THE SPECIFICITY OF INTERACTIONS AMONG THE VISUAL PHOTOPIC MECHANISMS AS REVEALED BY SPATIAL SENSITIZATION EFFECTS

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概要

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• Spatial sensitization effect which refers to a decrease in the threshold for a test flash superimposed on the center of background with increasing background diameter is often attributed to the existence of an antagonistic center-surround organization within the retina. In the present study the wavelengths of test and background stimuli were varied systematically, while background luminance was kept constant, in order to find what changes occur in sensitization effects with combinations of test and background wavelengths. It was found that the largest spatial sensitization effects were produced when the wavelengths of test and background stimuli were similar. It is concluded that the center-surround antagonism must be organized, not between the different types, but within a single type of visual photopic mechanisms. An extraordinary findings obtained with a blue-violet test flash were briefly discussed.

• 公益社団法人 日本心理学会の論文

著者

• 三星 十久

  青山学院大学 文学部

• 三星 宗雄

  東京大学

関連論文

• Cancellation法による色対比の測定 : Viewing Timeの要因
• THE SPECIFICITY OF INTERACTIONS AMONG THE VISUAL PHOTOPIC MECHANISMS AS REVEALED BY SPATIAL SENSITIZATION EFFECTS

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