1921] on The Electrical Expression of Human Emotion 



289 



in its distribution over the limbs with variations in the magnitude of 

 its exciting cause. While it is, in the main, an uncontrollable 

 phenomenon, I call to mind more than one case where to all appear- 

 ance it has been influenced at will. 



9. The distribution of the response over the body is especially 

 interesting. In normal persons it is exclusively palmar (and plantar) ; 

 the rest of the body-surface is silent. But in " sensitives " it extends 



50- 



60- 



100- 



Fig. 3. — Galvanometric record of G. de D. during the air-raid 

 of January 29, 1918. (From the Lancet.) At the tenth minute 

 of observation the noise of maroons, immediately followed by 

 that of aeroplanes and guns, broke out, and the resistance, which 

 was approximately 60,000 ohms during the first ten minutes 

 before the disturbance, fell to approximately 20,000 ohms during 

 the next fifteen minutes. (On the left hand is given the resistance 

 in thousands of ohms, and on the right the conductance in 

 gemmhos.) The measurements are as follows : — 



up the limbs and the trunk. And a border- land person, according 

 to his state of temper, can react normally to-day, but as a " sensitive " 

 to-morrow. The few spiritualistic mediums whom I have examined 

 have (with one doubtful exception) given the reaction pioper t> 

 " sensitives," i.e. in the hand and in the forearm. 



10. The diurnal variations of the reaction attracted my attention 

 at the very outset of the inquiry. I soon noticed that the same 



