Thalamic subnetworks as units of function.
Thalamic subnetworks as units of function.
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DOI:
10.1038/s41593-021-00996-1
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发表时间:
2022-03
影响因子:
25
通讯作者:
Feng, Guoping
中科院分区:
文献类型:
--
作者:
Roy, Dheeraj S.;Zhang, Ying;Halassa, Michael M.;Feng, Guoping
The thalamus engages in various functions including sensory processing, attention, decision-making, and memory. Classically, this diversity of function had been attributed to its nuclear organization, with each thalamic nucleus performing a well-defined function. Here, we highlight recent studies that used state-of-the-art expression profiling, which have revealed gene-expression gradients at the single-cell level within and across thalamic nuclei. These gradients, combined with anatomical tracing and physiological analyses, point to a previously unappreciated heterogeneity and redefine thalamic units of function on the basis of unique input/output connectivity patterns and gene expression. We propose that thalamic subnetworks, defined by the intersection of genetics, connectivity, and computation, provide a more appropriate level of functional description; this notion is supported by behavioral phenotypes resulting from appropriately tailored perturbations. We provide several examples of thalamic subnetworks and suggest how this new perspective may both propel progress in basic neuroscience and reveal unique targets with therapeutic potential.
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