Time Structure, Temporal Correlation and Coherence of Chemosensory Impulses Propagated Through Both Carotid Nerves in Cats

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dc.contributor.authorAlcayaga Urbina, Julio Andrés
dc.contributor.authorIturriaga Agüera, Rodrigo
dc.contributor.authorZapata, Patricio
dc.date.accessioned2017-04-25T19:23:48Z
dc.date.available2017-04-25T19:23:48Z
dc.date.issued1997
dc.description.abstractIn spontaneously breathing, pentobarbitone anesthetized cats, we recorded simultaneously the impulses in the chemosensory fibers of both carotid (sinus) nerves, to analyze the correlations between the frequencies of chemosensory discharges (f(χ)) and their activation ({df(χ)/dt}(a)) and deactivation ({df(χ)/dt}(d)) rates. We studied the chemosensory responses to brief exposures to hypoxia (100% N2; 5-s and 10-s) and hyperoxia (100% O2; 30-s), and intravenous injections of excitatory (NaCN 0.2-100 μg/kg) and inhibitory (dopamine hydrochloride 0.02-20 μg/kg) chemoreceptor agents. Hypoxia increased f(χ) with a high temporal correlation between frequency levels in both nerves. Prolonging hypoxic stimulation increased {df(χ)/dt}(d), with preservation of {df(χ)/dt}(a). Hyperoxic exposure produced highly correlated decreases in fχ in both nerves, but reduced correlation if df(χ)/dt. Increasing doses of NaCN produced analogous increments in f(χ), df(χ)/dt and their correlations, the {df(χ)/dt}
dc.format.extent8 páginas
dc.identifier.issn0716-9760
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/20017
dc.issue.numero3
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final133
dc.pagina.inicio[125]
dc.revistaBiological Researches_ES
dc.rightsacceso abierto
dc.rightsacceso abierto
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.subject.otherHipoxiaes_ES
dc.subject.otherNeuronas sensorialeses_ES
dc.subject.otherTronco encefálicoes_ES
dc.titleTime Structure, Temporal Correlation and Coherence of Chemosensory Impulses Propagated Through Both Carotid Nerves in Catses_ES
dc.typeartículo
dc.volumen30
sipa.codpersvinculados59784
sipa.codpersvinculados98016
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