REPRODUCTIVE BEHAVIOR I 235 



TOf "--^-^/^^*--V 



MFB 



a; 



V""' 



,'v~^^~A'''.-> 



HX)^V 



^^,'Av^Vy*^' 



i''<\J'>^>'',1'-^^\\f^^J,Wi^\^X^^^^ 



I SEC. 



^.^,\.'-/''^'>».N^/ W^•^^^..J•^» _-^ 



''.,' ^.^-.-^'^.■V.^f 





® 



■\'!'^'^"\\r-^-;-^ 



'^y-^'^^^^-.r.. !■ 





FIG. 7. Selected EEG tracings during vaginal stimulation (.-1) and 'after-reaction" {B, D) which 

 lasted 3.3 min. in an estrous cat. Dramatic changes are seen in lateral hypothalamic (HL) and 

 medial forebrain bundle (MFB) channels. C and E are, respectively, a sagittal reconstruction and 

 two cross-sections of the cat brain stem showing areas from which altered electrical activity was 

 recorded {solid triangles) and areas failing to show these changes (stippled circles). [Adapted from 

 Porter et at. (69).] 



