A model of temporal adaptation in fly motion vision

被引:24
作者
Clifford, CWG
Langley, K
机构
[1] Department of Psychology, University College London, London WC1E 6BT, Gower Street
基金
英国工程与自然科学研究理事会;
关键词
motion; adaptation; insect vision; computational model; Reichardt detector;
D O I
10.1016/0042-6989(95)00301-0
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
A computational model is proposed to account for the adaptive properties of the fly motion system. The response properties of motion-sensitive neurons in the fly are modelled using an underdamped adaptive scheme to adjust the time constants of delay filters in an array of Reichardt detectors. It is shown that the increase in both temporal resolution and sensitivity to velocity change observed following adaptation to constant motion can be understood as a consequence of local adaptation of the filter time constants on the basis of the outputs of elementary motion detectors. Copyright (C) 1996 Elsevier Science Ltd.
引用
收藏
页码:2595 / 2608
页数:14
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