Stratton L O, Kastin A J
Pharmacol Biochem Behav. 1975 Sep-Oct;3(5):901-4. doi: 10.1016/0091-3057(75)90124-0.
After daily injections of melanocyte stimulating hormone (MSH), MSH-release inhibiting factor (MIF), or diluent albino rats ran a 12 choice Warden maze for a palatable food reward. Rats receiving the hormones had shorter latencies and made fewer errors than controls during learning but, unlike results with simple tasks, there were no differences during extinction. The results demonstrated that both MSH and MIF-I could facilitate the acquisition of an appetitive task which seemed of sufficient complexity to emphasize differences in performance.
在每日注射促黑素细胞激素（MSH）、促黑素释放抑制因子（MIF）或稀释剂后，白化大鼠在一个有12种选择的沃登迷宫中奔跑，以获取美味食物奖励。在学习过程中，接受激素注射的大鼠比对照组的潜伏期更短，犯错更少，但与简单任务的结果不同，在消退过程中没有差异。结果表明，MSH和MIF-I都可以促进一项似乎足够复杂以突出表现差异的食欲性任务的习得。
