Broca-Sulzer効果と視覚誘発電位の関係

伊藤 元雄, 杉下 守男, 伊藤 法瑞, 三宅 俊治, 辻 敬一郎

doi:10.4992/psycholres1954.23.140

Broca-Sulzer効果と視覚誘発電位の関係

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伊藤元雄

愛知学院大学
杉下守男

愛知学院大学
伊藤法瑞

愛知学院大学
三宅俊治

名古屋大学
辻敬一郎

名古屋大学

書誌事項

タイトル別名

A relationship between the Broca-Sulzer effect and visually evoked potentials

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説明

The relationship between the Broca-Sulzer effect and visually evoked potentials (VEPs) was examined with two subjects. In the psychophysical experiment, a flash of disc subtending 52′ in visual angle and of one of the 11 durations ranging from 0 (no stimulus) to 1000 ms was presented by means of a Maxwellian view system. The luminance levels were at 312, 987, and 3120 cd/m². Brightness judgments were made with the method of magnitude estimation. In the VEP experiment, 300-summed VEPs were obtained from 0₁ in the 10-20 system at six durations ranging from 0 to 500 ms and at 312 and 3120 cd/m². As to the VEP components (P₁, N₁, P₂, N₂), two indices of the areas ΔP₁N₁P₂ and ΔN₁P₂N₂ were measured with a planimeter and were used for the analysis. The results indicated the positive correlation between the apparent brightness enhancement and the VEP responses.