Fundamental properties of intensity, form, and motion perception in the visual nervous systems of Calliphora phaenicia and Musca domestica.
Fundamental properties of intensity, form, and motion perception in the visual nervous systems of Calliphora phaenicia and Musca domestica.
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DOI：
10.1085/jgp.53.4.385
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发表时间：
1969-04
影响因子：
3.8
通讯作者：
Dill, J C
中科院分区：
文献类型：
--
作者：
McCann, G D;Dill, J C
已经对家蝇和菲尼西亚昆虫视叶和大脑中的几类中间神经元进行了详细研究。视觉刺激根据强度、形式和运动的属性进行分类。神经单元类别的响应特征是针对这三类视觉刺激来描述的。虽然那些检测选定方向上的运动的单元具有紧张响应，但形状检测单元仅具有相位响应。通过将这些类别的响应与视觉刺激相关联，表明这些单元整合了视野非常小的其他单元的响应。据推测，小视场单元整合了一小群相邻视网膜细胞的输出，并对强度、形状和运动做出不同的反应。结果表明，形状和运动检测单元的响应与图案强度渐变的方向无关。由于这种独立性，进一步表明，无法正确检测运动必须从有效采样站间距四倍的空间波长开始，而不是之前预测的两倍。
Several classes of interneurons in the optic lobes and brain of the insects, Musca domestica and Calliphora phaenicia, have been studied in detail. Visual stimuli have been categorized on the basis of the properties of intensity, form, and motion. Response characteristics of the classes of neural units are described with respect to these three classes of visual stimuli. While those units that detect motion in select directions have a tonic response, form detection units have a phasic response only. Through correlation of the responses of these classes with visual stimuli, it is shown that these units integrate the responses of other units which have very small visual fields. The small-field units are presumed to integrate the output of a small group of adjacent retinula cells and to respond differentially to intensity, form, and motion. It is shown that the response of both form and motion detection units is independent of the direction of pattern intensity gradation. As a consequence of this independence, it is further shown that failure to detect motion properly must start at a spatial wavelength four times the effective sampling station spacing rather than twice as has been predicted previously.