固定性眼动作为高视敏度的积极感觉
Trang-Anh E Nghiem1,2, Jenny L Witten3, Oscar Dufour1,2
1Département de Physique, Ecole Normale Supérieure, Université Paris Sciences et Lettres, Centre National de la Recherche Scientifique, Sorbonne Université, Université de Paris, Paris 75005, France.
概括
固定性眼动 (FEM) 造成视网膜动,但悖论地提高了人类的视力敏度. 我们的研究显示,FEM优化视网膜编码,通过将运动幅度保持在有利的范围内来改善细节的感知.
科学领域:
- 神经科学是一个神经科学.
- 计算视觉 计算机视觉 计算机视觉
- 眼科医生 眼科 眼科
背景情况:
- 感知和行动是相互关联的,自我运动会影响我们的世界观.
- 固定性眼动 (FEM),虽然是不自愿的,但会产生视网膜动,可能会损害神经编码.
- 经验证据表明,FEM可能会有益,而不是有害,细节感知,创造一个悖论.
研究的目的:
- 解决固定眼动 (FEM) 如何影响人类视觉知觉的悖论.
- 确定FEM改善或损害视网膜编码和视觉敏度的条件.
- 为了建模FEM,视网膜编码和视觉敏度之间的关系.
主要方法:
- 使用FEM模拟视网膜活动的理想贝叶斯分类器开发了一个计算模型.
- 直接比较模型预测与人类受试者在视觉敏度任务中的表现.
- 利用高分辨率的眼睛跟踪与自适应光学扫描激光眼镜来监测经验FEM.
主要成果:
- 该模型量化预测了实验观察结果,证明了FEM如何促进视网膜信息编码.
- FEM引入了变异性,但也预处理视觉输入,增强视网膜质细胞活动.
- 人类受试者的FEM振幅保持在接近最佳的范围内,最大限度地提高视力敏度的好处.
结论:
- 感知从行动中获益,即使在固定性眼动的规模上也是如此.
- 通过调节视网膜输入,FEM在优化视觉敏度方面发挥着至关重要的作用.
- 了解动作 (FEM) 和感知之间的相互作用是解释视觉处理的关键.
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