Two-photon optogenetics of dendritic spines and neural circuits.

Packer, Adam M; Peterka, Darcy S; Hirtz, Jan J; Prakash, Rohit; Deisseroth, Karl; Yuste, Rafael · Nat Methods · 2012

basic_science · Level V

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Abstract

We demonstrate a two-photon optogenetic method that generates action potentials in neurons with single-cell precision, using the red-shifted opsin C1V1(T). We applied the method to optically map synaptic circuits in mouse neocortical brain slices and to activate small dendritic regions and individual spines. Using a spatial light modulator, we split the laser beam onto several neurons and performed simultaneous optogenetic activation of selected neurons in three dimensions.

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