the intermittent stress of footshock ( 0.75 and 1.5 ma , 0.5 sec duration , at 5-sec intervals , for 5 min ) evoked intensity-dependent immediate increments in plasma ne and epi , and a delayed npy-ir response ( +0.6 +/- 0.1 pmol/ml ) .
C0028351
ne
C0014563
epi