Seliger D L
Psychopharmacology (Berl). 1977 Nov 15;54(3):241-2. doi: 10.1007/BF00426570.
The effects of d-amphetamine dosage (0, 1, 3, and 5 mg/kg) and shock intensity (0.2, 0.5, and 0.8 ma) on the learning of a passive avoidance response were assessed in rats. A curvilinear dose-response relationship was found at all shock levels, showing slower learning under moderate doses of d-amphetamine. The lowest shock level produced slower learning, especially in conjunction with the lowest dose of d-amphetamine. Results are discussed in terms of freezing behavior.
研究评估了d-苯丙胺剂量（0、1、3和5毫克/千克）和电击强度（0.2、0.5和0.8毫安）对大鼠被动回避反应学习的影响。在所有电击水平下均发现了曲线剂量反应关系，表明中等剂量的d-苯丙胺会导致学习速度减慢。最低的电击水平导致学习速度减慢，尤其是与最低剂量的d-苯丙胺共同作用时。根据僵住行为对结果进行了讨论。
