TY - RPRT TI - A conditioned place preference for heroin is signaled by increased dopamine and direct pathway activity and decreased indirect pathway activity in the nucleus accumbens AU - O'Neal, T. J. AU - Bernstein, M. X. AU - MacDougall, D. J. AU - Ferguson, S. M. PY - 2021 DO - 10.1101/2021.07.14.452340 UR - https://www.biorxiv.org/content/10.1101/2021.07.14.452340v1 ID - 10.1101/2021.07.14.452340 ER -