Dynamic functional connectivity in the static connectome of Caenorhabditis elegans.
Dynamic functional connectivity in the static connectome of Caenorhabditis elegans.
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DOI:
10.1016/j.conb.2021.12.002
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发表时间:
2022-04
影响因子:
5.7
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中科院分区:
文献类型:
--
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A hallmark of adaptive behavior is the ability to flexibly respond to sensory cues, depending on context and experience. To understand how neural circuits implement this flexibility, it is critical to resolve how a static anatomical connectome can be modulated such that functional connectivity in the network can be dynamically regulated. Here, we review recent work in the roundworm Caenorhabditis elegans that is clarifying how a defined connectome can be modulated in such a manner. Recent EM studies have mapped the anatomical connectomes of many C. elegans animals, highlighting the level of stereotypy in the anatomical network. Brain-wide calcium imaging and focused studies of specified neural circuits in C. elegans have uncovered a high degree of flexibility in the functional coupling of neurons within circuits. The coupling between neurons is controlled in large part by neuromodulatory systems that act over long time scales. This then gives rise to persistent behavioral states that animals switch between, allowing them to generate adaptive behavioral responses across a range of environmental conditions. Thus, the dynamic coupling of neurons enables multiple behavioral states to be encoded in a physically stereotyped connectome.
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影响因子:
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作者:
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通讯作者:
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10.1073/pnas.1717075115
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