Approximate sites of lenti-ChR2 viral injections and light-stimulation/recording sites.

<p>Panels A to C from monkey G, panel D from monkey L. The blue dots indicate approximate sites of viral injections, based on injection tracks and maximal labeling of eYFP. The red lines indicate sites where neuronal recordings coupled to light stimulation were done. The approximate interaural level of these coronal planes is indicated at the top right of each figure, according to ref <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0050808#pone.0050808-Paxinos1" target="_blank">[24]</a>. Caud: caudate; CM: centromedial nucleus of the thalamus; GPe: Globus pallidus external segment; GPi: globus pallidus internal segment; MD: Mediodorsal nucleus of the thalamus; Put: Putamen; VLa and VLp: anterior and posterior portions of the ventrolateral thalamus, respectively. Scale bar: 2 mm.