EFFECTS OF DEPRIVATION OF OXYGEN 



213 



O. %> 



.Pul -----Resp. Hi decil ptr min. ^ SysL B. P. 



: Pulse Pressure Accora. in mm. Convergence in mm. 



B choloslcal Derfor.-jtu.cc 



April 30, 1919. No. 6864, first lieutenant, Air Service, twenty-two, single, 

 undergraduate student. 



Five hundred hours flying, 450 overseas, 100 over lines; no crashes or 

 combats reported. 



Run was preceded by 13 minutes' rebreai>hing, during which the oxygen was 

 replenished as consumed. 



Initial performance, rapid, accurate. Improvement from 7th minute under 

 diminution of O 2 . Confused at beginning of set presented in 17th minute made 

 several errors which he paused to correct. Next performance improved. Inac- 

 curacy manifested from 23d to 24th minute and increasing slowness from 26th to 

 27th. Removed by clinician before reaching complete psychological breakdown. 



PSTCHOBIOLOGY, VOL. II, NO. 3 



