Cortical potential imaging of episodic memory encoding

Jie Lian, Abraham Goldstein, Emanuel Donchin, Bin He

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Previous findings suggest that episodic memory encoding is subserved by different brain structures that interplay and transform experience into memories. The present study aims to identify topographic location of the underlying neural generators, and correlate their activities with the subsequent memory effect, using electrophysiological neuroimaging of the event-related potentials (ERPs) recorded from 11 healthy subjects participating in word encoding tasks. Cortical potentials were imaged noninvasively from scalp ERPs. Different levels of brain activation were found in the left inferior prefrontal, left temporal and left parietal lobes with different latencies after onset of event. It is concluded that these regions work jointly across both spatial and temporal domains to promote verbal memory formation.

Original languageEnglish
Pages (from-to)29-36
Number of pages8
JournalBrain Topography
Volume15
Issue number1
DOIs
StatePublished - Sep 2002

Bibliographical note

Funding Information:
* Department of Bioengineering, University of Illinois at Chicago, USA. +Department of Psychology, Bar-Ilan University, Israel. ^Department of Psychology, University of Illinois at Urbana-Champaign, USA. Accepted for publication May 24, 2002. This work is supported by NSF CAREER Award BES-9875344, NIH-MH19554, and a grant from IRIB Program. Correspondence and reprint requests should be addressed to Bin He, Ph.D., University of Illinois at Chicago, M/C 063, SEO 218, 851 South Morgan Street, Chicago, IL 60607, USA. Fax: (312) 996-5921 E-mail: bhe@uic.edu Copyright © 2002 Human Sciences Press, Inc.

Keywords

  • Brain mapping
  • Cortical potential imaging
  • Episodic memory encoding
  • Event-related potential
  • P300

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