Learning from spiny lobsters about chemosensory coding of mixtures
Learning from spiny lobsters about chemosensory coding of mixtures
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DOI：
10.1016/s0031-9384(00)00202-x
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发表时间：
2000-04-01
影响因子：
2.9
通讯作者：
Derby, CD
中科院分区：
文献类型：
--
作者：
Derby, CD
外周嗅觉系统的加勒比多刺龙虾Panulirus argus和相关的十足类甲壳动物的研究，帮助我们了解混合物的编码机制，其中一些讨论在这篇评论。虽然龙虾嗅觉系统中的细胞数量比脊椎动物的嗅觉系统少得多，但它是一个高度复杂的系统。该嗅觉系统的受体神经元（RN）是复杂的处理器，其不能被分类为离散的细胞类型，而是具有多种反应特征。每个RN可以具有不同类型的受体蛋白、第二信使和/或离子通道，这无疑有助于这些神经元的功能多样性，并使它们成为复杂的外周整合剂。RNs可能将混合物的质量信息编码为分布式或群体代码，为天然食物刺激的行为区分提供了基础。一系列二元混合物的混合比的分布式代码的分析表明，个别化合物的质量可能不会失去混合时。这种外围处理允许多刺龙虾感知复杂的气味作为一组元素线索，如果组件的显着性足够高。(C)2000 Elsevier Science Inc. All rights reserved.
Studies of the peripheral olfactory system of the Caribbean spiny lobster Panulirus argus and related decapod crustaceans have helped us understand mechanisms of coding of mixtures, some of which are discussed in this review. Although the number of cells in the lobster's olfactory system is much lower than in vertebrate olfactory systems, it is a highly complex system. The receptor neurons (RNs) of this olfactory system are complex processors that cannot be categorized into discrete cell types, but rather have a diversity of response profiles. Each RN can have different types of receptor proteins, second messengers, and/or ion channels, which undoubtedly contributes to the functional diversity of these neurons and makes them complex peripheral integrators. The RNs probably encode information about the quality of mixtures as a distributed or population code, providing a basis for behavioral discrimination of natural food stimuli. Analysis of distributed codes for a series of blend ratios of binary mixtures reveals that the qualities of individual compounds are probably not lost when mixed. Such peripheral processing allows spiny lobsters to perceive complex odors as a set of elemental cues if the salience of the components is sufficiently high. (C) 2000 Elsevier Science Inc. All rights reserved.