STUART, D. G. 
SEPTAL STIMULATION 
CAT NO. ST. 3? 
A. HYPOTHALAMIC STIMULATION 
CAT NO. ST. 34 
•^.-" 
10 Zb 50 100 200 
CAT NO. ST. 33 
25 50 100 200 10 25 50 100 20 
STIMULUS FREQUENCY (pulses/ sec. ) 
Figure 25. Frequency and locus dependent graded suppressive responses. 
370 
