A verification of moduration of visual perception caused by fixation eye movements based on a model of retinae

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  • NISHINO Makoto
    Graduate School Biology-Oriented Science and Technology, Kinki University
  • KOHAMA Takeshi
    Faculty of Biology-Oriented Science and Technology, Kinki University
  • YOSHIDA Hisashi
    Faculty of Biology-Oriented Science and Technology, Kinki University

Bibliographic Information

Other Title
  • 網膜数理モデルによる固視微動が視知覚に及ぼす影響の検証(視聴覚技術,ヒューマンインタフェースおよび一般)
  • 網膜数理モデルによる固視微動が視知覚に及ぼす影響の検証
  • モウマク スウリ モデル ニ ヨル コシ ビドウ ガ シ チカク ニ オヨボス エイキョウ ノ ケンショウ

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Abstract

In this study, we performed a simulation experiments using a mathematical model of a wide-scale retinal network considering the receptive fields' properties in parafovea. Vertical sinusoidal grating patterns and random dot patterns, which consist of particular spacial frequencies, were given as input patterns. We computed the retinal ganglion cells responses which were composed of either a high or a low spacial frequency. Simulation results of grating pattern input suggest that microsaccades enhance the membrane potential of ganglion cells for the low-frequency pattern, and as for the high-frequency patten, it is influenced by drifts and tremor, particularly on the responses of M-type cells under both conditions. On the other hand, they do not influence the activity of M- or P-type cells when any random dot pattern inputs was given. These results suggest that the strength of the effects derived by fixation eye movements on the retinal responses depend on the nature of the input patterns.

Journal

  • ITE Technical Report

    ITE Technical Report 39.11 (0), 17-20, 2015

    The Institute of Image Information and Television Engineers

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