ネコの問題箱における定型性に関する実験的研究 (III)

行動潜時を中心として

抄録

It was already made clear in my previous study that cats' behavior immediately after escape in the problem box was stereotyped but in part variety was seen. The reason why the stereotypedness and variety occur has not yet been decidedly explained, although it has been studied by LORGE, GENGERELLI, THORNDIKE, HUNTER, SOLOMON, HULL, HEATHERS and others. E. R. GUTHRIE considered that the variety of behavior was due to the difference of the way of approaching stimulus. To clarify this variety, I used the latency between stimulus and response as an indicator. E. R. GUTHRIE & G. P. HORTON'S apparatus was used. The latency here means the time spent from the entrance of the problem box to approaching the stimulus and touching it.
Results- (1) When the stimulus was located on the left side or the right side of the problem box, the latency decreased as the trials increased ; and when located in the center, a stereotyped curve was obtained.
(2) When the conditioned stimulus was located in the center, the latency curve was generally rising ; and when on the left or the right side it was a decreasing curve.
(3) When the position of the stimulus in the box was reinforced by 10 trials-unit (3 series : left→right→center, right→center→left, and center→left→right), the latency was stereotyped, and the position habit to the first position in each series was somewhat seen.