| Induction of LTP in rat primary visual cortex: tetanus parameters. | |
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MedLine Citation:
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PMID: 2720377 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Long-term potentiation (LTP), intensively studied in the hippocampus as a possible mnemonic device, has begun to be studied in the neocortex. In this study the effects of varying tetanic stimulus parameters on LTP of field potentials recorded from layer II/III induced by white matter stimulation in the in vitro rat visual cortical slice were examined. Low intensity tetanus was more effective in producing LTP than high-intensity tetanus, although single pulses of very high intensity reliably resulted in LTP. LTP consistently occurred following 2 Hz-60 min, or 100 Hz-10 min tetanus; whereas, 10 min of 7 and 25 Hz tetanus usually resulted in long-lasting depression. Although no obvious rule related tetanus frequency and duration to the incidence of LTP, an inverted-U relationship was found between tetanus frequency and LTP magnitude. |
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Authors:
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R L Berry; T J Teyler; T Z Han |
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Publication Detail:
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Type: In Vitro; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Brain research Volume: 481 ISSN: 0006-8993 ISO Abbreviation: Brain Res. Publication Date: 1989 Mar |
Date Detail:
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Created Date: 1989-06-30 Completed Date: 1989-06-30 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0045503 Medline TA: Brain Res Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 221-7 Citation Subset: IM |
Affiliation:
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Neurobiology Department, Northeastern Ohio Universities College of Medicine, Rootstown 44272. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Electric Stimulation Female Male Rats Reaction Time / physiology Visual Cortex / physiology* |
| Grant Support | |
ID/Acronym/Agency:
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DA03755/DA/NIDA NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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