is directed at the particular features.
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Abstract
A method of evaluating the response of a subject to visual features of a visual display, the method including the steps of: (a) presenting a visual display having particular visual features to the subject during a first period; (b) determining brain activity of the subject during the first period; (c) presenting reference display material to a subject during a second period; (d) determining reference brain activity of the subject during the second period; (e) tracking the gaze position of at least one of the eyes of the subject on the visual display during the first period; and (f) evaluating the response of the subject to particular visual features of the visual display by determining differences in brain activity determined between steps (b) and (d) when the gaze of the subject is directed at the particular features.
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Citations
30 Claims
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1. A method of evaluating the response of a subject to visual features of a visual display, the method including the steps of:
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(a) presenting a visual display having particular visual features to the subject during a first period; (b) determining brain activity of the subject during the first period; (c) presenting reference display material to a subject during a second period; (d) determining reference brain activity of the subject during the second period; (e) tracking the gaze position of at least one of the eyes of the subject on the visual display during the first period; and (f) evaluating the response of the subject to particular visual features of the visual display by determining differences in brain activity determined between steps (b) and (d) when the gaze of the subject is directed at the particular features. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A system for evaluating the response of a subject to visual features of a visual display, the system including:
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(a) display means for displaying said visual features to the subject; (b) means for determining brain activity of the subject at predetermined scalp sites of the subject; (c) gaze tracking means for determining the gaze position of the subject on said display means; (d) detecting means for detecting when the gaze position of the subject impinges on selected visual features; and (e) averaging means for calculating average values of brain activity for each of the selected visual features when the detecting means detects that the gaze position of the subject impinges on the respective selected visual features.
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Specification