ERP correlates of Remember/Know decisions: association with the late posterior negativity.
A number of studies have utilized the Remember/Know paradigm to determine event-related potential (ERP) correlates of recollection and familiarity. However, no prior work has been specifically directed at examining the processing involved in making the Remember/Know distinction. The following study employed a two-step recognition memory test in which participants first decided whether they recognized a word from a prior study list (Old/New decision); if they did, they then determined whether it was recognized on the basis of recollection ('Remember' responses) or familiarity ('Know' responses). By time-locking ERPs to the initial Old/New decision, processing related to making the introspective Remember/Know judgment was isolated. This methodology revealed a posterior negativity that was largest for 'Remember' responses. Previous work has described a late posterior negativity which appears to be related to the search for and recapitulation of study details. Such processing may be critical in making Remember/Know determinations.
Wolk
David A
DA
Alzheimer's Disease Research Center, Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA.
Schacter
Daniel L
DL
Lygizos
Melissa
M
Sen
N Mandu
NM
Chong
Hyemi
H
Holcomb
Phillip J
PJ
Daffner
Kirk R
KR
Budson
Andrew E
AE
D000293:Adolescent; D000328:Adult; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology*; D003265:Contingent Negative Variation / Q000502:physiology*; D003657:Decision Making / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology; D005260:Female; D006801:Humans; D007600:Judgment; D008297:Male; D011939:Mental Recall / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D012153:Retention, Psychology / Q000502:physiology*; D014706:Verbal Learning / Q000502:physiology*