title: Neuronal activity of identified posterior hypothalamic neurons projecting to the brainstem peribrachial area of the cat.
abstract: Following horseradish peroxidase injections in the brainstem peribrachial (PB) area, massive retrograde labeling was found in the posterior hypothalamic region. Single-unit recordings posterior hypothalamic neurons with antidromically identified projections to the PB area revealed that these neurons have higher firing rates in waking than in slow-wave sleep and dissimilar discharge patterns as compared with intralaminar thalamic neurons. The results are discussed in the context of reciprocal hypothalamo-brainstem circuits.
authors.affiliation: Laboratoire de Neurophysiologie, Faculté de Médecine, Université Laval, Quebec, Canada.
authors.forename: D
authors.initials: D
authors.lastname: Paré
authors.forename: Y
authors.initials: Y
authors.lastname: Smith
authors.forename: A
authors.initials: A
authors.lastname: Parent
authors.forename: M
authors.initials: M
authors.lastname: Steriade
mesh_terms: D000200:Action Potentials; D000818:Animals; D001933:Brain Stem / Q000166:cytology / Q000502:physiology*; D002415:Cats; D006735:Horseradish Peroxidase; D007031:Hypothalamus / Q000502:physiology*; D007034:Hypothalamus, Posterior / Q000166:cytology / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology; D014851:Wakefulness / Q000502:physiology*
chemical_list: D006735:Horseradish Peroxidase