Visual pattern recognition in Drosophila is invariant for retinal position
Visual pattern recognition in Drosophila is invariant for retinal position
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DOI：
10.1126/science.1099839
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发表时间：
2004-08-13
期刊：
影响因子：
56.9
通讯作者：
Heisenberg, M
中科院分区：
文献类型：
--
作者：
Tang, SM;Wolf, R;Heisenberg, M
远见依赖于恒定的机制。然而，人们对它们知之甚少，因为它们很难在自由移动的生物体中进行研究。一种这样的机制，平移不变性，使生物体能够识别视觉模式，而不依赖于它们最初看到它们的视野区域。在飞行模拟器中，被拴住的苍蝇(黑腹果蝇)可以识别视觉模式。由于他们的眼睛固定在空间中，图案可以显示在他们视野的特定部分，他们可以进行平移不变性测试。在这里，我们展示了苍蝇识别视网膜位置的图案，这些图案以前没有出现过。
Vision relies on constancy mechanisms. Yet, these are little understood, because they are difficult to investigate in freely moving organisms. One such mechanism, translation invariance, enables organisms to recognize visual patterns independent of the region of their visual field where they had originally seen them. Tethered flies ( Drosophila melanogaster) in a flight simulator can recognize visual patterns. Because their eyes are fixed in space and patterns can be displayed in defined parts of their visual field, they can be tested for translation invariance. Here, we show that flies recognize patterns at retinal positions where the patterns had not been presented before.