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Decoupling Action Potential Bias from Cortical Local Field Potentials
Joint Authors
Shamma, Shihab A.
Malaval, Nicolas
David, Stephen V.
Source
Computational Intelligence and Neuroscience
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-02-03
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Neurophysiologists have recently become interested in studying neuronal population activity through local field potential (LFP) recordings during experiments that also record the activity of single neurons.
This experimental approach differs from early LFP studies because it uses high impendence electrodes that can also isolate single neuron activity.
A possible complication for such studies is that the synaptic potentials and action potentials of the small subset of isolated neurons may contribute disproportionately to the LFP signal, biasing activity in the larger nearby neuronal population to appear synchronous and cotuned with these neurons.
To address this problem, we used linear filtering techniques to remove features correlated with spike events from LFP recordings.
This filtering procedure can be applied for well-isolated single units or multiunit activity.
We illustrate the effects of this correction in simulation and on spike data recorded from primary auditory cortex.
We find that local spiking activity can explain a significant portion of LFP power at most recording sites and demonstrate that removing the spike-correlated component can affect measurements of auditory tuning of the LFP.
American Psychological Association (APA)
David, Stephen V.& Malaval, Nicolas& Shamma, Shihab A.. 2010. Decoupling Action Potential Bias from Cortical Local Field Potentials. Computational Intelligence and Neuroscience،Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-468583
Modern Language Association (MLA)
David, Stephen V.…[et al.]. Decoupling Action Potential Bias from Cortical Local Field Potentials. Computational Intelligence and Neuroscience No. 2010 (2010), pp.1-12.
https://search.emarefa.net/detail/BIM-468583
American Medical Association (AMA)
David, Stephen V.& Malaval, Nicolas& Shamma, Shihab A.. Decoupling Action Potential Bias from Cortical Local Field Potentials. Computational Intelligence and Neuroscience. 2010. Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-468583
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468583