198 



H. DIAMANT AND OTHERS 



responses are in good accordance with the relative sweetness of sugars 

 obtained in experiments on man (see v. Skramhk, 1926 ; Andersen and 

 Zotterman, 1962). 



Alcohol 



We have only one series of alcohol tests on the chorda tympani of man. 

 The integrated response of such a series (Fig. 6) shows that alcohol from 

 0.5 to 2 M produced a small and rapidly declining response. At concentra- 

 tions above 3 m, the alcohol elicits not only a considerably stronger initial 



100 100 



19/1 1962 



3/8 1962 



Fig. 5. Diagrams showing the relative peak height of the electrical response 

 of the chorda tympani in two subjects to the application of various sugars to the 



tongue. 



^v^-- 



.^VA>V 



10 M Al,:ohol 



5 M 



Time 



--2 M 

 .... 1 M 

 0.5 M 



1 sec 



Fig. 6. Integrated responses of the human chorda tympani to the application 

 to the tongue of alcohol solutions of varying molarity. Time in seconds. 



response but also a long lasting afterdischarge. This afterdischarge slowly 

 increases to levels even higher than the initial peak value of the integrated 

 response (Fig. 6). 



