. Clever Hans (the horse of Mr. Von Osten) a contribution to experimental animal and human psychology. Animal intelligence; Animal training; Horses; Psychology, Comparative. LABORATORY TESTS 131 thought of the number 4, but it is hardly probable that Hans would have reacted properly upon these stimuli. Mr. Schillings had thought of the same number in all three tests given in figures 10, 11 and 12. The prob- abilities are that if he had been working with the horse at the time, in the first case Hans would have reacted with three taps with the right foot and a final tap with the left, as a resul
. Clever Hans (the horse of Mr. Von Osten) a contribution to experimental animal and human psychology. Animal intelligence; Animal training; Horses; Psychology, Comparative. LABORATORY TESTS 131 thought of the number 4, but it is hardly probable that Hans would have reacted properly upon these stimuli. Mr. Schillings had thought of the same number in all three tests given in figures 10, 11 and 12. The prob- abilities are that if he had been working with the horse at the time, in the first case Hans would have reacted with three taps with the right foot and a final tap with the left, as a result of the questioner's bending forward again after the premature head-jerk at 3. In the second in-. FlG. 12. Stance the horse would probably have given four taps with the right foot, and in the third, the chances are that he would have continued to tap beyond the 4. These curves give, on the v^hole, a fair idea of the in- tensity and of the course of attention of the various subjects. Let us now consider a number of records which illus- trate the expressive movements involved in the process of thinking of such concepts as " up", " down", Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pfungst, Oskar; Rahn, Carl Leo. New York, H. Holt and company
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