Pitfalls in the dipolar model of the neocortical EEG sources

Jorge Riera; Takeshi Ogawa; Takakuni Goto; Akira Sumiyoshi; Hiroi Nonaka; Alan Evans; Ryuta Kawashima

Pitfalls in the dipolar model of the neocortical EEG sources

Jorge Riera, Takeshi Ogawa, Takakuni Goto, Akira Sumiyoshi, Hiroi Nonaka, Alan Evans, Ryuta Kawashima

Division of Brain Science

Research output: Contribution to conference › Paper › peer-review

Abstract

The EEG-based neuroimaging technique depends ultimately on the definition of its forward problem, a relationship between the underlying brain current sources and the observed electric potentials. Brain current sources on a macroscopic scale, in particular those originating in the neocortex, have been assumed dipolar in nature. In this study, we present evidence for the existence of monopolar and quadripolar current sources in the barrel cortex of Wistar rats undergoing 1Hz strong vibrissa deflections. Such evidence stems from concurrent observations of local field potentials from laminar microelectrodes arrays and high-resolution skull EEG recordings.

Original language	English
Pages	964-968
Number of pages	5
Publication status	Published - 2010
Event	2nd Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2010 - Biopolis, Singapore Duration: 2010 Dec 14 → 2010 Dec 17

Other

Other	2nd Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2010
Country/Territory	Singapore
City	Biopolis
Period	10/12/14 → 10/12/17

ASJC Scopus subject areas

Computer Networks and Communications
Information Systems

Cite this

@conference{6d125068fdc74b60bc3415dd3b4f8e94,

title = "Pitfalls in the dipolar model of the neocortical EEG sources",

abstract = "The EEG-based neuroimaging technique depends ultimately on the definition of its forward problem, a relationship between the underlying brain current sources and the observed electric potentials. Brain current sources on a macroscopic scale, in particular those originating in the neocortex, have been assumed dipolar in nature. In this study, we present evidence for the existence of monopolar and quadripolar current sources in the barrel cortex of Wistar rats undergoing 1Hz strong vibrissa deflections. Such evidence stems from concurrent observations of local field potentials from laminar microelectrodes arrays and high-resolution skull EEG recordings.",

author = "Jorge Riera and Takeshi Ogawa and Takakuni Goto and Akira Sumiyoshi and Hiroi Nonaka and Alan Evans and Ryuta Kawashima",

note = "Copyright: Copyright 2011 Elsevier B.V., All rights reserved.; 2nd Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2010 ; Conference date: 14-12-2010 Through 17-12-2010",

year = "2010",

language = "English",

pages = "964--968",

}

TY - CONF

T1 - Pitfalls in the dipolar model of the neocortical EEG sources

AU - Riera, Jorge

AU - Ogawa, Takeshi

AU - Goto, Takakuni

AU - Sumiyoshi, Akira

AU - Nonaka, Hiroi

AU - Evans, Alan

AU - Kawashima, Ryuta

PY - 2010

Y1 - 2010

N2 - The EEG-based neuroimaging technique depends ultimately on the definition of its forward problem, a relationship between the underlying brain current sources and the observed electric potentials. Brain current sources on a macroscopic scale, in particular those originating in the neocortex, have been assumed dipolar in nature. In this study, we present evidence for the existence of monopolar and quadripolar current sources in the barrel cortex of Wistar rats undergoing 1Hz strong vibrissa deflections. Such evidence stems from concurrent observations of local field potentials from laminar microelectrodes arrays and high-resolution skull EEG recordings.

AB - The EEG-based neuroimaging technique depends ultimately on the definition of its forward problem, a relationship between the underlying brain current sources and the observed electric potentials. Brain current sources on a macroscopic scale, in particular those originating in the neocortex, have been assumed dipolar in nature. In this study, we present evidence for the existence of monopolar and quadripolar current sources in the barrel cortex of Wistar rats undergoing 1Hz strong vibrissa deflections. Such evidence stems from concurrent observations of local field potentials from laminar microelectrodes arrays and high-resolution skull EEG recordings.

UR - http://www.scopus.com/inward/record.url?scp=79958099743&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79958099743&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:79958099743

SP - 964

EP - 968

T2 - 2nd Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2010

Y2 - 14 December 2010 through 17 December 2010

ER -

Pitfalls in the dipolar model of the neocortical EEG sources

Abstract

Other

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this