title: Comparison between hypothalamic multiple-unit activity and corticotropic function after bilateral destruction of the hippocampus.
abstract: Multiple unit activity (MUA) was recorded from the adrenocorticotropic area (n. posterior medialis hypothalami, PMH) of unrestrained resting pigeons throughout the 24 h period and compared with plasma corticosterone levels (B). Bilateral electrolytic lesions of the hippocampus suppressed diurnal variations of MUA and B. Both parameters were stabilized at a steady high level whereas complete neural isolation of the basal hypothalamus led to stabilized intermediate plasma B level and MUA pattern.
mesh_terms: D000302:Adrenal Cortex / Q000502:physiology*; D000818:Animals; D001931:Brain Mapping; D002940:Circadian Rhythm; D010856:Columbidae / Q000502:physiology*; D003345:Corticosterone / Q000097:blood*; D004594:Electrophysiology; D005260:Female; D006624:Hippocampus / Q000502:physiology*; D007031:Hypothalamus / Q000502:physiology*; D008297:Male
chemical_list: D003345:Corticosterone