title: Stimulus-induced up states in the dorsal pallium of a weakly electric fish.
abstract: We investigated the response of putative novelty-detecting neurons in the pallium of an electric fish to electrosensory and acoustic stimuli. Extracellular and whole cell patch recordings were made from neurons in the dorsal pallial nucleus (DD) of Apteronotus leptorhynchus. DD neurons were typically quiescent and exhibited hyperpolarized resting membrane potentials. Stimulation induced, with a variable long latency, rapid though transient depolarization and spike discharge. The transition between resting and depolarized/spiking states resembled the transition to Up states seen in mammalian telencephalic neurons.
authors.affiliation: Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada benjaminelliott@gmail.com.
authors.forename: S Benjamin
authors.identifier: http://orcid.org/0000-0001-7768-3071
authors.initials: SB
authors.lastname: Elliott
authors.affiliation: Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada.
authors.forename: Leonard
authors.initials: L
authors.lastname: Maler
mesh_terms: D000200:Action Potentials; D000818:Animals; D004555:Electric Fish / Q000502:physiology*; D023702:Gymnotiformes; D008564:Membrane Potentials; D009474:Neurons / Q000502:physiology; D011930:Reaction Time; D013687:Telencephalon / Q000166:cytology / Q000502:physiology*
keywords: dorsal pallium; electrophysiology; up states; weakly electric fish