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Many naturalistic behaviors are built from modular components that are expressed sequentially. Although striatal circuits have been implicated in action selection and implementation, the neural mechanisms that compose behavior in unrestrained animals are not well understood. Here, we record bulk and cellular neural activity in the direct and indirect pathways of dorsolateral striatum (DLS) as mice spontaneously express action sequences.
Silk/AAV-Coated Optical Fibers Can Be Used to Reliably Trigger Specific Behaviors For many optogenetic applications, a viral vector that expresses a light-activated opsin is injected into a target region, and then an optical fiber is implanted into that region for activation or inhibition of transduced neurons (Figure 1Figure 1A). This approach has several limitations. First, this procedure involves physically perturbing the brain twice.
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