ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2011
A central pacemaker that underlies the production of seasonal and sexually dimorphic social signals: functional aspects revealed by glutamate stimulation.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 21 citations in OpenAlex.
- Generation, Coordination, and Evolution of Neural Circuits for Vocal Communication.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Review
- Phase-locking behavior in a high-frequency gymnotiform weakly electric fish, Adontosternarchus.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2017Article
- A central pacemaker that underlies the production of seasonal and sexually dimorphic social signals: anatomical and electrophysiological aspects.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2011Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The cyclic enrichment of behavioral repertoires is a common event in seasonal breeders. Breeding males Brachyhypopomus gauderio produce electric organ discharge (EOD) rate modulations called chirps while females respond with interruptions. The electromotor system is commanded by a pacemaker nucleus (PN) which sets the basal rate and produces the rate modulations. We focused on identifying functional, seasonal and sexual differences in this nucleus in correlation to these differences in behavior. The in vivo response to glutamate injection in the PN was seasonal, sexually dimorphic and site specific. Non-breeding adults and breeding females injected in dorsal and ventral sites generated EOD rate increases and interruptions, respectively. Reproductive males added a conspicuous communication signal to this repertoire. They chirped repetitively when we injected glutamate in a very restricted area of the ventral-rostral nucleus, surprisingly one with a low number of relay cell somata. This study shows that the PN is functionally organized in regions in a caudal-rostral axis, besides the previously documented dorsal-ventral division. Functional regions are revealed by seasonal changes that annually provide this nucleus with the cellular mechanisms that allow the bursting activity underlying chirp production, only in males.
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