VISUAL SENSATIONS AROUSED BY MAGNETIC FIELDS
VISUAL SENSATIONS AROUSED BY MAGNETIC FIELDS
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DOI：
10.1152/ajplegacy.1947.148.2.372
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发表时间：
1947-01-01
影响因子：
--
通讯作者：
WALSH, EG
中科院分区：
文献类型：
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作者：
BARLOW, HB;KOHN, HI;WALSH, EG
研究了交流电、直流电和电磁场对人产生的视觉感觉。只有当眼睛本身而不是枕叶皮层受到刺激时，才能产生这种效果。磁场的作用似乎基本上与电流相同;两者都在视野的外围最大，无色（在低强度下），通过眼球上的压力消除，受到疲劳，由高达至少90 c.p.s.的频率引起，并通过移动眼球来延长。只有一个区别，即闭上眼睛会提高电刺激而不是磁刺激的阈值。兴奋点似乎在视网膜内。
The visual sensations produced in man by alternating and direct currents and by the electromagnetic field were studied. The effects were obtained only when the eye itself, not the occipital cortex, was stimulated. The action of the magnetic field seems essentially the same as the currents; both are maximal in the periphery of the visual field, colorless (at low intensities), abolished by pressure on the eyeball, subject to fatigue, induced by frequencies up to at least 90 c.p.s., and prolonged by moving the eyeball. There is only one difference, namely, shutting the eye raises the threshold for electric but not magnetic stimulation. The locus of excitation appears to be within the retina.