YOHIMBINE EARLY IN LIFE ALTERS FUNCTIONAL-PROPERTIES OF INTERHEMISPHERIC CONNECTIONS OF RAT VISUAL-CORTEX

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dc.contributor.authorSOTOMOYANO, R
dc.contributor.authorHERNANDEZ, A
dc.contributor.authorPEREZ, H
dc.contributor.authorRUIZ, S
dc.contributor.authorGALLEGUILLOS, X
dc.contributor.authorBELMAR, J
dc.date.accessioned2025-01-23T19:22:47Z
dc.date.available2025-01-23T19:22:47Z
dc.date.issued1991
dc.description.abstractIt has been shown that noradrenaline (NA) is an important regulator of normal regressive processes occurring during synaptogenesis such as cell death, axonal pruning and synaptic elimination. The present study was designed to investigate whether enhanced NA release induced by chronic yohimbine administration early in life may alter in the rat the normal pattern of functional interhemispheric connections of the visual cortex. Yohimbine administration to rats between days 5 and 16 of postnatal life (2.5 mg/kg, IP, daily) resulted in changes in the pattern of transcallosal responses evoked in the visual cortex, characterized by a reduction in the peak-to-peak amplitude as well as a reduction of the extent of projecting fields of maximal activity, when examined at 30-35 days following termination of the drug treatment regimen. The results indicate that yohimbine treatment early in life induces functional alterations in the interhemispheric connectivity of the visual areas, probably by disrupting the normal trophic role of NA during synaptogenesis.
dc.fuente.origenWOS
dc.identifier.eissn1873-2747
dc.identifier.issn0361-9230
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99103
dc.identifier.wosidWOS:A1991EX06000012
dc.issue.numero2
dc.language.isoen
dc.pagina.final263
dc.pagina.inicio259
dc.revistaBrain research bulletin
dc.rightsacceso restringido
dc.subjectYOHIMBINE
dc.subjectNORADRENALINE
dc.subjectVISUAL CORTEX
dc.subjectINTERHEMISPHERIC CONNECTIONS
dc.subjectEVOKED POTENTIALS
dc.subjectRAT
dc.subject.ods02 Zero Hunger
dc.subject.odspa02 Hambre cero
dc.titleYOHIMBINE EARLY IN LIFE ALTERS FUNCTIONAL-PROPERTIES OF INTERHEMISPHERIC CONNECTIONS OF RAT VISUAL-CORTEX
dc.typeartículo
dc.volumen26
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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