brain norepinephrine levels were also higher , compared with those of saline-treated control rats , in the cerebral cortex ( sd and shr ) , amygdala ( sd ) and locus coeruleus ( wky ) after tyrosine administration , and in the amygdala ( sd ) and cerebral cortex ( shr ) after aspartame administration .
C0006104
brain
C0023951
locus coeruleus