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Biol Cybern. 2011 Dec;105(5-6):371-97. doi: 10.1007/s00422-012-0472-z. Epub 2012 Jan 27.

Modeling habituation in rat EEG-evoked responses via a neural mass model with feedback.

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  • 1Department of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115, USA. slaxmina@ece.neu.edu

Abstract

Habituation is a generic property of the neural response to repeated stimuli. Its strength often increases as inter-stimuli relaxation periods decrease. We propose a simple, broadly applicable control structure that enables a neural mass model of the evoked EEG response to exhibit habituated behavior. A key motivation for this investigation is the ongoing effort to develop model-based reconstruction of multi-modal functional neuroimaging data. The control structure proposed here is illustrated and validated in the context of a biophysical neural mass model, developed by Riera et al. (Hum Brain Mapp 27(11):896-914, 2006; 28(4):335-354, 2007), and of simplifications thereof, using data from rat EEG response to medial nerve stimuli presented at frequencies from 1 to 8 Hz. Performance was tested by predictions of both the response to the next stimulus based on the current one, and also of continued stimuli trains over 4-s time intervals based on the first stimulus in the interval, with similar success statistics. These tests demonstrate the ability of simple generative models to capture key features of the evoked response, including habituation.

PMID:
22282292
[PubMed - indexed for MEDLINE]
PMCID:
PMC3403689
Free PMC Article
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