Patent application number | Description | Published |
20100037373 | METHOD OF DETECTING AND CONTROLLING PERCEPTUAL FLICKER - A method and apparatus are provided for processing light from a light source. The method includes the steps of measuring a predetermined set of characteristics of the light source and detecting flicker when the predetermined set of characteristics exceed a corresponding flicker fusion threshold value. | 02-18-2010 |
20100039617 | Eye Movements As A Way To Determine Foci of Covert Attention - A method and apparatus are provided for identifying the covert foci of attention of a person when viewing an image or series of images. The method includes the steps of presenting the person with an image having a plurality of visual elements, measuring eye movements of the subject with respect to those images, and based upon the measured eye movements triangulating and determining the level of covert attentional interest that the person has in the various visual elements. | 02-18-2010 |
20100277693 | METHOD OF DETECTING NEUROLOGICAL DISEASE - A method and apparatus are provided for characterizing square wave jerks in the eye movements of a person, which may provide a powerful tool in the differential diagnosis of oculomotor and neurological disease. The method includes the steps of a) providing a sequence of saccades, b) identifying pairs of consecutive saccades of the sequence, c) determining whether each saccade of each identified pair is opposite the direction of the other saccade and, if not, then discarding the pair, d) determining whether a magnitude of each saccade of each identified pair is comparable and, if not, then discarding the pair, e) determining whether the pair of saccades of each identified pair are temporally related by a predetermined time period and, if not, then discarding the pair and f) collecting any remaining pairs of saccades as square wave jerks. | 11-04-2010 |
20110101887 | METHOD OF VIEWING A SUBJECT - A method and apparatus are provided for viewing a subject. The method includes the steps of providing a predetermined visual contrast among image details of the subject and maintaining the visual contrast for a predetermined time period of less than 100 milliseconds. | 05-05-2011 |
20120238903 | Method of Detecting Neurological Disease - A method and apparatus are provided for the differential diagnosis of a patient with progressive supranuclear palsy (PSP) from a patient with Parkinson's disease (PD). One method includes identifying a plurality of partially repetitive eye movements that over time define square wave jerks, each square wave jerk of the plurality of square wave jerks defined by a first horizontal saccadic movement that moves the eye away from a fixation target followed by a corrective saccadic movement towards the target shortly thereafter, measuring a vertical component associated with the plurality of square wave jerks, comparing the vertical component with a threshold value. PSP or PD is identified by comparison of the vertical component with the threshold value. In another embodiment, a patient's saccade rate is determined and compared to a threshold value, and PSP or PD is identified based upon the comparison of the saccade rate with the threshold value. | 09-20-2012 |
20130147394 | METHOD OF DETECTING AND CONTROLLING PERCEPTUAL FLICKER - A method and apparatus are provided for processing light from a light source. The method includes the steps of measuring a predetermined set of characteristics of the light source and detecting flicker when the predetermined set of characteristics exceed a corresponding flicker fusion threshold value. | 06-13-2013 |
20140221869 | METHOD OF DETECTING NEUROLOGICAL DISEASE - A method and apparatus including identifying a plurality of at least partially repetitive eye movements of a person, the eye movements defined by a first predominantly horizontal saccadic movement that moves the eye away from a fixation target followed by a corrective saccadic movement towards the target shortly thereafter, measuring a vertical component associated with the plurality of eye movements and comparing the vertical component with a predetermined threshold value. | 08-07-2014 |
20140336526 | SYSTEM AND METHOD FOR USING MICROSACCADE DYNAMICS TO MEASURE ATTENTIONAL RESPONSE TO A STIMULUS - A system and method for determining a subject's attentional response to a stimulus. The method includes measuring microsaccadic eye movement dynamics of the subject, detecting whether a microsaccadic signature (a suppression in microsaccadic rate) is present in the measured microsaccadic eye movement relative to a time of the stimulus, and correlating the subject's attentional response to the stimulus based on the detection. The method further includes determining that the stimulus was sensed if the microsaccadic signature is present and determining that the stimulus was not sensed if the microsaccadic signature is absent. | 11-13-2014 |
20150029462 | SYSTEM AND METHOD FOR USING MICROSACCADE PEAK VELOCITY AS A MEASURE OF MENTAL WORKLOAD AND FATIGUE - A system and method for determining a subject's level of fatigue. The method includes measuring microsaccadic eye movement dynamics of the subject, calculating a current microsaccade peak velocity from the measured microsaccadic eye movement dynamics, and comparing the current microsaccade peak velocity to a baseline microsaccade peak velocity. The method further includes determining the level of fatigue based on a difference between the current microsaccade peak velocity and the baseline microsaccade peak velocity. | 01-29-2015 |