166 



PSYCHOLOGICAL EFFECTS OF ALCOHOL. 



There is no consistent change in the errors of fixation due to the alco- 

 hol dose. Apparently the average error after dose A was materially 

 greater than the normal error, or the error after dose B. The mean 

 variation is increased after both dose A and dose B in table 27, but this 

 change does not stand the test of the computation by differences. 



In addition to these generalizations with respect to the effect of 

 alcohol, there are other less important, but none the less interesting, 

 general tendencies of our data. The errors of fixation which occurred 

 in eye-movements to the left (adductive movements) are conspicuously 

 larger than those in the movements to the right (abductive movements) . 

 While there are occasional exceptions to this rule, it seems to apply to 

 all subjects, including the psychopathies. In general, the errors of 



TABLE 28. Summary of effect of alcohol on the eye-movements as shown by changes in the differences. 



[Time units given in thousandths of a second.] 



Effect on the average difference equals (av. 1-2, 1-3, 1-4, etc., alcohol) minus (av. 1-2, 1-3,1-4, etc., 

 normal). 



2 Effect on the percentile difference equals the effect of alcohol on the average difference divided by the 

 average of the corresponding normals of the day. 



3 No records for Subject IV. 4 No records for Subject X. 



