title: Effect of visual attention on the properties of optokinetic nystagmus.
abstract: It has been demonstrated that optokinetic nystagmus (OKN) gain increases through attention to peripheral motion when the central visual field is occluded. However, how the properties of OKN change when two areas containing motion in different directions are presented in the peripheral visual field is still unclear. In this study, we investigated whether OKN corresponding to the attended motion in the periphery occurred while the observer was maintaining fixation at the center. We presented two areas with different directions of motion arranged on the left and right, top and bottom, or center and surrounding (concentric) areas in the display. Observers counted targets appearing on the attended area in the stimulus to maintain their attention on it. The results indicate that attention enhances the gain and frequency of OKN corresponding to the attended motion even in the case of stimuli having several areas with different directions of motion.
authors.affiliation: Department of Information and Communications Engineering, School of Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa, Japan.
authors.forename: Kei
authors.identifier: http://orcid.org/0000-0003-4379-5758
authors.initials: K
authors.lastname: Kanari
authors.affiliation: Groupwide CTO Office, Technical Information Service Department, Panasonic Corporation, Kadoma, Osaka, Japan.
authors.forename: Kiyomi
authors.initials: K
authors.lastname: Sakamoto
authors.affiliation: Department of Information and Communications Engineering, School of Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa, Japan.
authors.forename: Hirohiko
authors.initials: H
authors.lastname: Kaneko
mesh_terms: D006801:Humans; D009039:Motion Perception; D017120:Nystagmus, Optokinetic / Q000502:physiology*; D014794:Visual Fields