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Estimating Single-Trial Responses in EEGAccurate characterization of single-trial field potential responses is critical from a number of perspectives. For example, it allows differentiation of an evoked response from ongoing EEG. We previously developed the multiple component Event Related Potential (mcERP) algorithm to improve resolution of the single-trial evoked response. The mcERP model states that multiple components, each specified by a stereotypic waveform varying in latency and amplitude from trial to trial, comprise the evoked response. Application of the mcERP algorithm to simulated data with three independent, synthetic components has shown that the model is capable of separating these components and estimating their variability. Application of the model to single trial, visual evoked potentials recorded simultaneously from all V1 laminae in an awake, fixating macaque yielded local and far-field components. Certain local components estimated by the model were distributed in both granular and supragranular laminae. This suggests a linear coupling between the responses of thalamo-recipient neuronal ensembles and subsequent responses of supragranular neuronal ensembles, as predicted by the feedforward anatomy of V1. Our results indicate that the mcERP algorithm provides a valid estimation of single-trial responses. This will enable analyses that depend on trial-to-trial variations and those that require separation of the evoked response from background EEG rhythms
Document ID
20020091826
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Shah, A. S.
(Albert Einstein Coll. of Medicine Bronx, NY United States)
Knuth, K. H.
(NASA Ames Research Center Moffett Field, CA United States)
Truccolo, W. A.
(Brown Univ. Providence, RI United States)
Mehta, A. D.
(Albert Einstein Coll. of Medicine Bronx, NY United States)
Fu, K. G.
(Albert Einstein Coll. of Medicine Bronx, NY United States)
Johnston, T. A.
(Albert Einstein Coll. of Medicine Bronx, NY United States)
Ding, M.
(Florida Atlantic Univ. Boca Raton, FL United States)
Bressler, S. L.
(Florida Atlantic Univ. Boca Raton, FL United States)
Schroeder, C. E.
(Albert Einstein Coll. of Medicine Bronx, NY United States)
Clancy, Daniel
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Aerospace Medicine
Meeting Information
Meeting: Society for Neuroscience 2002
Location: Orlando, FL
Country: United States
Start Date: November 2, 2002
End Date: November 7, 2002
Funding Number(s)
OTHER: MH60358
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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