SIMPLEST NEURAL ARCS. 



71 



SUMMARY OF THE EFFECT OF ALCOHOL ON THE PROTECTIVE LID-REFLEX. 



(1) Summaries of the effects of alcohol computed according to the 

 usual formulae are contained in table 6. From this table, summary of 

 the normal subjects, it appears that 30 c.c. alcohol increased the latent 

 time of the response of the first stimulus in 4 out of 6 subjects by an 



TABLE 6. Summary of the effect of alcohol on the protective lid-reflex. 

 [R' and R" are given in thousandths of a second.] 



J 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 average difference divided by average of the cor- 

 responding first periods. 



"Illegible. 



average of 5.9 per cent. At the same time the extent of movement 

 was decreased in 5 out of 6 subjects by an average of 10.7 per cent. 

 Similarly 45 c.c. alcohol increased the latent time of the first reflex 

 9.5 per cent, and decreased the extent of the movement 28.5 per cent. 

 In this case there is but one exception out of 6 subjects. 



