708 
PSYCHOLOGY: W. R. MILES 
Referring to one of the measurements placed in Section II of the table, 
— for example, the number of finger movements performed in 8 seconds, — 
we find that the percentages given under Periods 2 and 3 are —3.9, and 
— 4.0 (average —3.9), showing a decrease in the number of finger 
oscillations on alcohol days as compared with the normal days. This 
decrease in approximately the same degree is found in Periods 4 and 
5, while in 6 there is a change in sign, thus representing an increase in 
the number of finger oscillations. In comparison Dodge and Benedict 
find —8.9% and —15.2% the averages for the normal group and for 
Subject VI respectively. These values indicate that Subject VI in 
both series of experiments conforms to the group. 
The percentile changes in the length of the pulse cycle are nearly all 
minus, indicating a decrease in the length of the individual pulse cycle 
which of course is equivalent to an increase in pulse rate per minute. The 
effect of Alcohol in producing a faster pulse is more pronounced with 
Subject VI than for the average of the normal subjects. 
In general the various periods may be compared on the basis of the 
preponderance of plus or minus signs. In Section I, Period 2, all of the 
values are plus and range from 0.8 to 31.0, with a central tendency above 
12%. In Section II the signs for Period 2 are with one exception minus 
and show a central tendency of about 19%. It should be borne in 
mind that plus in Section I and minus in Section II have the common 
meaning of inferior performance or depression. Period 3 is clearly 
more like 2 than it is like 4, while 2 and 3 averaged may be compared 
logically with the percentages for the normal group. The signs agree 
here almost exactly, measurement for measurement, although the per- 
centages are naturally different. In the one clear case of disagreement, 
that is, eye reaction time, — 5.4% for the normal group as against + 15.9% 
for Subject VI in the second series of experiments, and —9.3% in the 
first series, it should be stated that Dodge and Benedict for this meas- 
urement found a decided practice effect for their subjects which masks 
the influence of the 30 cc. dose of alcohol. In the first series Subject 
VI is in harmony with the group. In the second series no practice 
effect is shown and the reaction time is lengthened. The plus and minus 
signs in the averages for Subject VI otherwise agree for the most part 
with his averages for Periods 2 and 3. Detailed discussion of the in- 
dividual measurements cannot be given here but wIU appear in a fuller 
report soon to be published by the Carnegie Institution of Washington. 
The two series of measurements for Subject VI taken together unmis- 
takably indicate as a result of a dose of 30 cc. of absolute alcohol a 
lengthened reflex latency with a decrease in the ampHtude of movement, 
