Harvard Psychological Studies, Volume 1 - Containing Sixteen Experimental Investigations from the Harvard Psychological Laboratory. by Various
page 144 of 880 (16%)
page 144 of 880 (16%)
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_Sh._ 5.32 5.32 60
_Hs._ 4.40 6.80 60 It will be noticed that _Hs_ shows a slightly wider divergence than before, while _Sh_ pursues the even tenor of his way as usual. Series were next obtained by employing the first and second fingers on one hand in exactly the same way as the middle fingers of the two hands were previously employed, the orders of stimulation being 1, 1, 2, and 1, 2, 2. The results of sixty series on Subject _Hs_ give the values of average _ET_ as 4.8 secs. for 1, 1, 2, and 6.23 sees, for 1, 2, 2, _ST_ being 5.0 secs., showing less divergence than in the preceding work. These experiments were all made during the first year's work. They show that in most cases a change in the locality stimulated influences the estimation of the time interval, but since the details of that influence do not appear so definitely as might be desired, the ground was gone over again in a little different way at the beginning of the present year. A somewhat more serviceable instrument for time measurements was employed, consisting of a disc provided with four rows of sockets in which pegs were inserted at appropriate angular intervals, so that their contact with fixed levers during the revolution of the disc closed an electric circuit at predetermined time intervals. The disc was rotated at a uniform speed by an electric motor. Experiments were made by stimulation of the following localities: (1) |
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