An interesting take of WIRED magazine on the following article in Neuron:
Millisecond-Timescale Optical Control of Neural Dynamics in the Nonhuman Primate Brain,” by Xue Han, Xiaofeng Qian, Jacob G. Bernstein, Hui-hui Zhou, Giovanni Talei Franzesi, Patrick Stern, Roderick T. Bronson, Ann M. Graybiel, Robert Desimone and Edward S. Boyden. Neuron 62, 191–198, April 30, 2009.