1. Differentiation of two reticulo-hypothalamic systems regulating hippocampal activity;Anchel;Electroencephalogr. Clin. Neurophysiol.,1972
2. Activation of the dentate area by septal stimulation;Andersen;Acta Physiol. Scand.,1961
3. Hippocampal theta activity and behavior—A review;Bennett;Comm. Behav. Biol.,1971
4. Activity of midbrain reticular formation units during conditioned emotional response;Best,1973
5. Conditioned responses in wakeful and sleeping cats;Buendia;Electroencephalogr. Clin. Neurophysiol. Suppl.,1963