Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (35)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Rogers, R. L.
Right arrow Articles by Eisenberg, H. M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rogers, R. L.
Right arrow Articles by Eisenberg, H. M.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Cerebral Cortex 1993; 3:163-169
© Oxford University Press 1993

research-article

Magnetoencephalography Reveals Two Distinct Sources Associated with Late Positive Evoked Potentials during Visual Oddball Task

Robert L. Rogers, Luis F. H. Basile, Andrew C. Papanicolaou and Howard M. Eisenberg

Magnetoencephalography Laboratory, Division of Neurosurgery, The University of Texas Medical Branch, and The Transitional Learning Community Galveston, Texas 77550

The present investigation was undertaken in order to utilize magnetoencephalography to locate generator sources, modeled as equivalent current point dipoles, that account for the well-established late positive electrical potentials commonly measured along the midline (Cz, Pz, Fz, and Oz) in response to rare or task-relevant stimuli and their simultaneously recorded magnetic field components. Two simultaneous but spatially distinct sources were present in all six subjects. One source in which the magnetic flux exited and reentered the brain over the right hemisphere was localized in deep structures under the temporal cortex in the vicinity of the right hippocampal formation. The other occurred in the vicinity of the primary visual cortex in the occipital area with magnetic flux entering and exiting over the posterior aspects of the subjects' heads. These data correspond to depth and surface electrode studies that have demonstrated multiple generator sources.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Cereb CortexHome page
B. Opitz, A. Mecklinger, A.D. Friederici, and D.Y. von Cramon
The Functional Neuroanatomy of Novelty Processing: Integrating ERP and fMRI Results
Cereb Cortex, June 1, 1999; 9(4): 379 - 391.
[Abstract] [Full Text] [PDF]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.