Measurement of Emotive " Physiological Changes. 217 



"Bombs' 



-150 



2,000- ■ 



-100 



50 



Fig. 2. — Emotive response to the suggested idea of an air-raid. The brief interruption 

 of light marked X was made for the purpose of testing the record for parallax. 



In both records the battery (two Leclanche cells), patient, and galvanometer 

 (shunted) are in series. 



In other observations I have followed the more convenient method of placing 

 the patient in the x arm of a Wheatstone bridge and calibrating by 0-14 volt 

 whatever departure from zero (lowered resistance of x) is produced in response to the 

 emotive stimulus. 



Different subjects react differently to different stimuli, and the same 

 subject in different states of health and at different times of day reacts 

 differently to identical stimulation. 



VOL. XC. — B. 



T 



