Supplementary Figure 4: Schematic and validation of the retrograde AAV2/5-DIO-ChR2-eYFP in Thcre mice.
From: Stress and CRF gate neural activation of BDNF in the mesolimbic reward pathway

(a) Schematic of ChR2 into NAc and ferrule implantation into VTA of Thcre mice and timeline. (b) Confocal image showing co-expression of AAV2/5-DIO-ChR2-eYFP and TH-positive cells in VTA to NAc cells of Thcre (scale 25 μm). (c) Phasic light stimulation induced spiking in VTA-NAc DA neurons expressing AAV2/5.