Frontiers in Cellular Neuroscience (May 2020)
TRACE: An Unbiased Method to Permanently Tag Transiently Activated Inputs
Abstract
A fundamental interest in circuit analysis is to parse out the synaptic inputs underlying a behavioral experience. Toward this aim, we have devised an unbiased strategy that specifically labels the afferent inputs that are activated by a defined stimulus in an activity-dependent manner. We validated this strategy in four brain circuits receiving known sensory inputs. This strategy, as demonstrated here, accurately identifies these inputs.
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