the firing of cells within other monoaminergic nuclei including the locus coeruleus was unrelated or only loosely related to states of hippocampal synchronization or desynchronization ( sheu et al. , 1974 ; chu and bloom , 1973 , 1974 ; hobson et al. , 1975 ; foote and bloom , 1979 ; aston-jones and bloom , 1981 ; heym et al . 1981 ) .
C0007634
the
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nuclei