Yes! That is Cort Pedersen's work. He blocked mothers rats "love" for their pups by blocking oxytocin. But, before you say "see, I told ya", the interesting thing is that this blocking was PREVENTED if there was a few days of physical contact b/t mum & pup! So some other system had been ACTIVATED, which is what I'm arguing for!
He makes a distinction b/w the first response, which REQUIRES oxytocin (he called it "intiation") and that which NO LONGER required it ("maintainance"). If you permit me a direct analogy, then "initiation=infatuation" would be a prerequisite for "maintainance=love". But LOVE no longer requires "infatuation".
What a fascinating discussion! I'm NOT a psychologist, BTW (ha, not even close), just find it neat that modern science allows us to even attempt to tease apart human emotions. The old poets would either be jealous or appalled.
Anway, since we won't get any definitive answers from this, I'm prepared to give up this thread. Unless we're prepared to inject ourselves w/an oxytocin antagonist on our next date, that is. (Is it REAL?--hey, lets INJECT TO CHECK!). Sad. It would take all the guesswork out of it...
Hope this all helped DK!