THE CONTRAST SENSITIVITY OF FLY MOVEMENT-DETECTING NEURONS
THE CONTRAST SENSITIVITY OF FLY MOVEMENT-DETECTING NEURONS
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DOI：
10.1016/0042-6989(80)90030-9
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发表时间：
1980-01-01
期刊：
影响因子：
1.8
通讯作者：
FRENCH, AS
中科院分区：
文献类型：
--
作者：
DVORAK, D;SRINIVASAN, MV;FRENCH, AS
利用运动正弦波光栅测量了小叶板方向选择性运动检测神经元的对比敏感度函数（CSF）。在高亮度下，CSF在0.05 c/deg [每度循环]处达到峰值。灵敏度在0.02 c/deg和0.15 c/deg时降低40%，在0.4 c/deg时降低90%。在低亮度下，高频衰减向较低频率移动，低频衰减消失。结果表明，无脊椎动物和脊椎动物的视觉系统分析空间信息的方式之间的相似之处。
Contrast sensitivity functions (CSF) were measured for directionally-selective movement-detecting neurons of the lobula plate by using moving sine-wave gratings. At high luminance, the CSF peaks at 0.05 c/deg [cycles per degree]. Sensitivity is reduced by 40% at 0.02 c/deg and 0.15 c/deg, and by 90% at 0.4 c/deg. At low luminance the high-frequency falloff shifts toward lower frequencies and the low-frequency falloff disappears. Results indicate parallels between the ways in which invertebrate and vertebrate visual systems analyze spatial information.