{"pk":49404,"title":"Stimulus size influences gaze targets during free viewing of natural video","subtitle":null,"abstract":"While modern computational models accurately predict free\nviewing scanpaths via learned deep neural networks, the in-\nvestigation of the brain's implementation of the modeled be-\nhavior has been thus far limited to primarily bottom-up vi-\nsual features. One of the key question in the investigation in\nthe early visual system's implementation of bottom-up visual\nsaliency is how (and whether) it dynamically adapts its sensi-\ntivity to features of different spatial scales. This paper provides\na simple test of whether identical stimuli presented at different\nspatial scales produce different gaze behavior. We asked sub-\njects (n=12) to freely view video stimuli twice each session\nover two sessions In one session (intervention) the visual scale\nchanged from large (25 degrees of visual angle) to small (10\ndegrees) between viewings. In the other session (control) the\nvideo size was the same. Gaze was more strongly correlated\nbetween viewings of the same video size (r=0.265) than differ-\nent sizes (r=0.231), independent of whether there was a long\n(> 24 hours) or short (< 10 min) delay between viewings, im-\nplying that memory effects are not a strong factor. Although\nlow, these within-subject correlations are higher than the cor-\nrelation of gaze between different subjects viewing identical\nvideos (r=0.195).","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"Cognitive Neuroscience; Neuroscience; Psychology; Perception; Sensory Processing; Vision; Eye tracking"}],"section":"Papers with Poster Presentation","is_remote":true,"remote_url":"https://escholarship.org/uc/item/6416016s","frozenauthors":[{"first_name":"Daiki","middle_name":"","last_name":"Wakai","name_suffix":"","institution":"Kyoto University","department":""},{"first_name":"Tadashi","middle_name":"","last_name":"Isa","name_suffix":"","institution":"Kyoto University","department":""},{"first_name":"Richard","middle_name":"E","last_name":"Veale","name_suffix":"","institution":"Kyoto University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2025-01-01T12:00:00-06:00","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/49404/galley/37366/download/"}]}