Popova N V, Poletaeva I I, Romanova L G
Zh Vyssh Nerv Deiat Im I P Pavlova. 1981 May-Jun;31(3):550-6.
Ability for learning a simple food-searching reaction, and for extrapolation of a food stimulus movement has been studied in two lines of laboratory mice selected throughout 15 generations for high (H-line) and low (L-line) brain weight. It has been found that the mice from H-line learn the food-searching reaction more rapidly than those from L-line. In first presentation of the extrapolation task, the percentage of right solvings by mice from H- and L-lines does not differ from the 50%, expected for the random alternative choice. In subsequent presentations, the percentage of right solvings steadily increases in both lines, and taken over all presentations significantly exceeds the 50% random level, while the mean time of performance gradually grows shorter. Thus, no difference is observed between H- and L-lines either in solving the extrapolation task or in learning this practice, in contrast to a noticeable superiority of H-line in learning a simple motor reaction.
在经过15代选育的高脑重（H系）和低脑重（L系）两个品系的实验小鼠中，研究了它们学习简单食物搜索反应以及推断食物刺激运动的能力。结果发现，H系小鼠比L系小鼠更快地学会食物搜索反应。在首次呈现推断任务时，H系和L系小鼠正确解决问题的百分比与随机选择预期的50%没有差异。在随后的呈现中，两个品系正确解决问题的百分比都稳步增加，并且在所有呈现中显著超过50%的随机水平，而平均执行时间逐渐缩短。因此，在解决推断任务或学习这种练习方面，H系和L系之间没有观察到差异，这与H系在学习简单运动反应方面的明显优势形成对比。
