, 1986, Behav Proc, 12, 51, 10.1016/0376-6357(86)90070-7
, 1981, Behav Proc, 6, 329, 10.1016/0376-6357(81)90050-4
, 1982, Physiol Behav, 10, 2
, 1979, Brain Res, 172, 1, 10.1016/0006-8993(79)90891-6
, 1978, Psychol Bull, 85, 944, 10.1037/0033-2909.85.5.944
, 1990, Brain Res Rev, 15, 325, 10.1016/0165-0173(90)90006-A
, 1987, Psychopharmacology, 92, 180
, 1984, NaunynSchmiedebergs Arch Pharmacol, 327, 1, 10.1007/BF00504983
, 1984, Physiol Behav, 32, 225, 10.1016/0031-9384(84)90134-3
, 1987, Physiol Behav, 41, 115, 10.1016/0031-9384(87)90139-9