Break-points on a progressive ratio schedule reinforced by intravenous cocaine increase following depletion of forebrain serotonin
Elliot A. Loh, David C. S. RobertsVolume:
101
Language:
english
Pages:
5
DOI:
10.1007/bf02244137
Date:
June, 1990
File:
PDF, 711 KB
english, 1990