Document Detail

Test-item sequence affects false memory formation: an event-related potential study.
MedLine Citation:
PMID:  18155357     Owner:  NLM     Status:  MEDLINE    
False memories arise when people 'remember' experiences that have never occurred. Using the Deese-Roediger-McDermott (DRM) paradigm, researchers have demonstrated that participants tend to falsely recognize non-studied words (lures) that are associated to previously studied words. Several questions, however, remain regarding the neurocognitive basis of false memory formation. Various encoding manipulations have been shown to affect the behavioral and electrophysiological correlates of false memories, but little is known about whether false memory formation and its neurophysiological correlates are influenced by different test contexts. We recorded event-related potentials (ERPs) during the DRM paradigm, wherein the test included lures that were either preceded by semantically related words or not. Results indicated more false recognitions for lures preceded by related words than for lures that were not preceded by related words at test. Furthermore, the former elicited more positive parietal potentials at 300-600 ms relative to the latter. These findings suggest that test context critically affects behavioral and neurophysiological responses for false memory, providing further insight into the neurocognitive basis of human memory.
Jason C W Chen; Wen Li; Carmen E Westerberg; Ovid J-L Tzeng
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Publication Detail:
Type:  Journal Article     Date:  2007-11-19
Journal Detail:
Title:  Neuroscience letters     Volume:  431     ISSN:  0304-3940     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-18     Completed Date:  2008-05-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  51-6     Citation Subset:  IM    
Laboratories for Cognitive Neuroscience, National Yang-Ming University, Taipei, Taiwan.
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MeSH Terms
Brain / physiology*
Brain Mapping
Cerebral Cortex / anatomy & histology,  physiology
Evoked Potentials / physiology*
Functional Laterality / physiology
Language Tests
Memory / physiology*
Memory Disorders / physiopathology*
Neuropsychological Tests
Reaction Time / physiology
Speech Perception / physiology
Time Factors
Verbal Behavior / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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