APPENDIX 1. 



275 



SECTION V. 



Correlated with the above experiments 

 there should be some investigation of the 

 perseverance of the subject, i. e., of the fatiga- 

 bility of the higher psychological controls 

 involved in persistent effort and prolonged 

 voluntary attention. 



(a) In connection with experiment 2, 

 section I, I propose reciprocal innervation of 

 one finger^to the "breaking-point," i. e., 

 where the subject stops. This might be 

 studied in connection with the "breaking 

 point" of inhibited respiration. 



(6) In connection with photographic regis- 

 tration of the eye-movements, I propose 

 persistent fixation of a given mark under 

 experimental change of the visual environ- 

 ment. 



(c) If a satisfactory analysis of the 

 McDougall test could be made, I should 

 favor its use. 



The above outline particularly disclaims 

 being a catalogue of all mental and physio- 



logical investigations that might be under- 

 taken with scientific profit. Of the infinite 

 number of possible observations, selection 

 has been made: first, on the basis of tech- 

 nique; second, on the basis of simplicity of 

 the elementary processes; and third, on the 

 basis of an attempt at a systematic explora- 

 tion of the effect of alcohol on psycho- 

 physical processes. 



The purpose in printing this outline is that 

 it may be submitted to the leading physi- 

 ologists, psychologists, physiological psy- 

 chologists, neurologists, and neuro-patholo- 

 gists in the hope that we may have the 

 benefit of any adverse criticism and any 

 suggestions for changes or additions that 

 may occur to them. It is particularly de- 

 sirable that the final program shall meet the 

 consensus of opinion of experts throughout 

 the world. Naturally, credit for suggestions 

 and changes will be given with scrupulous 

 care. 



