PMID: 8939477Oct 25, 1996Paper

Light induced EEG desynchronization and behavioral arousal in rats with restored retinocollicular projection by peripheral nerve graft

Neuroscience Letters
H SasakiY Fukuda

Abstract

Peripheral nerve (PN) was grafted to sectioned optic nerve and was bridged to the superior colliculus in adult rats. To test functional recovery of restored retinocollicular pathway, we examined cortical electroencephalogram (EEG) and behavioral arousal responses to light stimuli. In eight of 10 recording trials in PN grafted rats (n = 6) and in all of eight trials in normal rats (n = 5), cortical EEGs showed desynchronization to light stimuli. On the other hand, after bilateral sections of the optic nerve (n = 3) EEG desynchronization to light disappeared while it was induced by a white noise. Mean threshold duration of light for EEG desynchronization was significantly longer in the PN grafted rats (440 ms) than in normal rats (173 ms). In three of six trials in PN grafted rats (n = 4), and in four of eight trials in normal rats (n = 4), EEG desynchronization elicited by light stimulus was accompanied by behavioral arousal responses, whereas no behavioral arousal could be induced by light in blind rats (n = 3). These results strongly suggest that visual information processed through the restored retinocollicular pathway was further transmitted to the cerebral cortices and ultimately resulted in behavioral arousal of the PN gra...Continue Reading

Citations

Mar 20, 2003·Behavioural Brain Research·Yoshinari SekiHideho Arita
Jul 8, 1998·Neuroscience Letters·H SasakiY Fukuda
Aug 5, 2000·Progress in Retinal and Eye Research·P Heiduschka, S Thanos
Nov 16, 2002·Progress in Retinal and Eye Research·Masami Watanabe, Yutaka Fukuda
Aug 26, 1998·The British Journal of Ophthalmology·R E MacLaren
Nov 27, 2009·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Eugene A Kiyatkin, Michael S Smirnov
Apr 16, 2011·Psychopharmacology·Eugene A Kiyatkin, Magalie Lenoir
Jun 10, 2011·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Magalie Lenoir, Eugene A Kiyatkin
Nov 26, 2009·Cell and Tissue Research·Chi Him Eddie Ma, Jeremy S H Taylor
May 12, 2017·Frontiers in Neuroscience·Manuel Vidal-SanzMarta Agudo-Barriuso
Apr 20, 2004·Progress in Retinal and Eye Research·Henry KlassenMichael J Young

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