{"id":2131,"date":"2017-01-11T17:13:00","date_gmt":"2017-01-11T08:13:00","guid":{"rendered":"http:\/\/cinetjp-static3.nict.go.jp\/english\/?post_type=event&#038;p=2131"},"modified":"2022-10-09T17:14:51","modified_gmt":"2022-10-09T08:14:51","slug":"20170111_1820","status":"publish","type":"event","link":"http:\/\/cinetjp-static3.nict.go.jp\/english\/event\/20170111_1820\/","title":{"rendered":"3rd CiNet Monthly Seminar : Austin J. Roorda, \u201cSeeing light and color with single cones\u201d"},"content":{"rendered":"\n<p><strong>CiNet Monthly Seminar<\/strong><\/p>\n\n\n\n<p>January 27, 2017<br>16:00 ~ 17:30<br>CiNet\u30001F\u3000Conference Room<br>Sponsored by Humanware Innovation Program<\/p>\n\n\n\n<p>\u201cSeeing light and color with single cones\u201d<\/p>\n\n\n\n<p>Austin J. Roorda<br>Professor<br>University of California, Berkeley<\/p>\n\n\n\n<p>Host :\u00a0Izumi Ohzawa\u00a0(PI)<\/p>\n\n\n\n<p>Abstract:<br>To study the circuits underlying color vision near the fovea, we developed a system with adaptive optics and high-speed eye tracking that enables tracking, targeting and stimulation of cones in living eyes. In two subjects with classified mosaics, cones stimulated with 543 nm light against a white background yield expected and unexpected percepts. Stimulated M cones yield either green or achromatic percepts, and the individual responses are pure \u2013 largely falling into color or achromatic reporting classes. L cones respond similarly, except the fraction of color-reporting cones yield red percepts. Similar results are found against a blue background, but the M cones convey distinctly blue percepts rather than green. What is unexpected is that the arrangement of the color and achromatic reporting cones are distributed in a way that is inconsistent with simple chromatically-opponent, center-surround midget ganglion cells. To understand how lateral interactions influence these percepts, we\u2019re measuring cone sensitivity thresholds against different adapting background conditions. Collectively, these studies shed light on how foveal cone signals are transformed by retinal circuitry.<\/p>\n\n\n\n<p><strong>About CiNet\u2019s Friday Lunch Seminars:<br><\/strong>The Friday Lunch Seminar is CiNet\u2019s main regular meeting series, held every week at 12.15 in the beautiful main lecture theatre on the ground floor at CiNet. The talks are typically 40mins long and orientated towards an inter-disciplinary audience. They are informal, social, and most people bring their own lunch to eat during the talk. They are open to anyone who is feeling curious and wants to come, regardless of where you work.<\/p>\n","protected":false},"featured_media":0,"template":"","acf":[],"_links":{"self":[{"href":"http:\/\/cinetjp-static3.nict.go.jp\/english\/wp-json\/wp\/v2\/event\/2131"}],"collection":[{"href":"http:\/\/cinetjp-static3.nict.go.jp\/english\/wp-json\/wp\/v2\/event"}],"about":[{"href":"http:\/\/cinetjp-static3.nict.go.jp\/english\/wp-json\/wp\/v2\/types\/event"}],"wp:attachment":[{"href":"http:\/\/cinetjp-static3.nict.go.jp\/english\/wp-json\/wp\/v2\/media?parent=2131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}