Mechanisms of Variability Underlying Odor-Guided Locomotion.
Mechanisms of Variability Underlying Odor-Guided Locomotion.
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DOI：
10.3389/fnbeh.2022.871884
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发表时间：
2022
影响因子：
3
通讯作者：
Bhandawat, Vikas
中科院分区：
文献类型：
--
作者：
Tao, Liangyu;Bhandawat, Vikas
气味介导的运动变化(气味引导的运动)是动物发现对其生存至关重要的资源的重要机制。气味引导的运动，就像大多数其他行为一样，是高度可变的。行为的可变性可能出现在执行感觉运动变换的电路的许多节点处。我们在果蝇嗅觉系统的背景下回顾了这些可变性的来源。虽然这些可变性来源很重要，但使用运动模型，我们证明了行为可变性的另一个重要因素是运动决策的随机性以及这些决策的持久性：苍蝇从分布中随机选择速度和曲率，并在较长时间内以相同的速度和曲率运动。运动中的这种随机性将导致行为的变化，即使在感觉运动变换中没有噪音。总体而言，感觉运动转换中的噪音被运动机制放大，使苍蝇的气味引导运动高度可变。
Changes in locomotion mediated by odors (odor-guided locomotion) are an important mechanism by which animals discover resources important to their survival. Odor-guided locomotion, like most other behaviors, is highly variable. Variability in behavior can arise at many nodes along the circuit that performs sensorimotor transformation. We review these sources of variability in the context of the Drosophila olfactory system. While these sources of variability are important, using a model for locomotion, we show that another important contributor to behavioral variability is the stochastic nature of decision-making during locomotion as well as the persistence of these decisions: Flies choose the speed and curvature stochastically from a distribution and locomote with the same speed and curvature for extended periods. This stochasticity in locomotion will result in variability in behavior even if there is no noise in sensorimotor transformation. Overall, the noise in sensorimotor transformation is amplified by mechanisms of locomotion making odor-guided locomotion in flies highly variable.
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DOI：
10.1073/pnas.1500804112
发表时间：
2015-05-26
影响因子：
11.1
作者：
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通讯作者：
de Bivort, Benjamin L.
影响因子：
7.7
作者：
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通讯作者：
Jefferis, Gregory S. X. E.
影响因子：
7.7
作者：
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通讯作者：
Rubin GM
影响因子：
2.5
作者：
Dacks, Andrew M.;Christensen, Thomas A.;Hildebrand, John G.
通讯作者：
Hildebrand, John G.
影响因子：
16.2
作者：
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通讯作者：
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