The "top-down" effects of grasping-form on simultaneous contrasts.

抓握形式对同时对比的“自上而下”影响。

基本信息

批准号：
07610073
负责人：
GOTO Takuo
金额：
$ 0.96万
依托单位：
The Aichi Prefectural University of Fine Arts and Music
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

项目摘要

To examine the top-down effects on simultaneous contrasts under various stimulus conditions, we measured the magnitudes of hue and brightness contrasts (MHCs and MBCs) by manipulating subjects' attitudes and experiences on visual perception. First, we arranged the subjects' experimental literacy to identify the difference between hue/brightness contrast and assimilation in the perception of Koffka-ring type patterns ("striped" patterns). Results revealed that the subjects, who knew the transition from "contrast" to "assimilation" when the test figure (TF) made wider than the inducing figure (IF), reported typical transition in the MHCs and MBCs under the increasing ratio of striped TF to IF.Furthermore, the subjects' experimental literacy was tailored to examine the relationship between the hue contrast and the similarity of TF's geometrical row-patterns (for instance, gray circle on red IF vs.gray square on green IF). Further results indicated that the subjects, who were well versed in the relationship between the TF's pattern and the hue contrast, positively responded to the existence of the significant relationship between the TF's figural similarity and the MHCs. In conclusion, the top-down (grasping) attitudes adopted by the subjects generate the different effect even on the more peripheral or sensitive phenomena such as simultaneous contrast. To further elaborate the top-down effects on simultaneous contrast, we need more intensive studies using more developed experimental conditions.

为了在各种刺激条件下检查对同时对比的自上而下的影响，我们通过操纵受试者对视觉感知的态度和经验来测量色相和亮度对比度（MHC和MBC）的幅度。首先，我们安排了受试者的实验素养，以确定在Koffka-Ring类型模式（“条纹”模式）感知中的色相/亮度对比与同化的差异。结果表明，当测试数字（TF）的范围比诱导数字（如果）更宽时，他们知道从“对比”到“同化”的受试者报告了在MHC和MBC中的典型过渡，在条纹TF的比率增加到IF.Furthermore的情况下，该受试者的实验性识字率是估算的，并且是依靠的关系。行patterns（例如，如果vs.gray正方形在绿色上，则在红色上灰色圆圈）。进一步的结果表明，精通TF模式与色相对比之间关系的受试者对TF的图形相似性与MHC之间的显着关系有积极的反应。总之，受试者采用的自上而下（抓握）态度也会产生不同的效果，即使对诸如同时对比的更外围或敏感现象。为了进一步阐述对同时对比的自上而下的影响，我们需要使用更开发的实验条件进行更深入的研究。