CUTANEOUS AND INTERNAL SENSATIONS 



1055 



which have been shown to coincide with the hunger pains (Cannon 

 and Washburn). 



Carlson was able in observations on a man with a permanent 

 gastric fistula to confirm this coincidence. Even when the empty 



Fig. 449. Commencement of Gastric Hunger Contractions (the Large Elevations) 

 in a Man. At x the belt was tightened and the hunger contractions inhibited. 

 To be read from left to right (Carlson and Lewis). 



stomach was artificially caused to contract by distending it with a 

 balloon, the man experienced a typical hunger pain. During his 

 own five days' fast Carlson recorded these contractions by means 



Fig. 450. Gastric Hunger Contractions in a Man at a More Advanced and Intense 

 Stage than in Fig. 449. Tightening of the belt at x did not stop the con- 

 tractions, which ran the usual course to their termination. To be read from 

 left to right (Carlson and Lewis). 



of a small balloon attached to a rubber tube, which was swallowed 

 and allowed to remain in the stomach. The tube was connected 

 to a recording apparatus. It was found possible to go to sleep 

 with the balloon in the stomach, and to obtain a record all through 



