APPARENT MOVEMENT IN RELATION TO HOMONYMOUS AND HETERONYMOUS STIMULATION OF THE CEREBRAL HEMISPHERES
APPARENT MOVEMENT IN RELATION TO HOMONYMOUS AND HETERONYMOUS STIMULATION OF THE CEREBRAL HEMISPHERES
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DOI：
10.1037/h0062438
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发表时间：
1948-01-01
影响因子：
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通讯作者：
GENGERELLI, JA
中科院分区：
文献类型：
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作者：
GENGERELLI, JA
目的是确定是否在同一大脑半球的兴奋之间的相互作用大于在不同半球的兴奋之间的相互作用。表观运动现象被用作相互作用的指标。在白色背景上的四个黑点被用作刺激物，排列为5 mm正方形的角。视野被单目地观察;点到受试者眼睛的距离为13英寸。形成“正方形”的一个对角线的2个点一起呈现，熄灭，然后跟随0.1秒。后来由2形成另一个对角线。以这种方式，刺激条件可以引起明显的垂直或明显的水平运动。这两者的发生并不取决于周围刺激的条件，而只取决于大脑因素。通过改变注视点相对于4个点的位置来确保大脑因素的控制。结果发现，当注视点位于“正方形”的中心时，受试者看到的主要是垂直运动，即构成“正方形”2个垂直“边”的2个点之间的运动。“在这种情况下，注视点落在视网膜中线上，形成给定垂直侧的2个点落在同一半球上。当注视点在“正方形”的一侧时，发现一种明显的运动并没有占优势。在这种情况下，来自4个点的兴奋都落在同一个半球上。得出的结论是，有更大的大脑兴奋之间的相互作用，在同一半球之间的大脑兴奋在不同的半球。
The purpose was to deter-mine whether interaction between excitations in the same cerebral hemisphere is greater than interaction between excitations in different hemispheres. The phenomenon of apparent movement was used as anindicator of interaction. Four black dots on a white background, arranged as the corners of a 5 mm. square were used as stimulus objects. The field was viewed monocularly; distance of the dots from the subject''s eye was 13 inches. The 2 dots forming one diagonal of the "square" were presented together, extinguished, and then followed 0.1 sec. later by the 2 forming the other diagonal. In this way, the stimulus conditions could give rise either to apparent vertical or apparent horizontal movement. Whether the one or the other took place could not be dependent on the conditions of peripheral stimulation, but on cerebral factors alone. Control of the cerebral factors was secured by varying the position of the fixation point relative to the 4 dots. It was found that when the fixation point was in the center of the "square," the subjects saw predominantly vertical movement, that is, movement between the 2 dots constituting each of the 2 vertical "sides" of the "square." In this case the fixation point fell on the retinal mid-line and the 2 dots forming a given vertical side fell on the same hemisphere. When the fixation point was to one side of the "square," it was found that there was no predominance of one type of apparent movement over the other. In this case the excitations from the 4 dots all fell on the same hemisphere. It was concluded that there is greater interaction between cerebral excitations in the same hemisphere than between cerebral excitations in disparate hemispheres.