632. 
primary stimulus. This sensation must not, anyhow not in our ex- 
periments, be ascribed to the influence of the time that has elapsed 
since the impression. 
An analysis of the reaction-times of the 3"¢ sitting confirms this 
conelusion. We have calculated the arithmetical mean, the mean 
deviation and the median for the reaction-times of the third sitting 
in the case of a false recognition in the interval, in that of recogni- 
tion of the primary figures of which the alteration at the second 
sitting was recognized or evoked a sensation of novel experience, 
and in the case of recognition of the figures, impressed only at the 
first sitting. Finally we also calculated the reaction-times for the 
entirely new figures (Vexirversuche). They always invoked a sensation 
of novel experience, except iu five cases with D., in which was 
reported: “not recognized”. These times have been tabulated in 
thousandths of seconds : 
Arithm. mean | Mean dev. | Median 
M 674 — En 
1. False recognition W 4028 — | -- 
D 870 — a 
M 563 81 | 557 
II. Alteration recognized W 1956 950 1550 
D 709 166 | 658 
M 102 116 | 656 
III. Alteration arouses s. of | | 
novel exp. or is not rec. ke in | ee 2045 
D 828 | 142 832 
M 531 83 490 
IV. Figures impressed only | 
at Ist sitting W 1424 | 139 1036 
D 647 136 | 651 
M 622 89 611 
V. New figures Wits 1045 292 860 
D 854 206 787 
