60 



DON TUCKER 



differential nature of the responses made by these anatomically similar 

 nerves to butyric acid and amyl acetate is quite evident. The tonic (steady 

 state) olfactory response is notable at the higher concentrations of butyric 



MOLAR 



BUTYRIC 



ACID 



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 AMYL ACETATE 



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Fig. 14. Integrated vomeronasal and olfactory responses to odorants introduced 



in an aqueous solution medium. Stimulation procedure: flow at 1/3 ml /sec of 



cleaned solution was initiated. After about 1 min flow was switched to odorous 



solution for 5 of every 30 sec twice and then for 60 sec. 



acid. However, other odorants produce a similar though not so marked 

 depression at high concentrations. Both kinds of receptors, vomeronasal 

 and olfactory, developed injury discharges at the highest concentration of 

 butyric acid. Other odorants produce this effect too. 



Trigeminal Receptors and Autonomic Effectors 



Trigeminal receptors that respond to odorants appear somewhat more 

 similar to the vomeronasal receptors in the kinds of odorant to which they 



