(A–C) Touchscreen visual discrimination training (A) increased correct responding (F2,50 = 185.25, p < 0.01, n = 26) (B) and decreased error rates (F2,50 = 161.06, p < 0.01) (C).
(D) GFP-labeled DLS AAV-expression. EP, endopeduncular nucleus; GPe, external globus pallidus; SNr, substantia nigra reticulata.
(E) Green light reduced DLS neuronal activity ex vivo (t[80] = 4.68, p < 0.01, n = 7).
(F and G) DLS photosilencing did not affect open-field locomotion (F) or real-time place preference (G).
(H–L) DLS photosilencing (H) increased early-stage percentage correct responding (t[14] = 2.40, p = 0.05, n = 7–9) (I), decreased errors (t[14] = 2.91, p < 0.01) (J), and increased percentage win-stay (t[14] = 2.92, p < 0.05) (K) and percentage lose-shift (t[14] = 2.96, p < 0.05) (L) behavior.
*p < 0.05. Data are mean ± SEM.