News Release

果蝇如何感受新的气味

Peer-Reviewed Publication

Proceedings of the National Academy of Sciences

Fly Bloom Filter

image: The fly Bloom filter stores information about which odors have been recently experienced. This filter is used to generate an analog novelty signal for odors. MBON-α'3 is a mushroom body output neuron that computes novelty responses for odors. view more 

Credit: Salk Institute for Biological Studies

科研人员报告说,通过一种称为新型探测的过程,果蝇的嗅觉系统可以区分新的气味和此前体验过的气味,而且果蝇进化出了布鲁姆过滤器的一个变种,布鲁姆过滤器被计算机科学用于确定一个元素是否属于一个集合;这组作者说,果蝇的布鲁姆过滤器可以通过确定一种气味与此前体验过的气味的相似程度以及自从体验那种气味或类似气味之后流逝的时间,从而检测气味的新型程度。

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