BRAIN IMAGINGMaterial-specific neural correlates of memory retrievalYick, Yee Y.; Wilding, Edward L.Author Information Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, Cardiff, Wales, UK Correspondence to Yee Y. Yick, School of Psychology, Cardiff University, Cardiff CF10 3AT, Wales, UK Tel: +44 0 2920875048; fax: +44 0 2920874858; e-mail: email@example.com Received 26 June 2008; accepted 1 July 2008 NeuroReport: October 8th, 2008 - Volume 19 - Issue 15 - p 1463-1467 doi: 10.1097/WNR.0b013e32830ef76f Buy SDC Metrics Abstract It is well established that the neural activity engaged during memory retrieval varies with the kinds of information that are recovered. Less well established is whether this activity reflects online recovery of information, or processes operating downstream of successful recovery. We used event-related potentials (ERPs) to adjudicate between these alternatives, emphasizing that an online recovery account would be supported if material-specific indices of successful retrieval occurred no later than a material-independent index of recollection, the left-parietal ERP old/new effect. A contrast between ERP correlates of successful memory retrieval for words and for faces revealed material-specific neural activity that onset as early as the left-parietal old/new effect. These findings suggest that the material-specific neural activity indexes the online recovery of encoded information. © 2008 Lippincott Williams & Wilkins, Inc.