{"id":938556,"date":"2023-05-02T20:57:20","date_gmt":"2023-05-03T03:57:20","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/"},"modified":"2023-05-02T20:57:20","modified_gmt":"2023-05-03T03:57:20","slug":"periodic-motion-based-visual-stimulus","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/periodic-motion-based-visual-stimulus\/","title":{"rendered":"Periodic motion-based visual stimulus"},"content":{"rendered":"<p><em>Description<br \/>\n<\/em>A computer device is provided that includes a display device, and a sensor system configured to be mounted adjacent to a user&#8217;s head and to measure an electrical potential near one or more electrodes of the sensor system. The computer device further includes a processor configured to present a periodic motion-based visual stimulus having a changing motion that is frequency-modulated for a target frequency or code-modulated for a target code, detect changes in the electrical potential via the one or more electrodes, identify a corresponding visual evoked potential feature in the detected changes in electrical potential that corresponds to the periodic motion-based visual stimulus, and recognize a user input to the computing device based on identifying the corresponding visual evoked potential feature.<\/p>\n<p>&nbsp;<\/p>\n<div class=\"gsc_oci_field\"><em>Inventors<br \/>\n<\/em>Andrew D Wilson, Hakim SI MOHAMMED, Christian Holz, Adrian Kuo Ching Lee, Ivan Jelev Tashev, Hannes Gamper, Edward Bryan Cutrell, David Emerson Johnston, Dimitra Emmanouilidou, Mihai R Jalobeanu<\/div>\n<p>&nbsp;<\/p>\n<p><em>Access<\/em><br \/>\n<a class=\"msr-external-link glyph-append glyph-append-open-in-new-tab glyph-append-xsmall\" href=\"https:\/\/ppubs.uspto.gov\/pubwebapp\/static\/pages\/ppubsbasic.html\">Patent Public Search Basic\u00a0| USPTO<span class=\"sr-only\"> (opens in new tab)<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Description A computer device is provided that includes a display device, and a sensor system configured to be mounted adjacent to a user&#8217;s head and to measure an electrical potential near one or more electrodes of the sensor system. The computer device further includes a processor configured to present a periodic motion-based visual stimulus having 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