Functional cortical source imaging from simultaneously recorded ERP and fMRI

Chang Hwan Im, Zhongming Liu, Nanyin Zhang, Wei Chen, Bin He

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Feasibility of continuously and simultaneously recording visual evoked potentials (VEPs) with fMRI was assessed by quantitatively comparing cortical source images by means of receiver operating characteristic (ROC) curve analysis. The averaged EEG source images coincided well with simultaneously acquired fMRI activations. Strong correlation was found between the cortical source images of VEPs recorded inside and outside the scanner. Application of fMRI prior information strengthened correlation between estimated source images as well as resulted in source estimates with higher spatial resolution. The present results demonstrate that reliable cortical source images can be acquired during simultaneous fMRI scanning and they may be used for multimodal functional source imaging studies.

Original languageEnglish (US)
Pages (from-to)118-123
Number of pages6
JournalJournal of Neuroscience Methods
Volume157
Issue number1
DOIs
StatePublished - Oct 15 2006

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

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