descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 1989 English Publisher:Elsevier BVJournal:Brain Research, volume 504, pages 161-164 (issn: 0006-8993,

Authors: Benjamin Rusak; D.X. Zhang;

doi: 10.1016/0006-8993(89)91617-x

pmid: 2688831

Photic sensitivity of geniculate neurons that project to the suprachiasmatic nuclei or the contralateral geniculate

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Abstract

We applied tests of antidromic activation to identify cells in the hamster intergeniculate leaflet (IGL) that project to either the suprachiasmatic nucleus (SCN) or the contralateral IGL. IGL cells projecting to these targets were tested for photic responses; most showed sustained activation, while a few were suppressed by retinal illumination. Stimulation of one IGL typically suppressed firing in contralateral IGL cells and inhibited responses to immediately succeeding photic stimulation.

Related Organizations

Dalhousie University
Canada

Keywords

Mesocricetus, Cricetinae, Action Potentials, Animals, Geniculate Bodies, Suprachiasmatic Nucleus, Visual Pathways, Photic Stimulation

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