Bauhaus-Universität Weimar

Experimental Psychology: A Manual of Laboratory Practice, Vol. II: Quantitative Experiments, part 2: Instructor's Manual
Titchener, Edward B.
The Psychology of Time 
at the heels of production ; so that the reader need by no means 
fear a lack of opportunity for the exercise of his own critical 
acumen. In a word, the student who knows his ‘ time sense,’ 
while from this alone he obtains a very imperfect knowledge of 
the range of experimental psychology and of the sphere of appli¬ 
cation of the psychophysical methods, has, nevertheless, a good 
idea of what experimental psychology has been and of what it 
has come to be. 
For purposes of exposition, as for purposes of study, the work 
done upon the estimation of time intervals divides, prettily 
enough, into well-marked periods. The author has tried to fur¬ 
nish, in what follows, a fairly complete bibliographical guide to 
the whole‘literature. He suggests that the student who has be¬ 
come familiar with the metric methods, their development and 
their validity, during the year in which this Course is taken may, 
in the following year, work through the literature of the time 
sense, period by period, for himself,—abstracting, summarising, 
criticising, relating, appreciating. The value of such work to the 
beginner he can confidently attest. Only, of course, the work 
must be done thoroughly : there must, e.g., be no scamping of the 
formula-disputes of the psychophysical period. A threshing of 
old straw ? Well ! one may learn better to wield the flail on that 
than if one had new wheat,—from which one could not fail, how¬ 
ever clumsy, to beat out a few grains. 
I. The Preliminary Period. 
This period contains three names :1 those of J. N. Czermak, 
who in 1857 published a programme of work to be done upon the 
‘ time sense ’ ; of E. Mach, who made experiments during the 
years 1860-1865 with the purpose of testing the validity of 
Weber’s Law ; and of K. Vierordt, whose book Der Zeitsinn nach 
Versuchen (1868) aims “to work out the various functions of 
the time sense as they are exhibited in at least the most important 
1 An incidental experiment of Thomas Reid’s (Essays on the Intellectual Powers 
of Man, iii., 1785, ch. v., sub. fin.) maybe brought into connection with the work of 
F. Martius, Z. f. klin. Medizin, xv, 1889, 536 ff. ; cf. E. Kraepelin, Deutsche med. 
Wochenschrift, 1888, no. 33,669 ff.


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