Schlegel T, Hecht K
Acta Biol Med Ger. 1976;35(7):963-71.
Periodicities of conditional-reflectory processes in the minute range were measured in albino rats kept under various conditions (emotional stress, exercise, normal stall maintenance) and analyzed by different statistical procedures. It was possible in this way to judge by selected parameters of periodical processes the intensity of loads and effects of exercise. The additional use of cluster analysis for scaling the biological effectiveness of different communicative relations of the organisms proved useful.
在处于不同条件（情绪应激、运动、正常饲养）下的白化大鼠中，测量了分钟范围内条件反射过程的周期性，并通过不同的统计程序进行分析。通过这种方式，可以根据周期性过程的选定参数来判断运动负荷的强度和影响。事实证明，额外使用聚类分析来衡量生物体不同交流关系的生物学有效性是有用的。
