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  Excitatory and Inhibitory Process observed by fMRI and SEP in rat somatosensory cortex

Nagaoka, T., Kennan, R., Netsiri, C., Avdievich, N., Hetherington, H., & Ogawa, S. (2003). Excitatory and Inhibitory Process observed by fMRI and SEP in rat somatosensory cortex. Poster presented at 11th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2003), Toronto, ON, Canada.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-778B-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-778C-8
Genre: Poster

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 Creators:
Nagaoka, T, Author
Kennan, RP, Author
Netsiri, C, Author
Avdievich, NI1, Author              
Hetherington, HP, Author
Ogawa, S, Author
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1External Organizations, ou_persistent22              

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 Abstract: To date fMRI has been primarily interpreted in terms of neural activation by excitatory inputs. Neural systems are clearly controlled by both excitatory and inhibitory input, and it can be defined all neuronal process involves both inputs. Nevertheless, the mechanism of this interaction has not been clarified yet. The objective of this report is to clarify this mechanism of inhibitory and excitatory interactions by using fMRI and SEP in rat somatosensory cortex. Cross-hemispheric inhibition was consistently observed at 20-140msec in inter stimulus interval at low current, while an excitatory reaction was detected at 167-400msec only in 1.5mA in current.

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 Dates: 2003-07
 Publication Status: Published in print
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Title: 11th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2003)
Place of Event: Toronto, ON, Canada
Start-/End Date: 2003-07-10 - 2003-07-16
Invited: Yes

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Title: 11th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2003)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 1867 Start / End Page: 364 Identifier: ISSN: 1545-4428