they received intrajugular cannulae on the morning of proestrus and later between 12.00-13.00 h catecholamines - norepinephrine ( ne ; 5.3 or 15.9 micrograms ) , dopamine ( da ; 5.3 micrograms ) , epinephrine ( e ; 5.3 or 15.9 micrograms ) or vehicle ( artificial csf ) - were administered intraventricularly .
C0028351
norepinephrine
C0014563
epinephrine