Development of a highly controllable visual stimulus generator for multidimentional analysis of visual processing

开发高度可控的视觉刺激发生器，用于视觉处理的多维分析

• 批准号: 02551001
• 负责人: EJIMA Yoshimichi
• 金额: $ 5.18万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02551001/
• 关键词: visual perception; stimulus generator; a highly controlled system; motion perception; color perception; form perception; 主観的輪郭線錯視; カニッツア錯視; 知覚の相互作用; 高精細度; 高階調; 高速; 視知覚測定システム

The accurate determination of the spatio-temporal properties of parallel channels is of central importance in the study of visual system. Ideally a visual stimulation device should present in a repeatable and highly controllable manner, a wide range of a visual stimuli, in order to test as many as possible important visual parameters controlling the response of a visual channel.In this study we have developed a versatile visual stimulation generator which incorporates most of the advantages of the existing techniques. Images consist of patterns of any desired orientation and size. The size, position, orientation, intensity, and color of each image is readily adjustable, and images can be moved in any direction at a desire rate and distance. In addition, stimulus movement 'and duration are externally controlled by function generators and a computer. Because image parameters are externally controllable, the device has been useful in quantitative para'metric measurements of spatio-temporal properties of channels with the aid of a work station(SPARKstation ; SUN microsystems). The computer program has been developed to perform a multidimensional analysis of visual performance as a function of visual image configuration, position, movement, intensity, or other parameter. With this apparatus we have carried out psychophysical measurements on visual illusions, involving subjective contours and apparent motion perception, and provided some conceptual links between these psychophysical findings and the recent anatomical and physiological discoveries.

在视觉系统研究中，准确确定平行通道的时空特性是非常重要的。理想情况下，视觉刺激设备应该以可重复和高度可控的方式呈现广泛的视觉刺激，以便测试尽可能多的控制视觉通道响应的重要视觉参数。在这项研究中，我们开发了一种多功能视觉刺激发生器，它结合了现有技术的大多数优点。图像由任意方向和大小的图案组成。每个图像的大小、位置、方向、强度和颜色都可以很容易地调整，并且图像可以以所需的速度和距离向任何方向移动。此外，刺激运动和持续时间是由函数发生器和计算机外部控制的。由于图像参数是外部可控的，该设备在工作站(SPARK STATION；SUN MicroSystems)的辅助下用于通道时空特性的定量参数测量。该计算机程序已被开发用于执行视觉性能的多维分析，作为视觉图像配置、位置、运动、强度或其他参数的函数。利用该设备，我们对视觉错觉进行了心理物理测量，包括主观轮廓和明显的运动知觉，并在这些心理物理发现与最近的解剖和生理发现之间提供了一些概念性的联系。

项目成果

大谷 芳夫: "線形フィルタ-モデルによるコントラスト検出閥ー提示時間関数の解析" 富山県立大学紀要. 1. 5-11 (1991)

Yoshio Otani：“使用线性滤波器模型的对比度检测 - 呈现时间函数的分析”富山大学公告（1991）。

Y. Ejima and Y. Ohtani: "Stimulus dependencies of long-range apparent motion and cotributions of the transient and sustained channels in the human visual system." Japanese Psychological Review. 32. 152-166 (1991)

Y. Ejima 和 Y. Ohtani：“人类视觉系统中长距离视运动的刺激依赖性以及瞬态和持续通道的贡献。”

Shinya Nishida: "Inhibitory interaction in a split/fusion apparent motion." Vision Research.

Shinya Nishida：“分裂/融合表观运动中的抑制相互作用。”

J. J. Wu, Y. Ejima, H. Kita and Y. Nishikawa: "Representation of spatial and spectral characteristic of brightness perception by a five-layered neural network." IJCN. (1992)

J. J. Wu、Y. Ejima、H. Kita 和 Y. Nishikawa：“五层神经网络表示亮度感知的空间和光谱特征。”

Nishida, Y. Ohtani and Y. Ejima: "Inhibitory interaction in a split/fusion apparent motion." Vision Research.

Nishida、Y. Ohtani 和 Y. Ejima：“分裂/融合表观运动中的抑制相互作用。”