NDLI: Eeg Activities During Kindling in Frog

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Eeg Activities During Kindling in Frog

Content Provider	Scilit
Author	Ono, Kenjl Baba, Hiroshi Mori, Kazuo Sato, Kensuke
Copyright Year	1980
Description	Journal: International Journal of Neuroscience The “kindling” phenomenon was investigated in relation to the EEG activities in frog, Rana nigromaculata. Repetitive electrical stimulation to the unilateral hippocampus produced the following results: (1) Prolongation in duration of after-discharges (AD) and shortening of AD intervals; (2) Appearance and enhancing of spontaneous epileptiform discharges (SEDs), which were suppressed by isolation of hippocampus; (3) Increase in power and duration of background EEG with a specific frequency (9 Hz in the nontreated group and 5 Hz in the hippocampal commissural bisected group), which coincided with the half length of the AD intervals during the steady phase; (4) Marked increase in the late components with peak latencies of 25 and SO msec in the interhippocampal impulse responses as estimated from the bilateral background hippocampal EEG through an autoregressive model, of which the former only was suppressed by commissural section, while both were suppressed by hippocampal isolation. From the above evidences obtained in frogs, it may be inferred that the brain structures, e.g., thalamus, hypothalamus, reticular formation, etc., play an important role in kindling formation and that the alteration in background EEG generating system during kindling is closely associated with the sporadic epileptiform EEG activities.
Related Links	http://www.tandfonline.com/doi/pdf/10.3109/00207458009147573
ISSN	00207454
e-ISSN	15435245
DOI	10.3109/00207458009147573
Journal	International Journal of Neuroscience
Issue Number	1
Volume Number	11
Language	English
Publisher	Informa UK Limited
Publisher Date	1980-01-01
Access Restriction	Open
Subject Keyword	Journal: International Journal of Neuroscience Neurosciences Eeg Activities During Kindling Activities During Kindling in Frog
Content Type	Text
Subject	Neuroscience Medicine

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