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Effect of realistic human head modelling on brain source distribution

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4 Author(s)
Ahn, S. ; Sch. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., Gwangju, South Korea ; Kim, D. ; Hong, J.H. ; Jun, S.C.

The accuracy of the source localisation using EEG measurements depends on the noise as well as the computational model, so the improvement of localisation performance by using a very realistic model is limited. In this reported work, the source localisation effects of various human head models with different geometrical deformation for low signal-to-noise ratio (SNR) measurement are investigated. Assuming the most dense mesh as a model without model mismatch, it was found that some error due to the model mismatch was tolerably small in the range of low SNRs less than 0 dB. This provides a cost-effective strategy of head model generation, depending on a given tolerable level of localisation error.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 18 )

Date of Publication:

August 30 2012

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