124 



Effect of Alcohol on Psycho-Physiological Functions. 



a lengthened respiration. This is not true in the second and third 

 periods for the pre-tetanus condition, in which we have —3.8 and per 

 cent, but applies to the third and fourth periods of pre-tetanus ( + 19.2 

 and +23.1 per cent) and for all periods of post-tetanus ( + 15.1, +12.1, 

 + 15.1, and +15.1 per cent). 



The respiration data taken with pulse records 1 to 7, inclusive, of the 

 experimental cycle are recorded in table 25. Here the averages for the 

 first period are the same for alcohol and non-alcohol days, i. e. , 3 .0 seconds. 

 The average for all of the normal periods, exclusive of the first, is 2.9 

 seconds, while the comparison average for alcohol days is 2.8 seconds. 

 The average respiration on the alcohol days in periods 2 and 3 is a 

 little longer than for the same periods on the normal days, but the 

 difference is insignificant. The effect of alcohol as shown by per cent 

 differences is +3.3, 0, -13.3, -16.7, and per cent for periods 2 to 6, 

 respectively. On the whole our supplementary data for respiration- 

 rate, like those collected by Higgins, 1 show no definite alcohol effect. 



Table 25. — Length of respiration during pulse measurements Nos. 1 to 7 of experimental cycle. 



[Values given in seconds.] 



Kind of experiment 

 and date. 



Period 

 1. 



Av. 



Period 

 2. 



Av. Diff. 



Av. Diff. 



Period 

 3. 



Period 



4. 



Av. Diff. 



Period 

 5. 



Av. Diff. 



Period 



Av. Diff. 



Av. 

 length. 



Av. 

 diff. 



Normal : 



June 29 



July 1 



July 3 



Average 



Alcohol : 



June 30 



July 2 



July 4 



Average 



Effect of alcohol : 



Differences. . . . 



Per cent differ- 



3.2 

 2.6 

 3.1 

 3 



3.5 

 2.8 

 2.8 

 3 



3.0 

 2.7 

 2.8 

 2.8 



2.8 

 3.2 

 3.0 

 3.0 



-0.2 

 + .1 



- .3 



- .1 



- .7 

 + .4 

 + .2 







+ .1 

 +3 3 



2.7 

 2.8 

 2.9 

 2.8 



3.3 



2.6 

 2.7 

 2.9 



-0.5 

 + .2 



- .2 



- .2 



- .2 



- .2 



- .1 



- .2 





 



3.1 



3.2 



.8 



3 



2.8 

 2.8 

 2.6 

 2.7 



- 0.1 



+ .6 



- .3 



+ 



- 

 



- .2 



- .3 



- .4 

 -13 3 



2.6 

 3.3 

 2.9 



2.7 

 2.8 

 2.5 

 2.7 





 + .2 

 + -1 



• .3 

 .4 



5 



16.7 



2.9 

 2.9 



-0.2 

 - .2 



2.6 

 2.6 

 2.6 



- .2 



- .2 



- .2 





 



2.9 

 2.8 

 2.9 

 2.9 



2.9 

 2.8 

 2.7 

 2.8 



-0.3 

 + -2 



- .1 



- .1 



- .6 

 







- .2 



1 Higgins, Journ. Pharm. and Exp. Ther., 1917, 9, p. 441. 



