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Paper Abstract and Keywords
Presentation 2017-01-28 10:20
Phase locking of local field potential and its time course in early visual cortex
Keita Fukudome, Takahiro Sonoda, Jun-ya Okamura, Gang Wang (Kagoshima Univ.) MBE2016-75
Abstract (in Japanese) (See Japanese page) 
(in English) Depending on signal frequency, electrophysiological extracellular activities recorded by microelectrodes include relatively high frequency component spikes and low frequency component local field potentials (LFP)． In the present study, we focused on stimulus locked synchronization of LFP activities in separated recording sites． Phase synchronization of LFP in early visual cortex of cat was investigated using Phase-Locking Value (PLV)． In cat early visual cortex, we previously reported two stimulus locked PLV components in the frequency band of 45-55 Hz: an early component appearing at about150 ms after stimulus presentation and a sustained component from 150 ms to 1000 ms． In the present study, we extended the frequency band for analysis so that to cover 40 Hz or gamma band which has been frequently reported as the frequency band demonstrating physiological function related synchronization or de-synchronization． Three characteristic components were found in the PLV． Each component showed tuning to frequency． Functional roles of these three components were discussed．
Keyword (in Japanese) (See Japanese page) 
(in English) electrophysiology / early visual cortex / local field potentials / phase locking value / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 435, MBE2016-75, pp. 31-34, Jan. 2017.
Paper # MBE2016-75 
Date of Issue 2017-01-20 (MBE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Conference Information
Committee MBE  
Conference Date 2017-01-27 - 2017-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2017-01-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Phase locking of local field potential and its time course in early visual cortex 
Sub Title (in English)  
Keyword(1) electrophysiology  
Keyword(2) early visual cortex  
Keyword(3) local field potentials  
Keyword(4) phase locking value  
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1st Author's Name Keita Fukudome  
1st Author's Affiliation Kagoshima University (Kagoshima Univ.)
2nd Author's Name Takahiro Sonoda  
2nd Author's Affiliation Kagoshima University (Kagoshima Univ.)
3rd Author's Name Jun-ya Okamura  
3rd Author's Affiliation Kagoshima University (Kagoshima Univ.)
4th Author's Name Gang Wang  
4th Author's Affiliation Kagoshima University (Kagoshima Univ.)
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Speaker Author-1 
Date Time 2017-01-28 10:20:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2016-75 
Volume (vol) vol.116 
Number (no) no.435 
Page pp.31-34 
#Pages 4 
Date of Issue 2017-01-20 (MBE) 

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