272 



C. PFAFFMANN 



These same factors might be singled out in all studies of ingestive 

 behavior, whether one-bottle or two-bottle, short term or long term, in 

 need-free or deprived states, but the relative weighting of each of these 

 factors and their interactions will differ in different situations. In the 

 foregoing account, I have tried to enumerate how each of these physio- 

 logical mechanisms control the various behaviors included under the general 



120 



— 100 



^ 80 



-St: 



o 



^ 60 



D 

 O 



X 



00 40 



20 



Operated: H2O ^ 



NaCI o — 

 Controls : H^O ^_ 



N = 5 



NoCI 



W/ 



2.3 -2.0 -17 -1.3 -1.0 -7 -.3 



LogiQ Molar Cone. NaCI 



Fig. 10. Same as Fig. 9 for NaCI solutions. 



0.0 



rubric of taste preference. It is clear that we have come a long way from 

 the situation where we expect to find simple relations between the 

 physiology of taste and behavior. That there is a relation is clear, but it 

 is often more complex than appears at first glance. Sophisticated 

 behavioral analysis has made as important a contribution to our growing 

 insight among these relations as have increasingly sophisticated physio- 

 logical techniques. 



