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Memory Distortion and Its Avoidance: An Event-Related Potentials Study on False Recognition and Correct Rejection

Memory researchers have long been captivated by the nature of memory distortions and have made efforts to identify the neural correlates of true and false memories. However, the underlying mechanisms of avoiding false memories by correctly rejecting related lures remains underexplored. In this study...

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Autores principales: Cadavid, Sara, Beato, Maria Soledad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5053520/
https://www.ncbi.nlm.nih.gov/pubmed/27711125
http://dx.doi.org/10.1371/journal.pone.0164024
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author Cadavid, Sara
Beato, Maria Soledad
author_facet Cadavid, Sara
Beato, Maria Soledad
author_sort Cadavid, Sara
collection PubMed
description Memory researchers have long been captivated by the nature of memory distortions and have made efforts to identify the neural correlates of true and false memories. However, the underlying mechanisms of avoiding false memories by correctly rejecting related lures remains underexplored. In this study, we employed a variant of the Deese/Roediger-McDermott paradigm to explore neural signatures of committing and avoiding false memories. ERP were obtained for True recognition, False recognition, Correct rejection of new items, and, more importantly, Correct rejection of related lures. With these ERP data, early-frontal, left-parietal, and late right-frontal old/new effects (associated with familiarity, recollection, and monitoring processes, respectively) were analysed. Results indicated that there were similar patterns for True and False recognition in all three old/new effects analysed in our study. Also, False recognition and Correct rejection of related lures activities seemed to share common underlying familiarity-based processes. The ERP similarities between False recognition and Correct rejection of related lures disappeared when recollection processes were examined because only False recognition presented a parietal old/new effect. This finding supported the view that actual false recollections underlie false memories, providing evidence consistent with previous behavioural research and with most ERP and neuroimaging studies. Later, with the onset of monitoring processes, False recognition and Correct rejection of related lures waveforms presented, again, clearly dissociated patterns. Specifically, False recognition and True recognition showed more positive going patterns than Correct rejection of related lures signal and Correct rejection of new items signature. Since False recognition and Correct rejection of related lures triggered familiarity-recognition processes, our results suggest that deciding which items are studied is based more on recollection processes, which are later supported by monitoring processes. Results are discussed in terms of Activation-Monitoring Framework and Fuzzy Trace-Theory, the most prominent explanatory theories of false memory raised with the Deese/Roediger-McDermott paradigm.
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spelling pubmed-50535202016-10-27 Memory Distortion and Its Avoidance: An Event-Related Potentials Study on False Recognition and Correct Rejection Cadavid, Sara Beato, Maria Soledad PLoS One Research Article Memory researchers have long been captivated by the nature of memory distortions and have made efforts to identify the neural correlates of true and false memories. However, the underlying mechanisms of avoiding false memories by correctly rejecting related lures remains underexplored. In this study, we employed a variant of the Deese/Roediger-McDermott paradigm to explore neural signatures of committing and avoiding false memories. ERP were obtained for True recognition, False recognition, Correct rejection of new items, and, more importantly, Correct rejection of related lures. With these ERP data, early-frontal, left-parietal, and late right-frontal old/new effects (associated with familiarity, recollection, and monitoring processes, respectively) were analysed. Results indicated that there were similar patterns for True and False recognition in all three old/new effects analysed in our study. Also, False recognition and Correct rejection of related lures activities seemed to share common underlying familiarity-based processes. The ERP similarities between False recognition and Correct rejection of related lures disappeared when recollection processes were examined because only False recognition presented a parietal old/new effect. This finding supported the view that actual false recollections underlie false memories, providing evidence consistent with previous behavioural research and with most ERP and neuroimaging studies. Later, with the onset of monitoring processes, False recognition and Correct rejection of related lures waveforms presented, again, clearly dissociated patterns. Specifically, False recognition and True recognition showed more positive going patterns than Correct rejection of related lures signal and Correct rejection of new items signature. Since False recognition and Correct rejection of related lures triggered familiarity-recognition processes, our results suggest that deciding which items are studied is based more on recollection processes, which are later supported by monitoring processes. Results are discussed in terms of Activation-Monitoring Framework and Fuzzy Trace-Theory, the most prominent explanatory theories of false memory raised with the Deese/Roediger-McDermott paradigm. Public Library of Science 2016-10-06 /pmc/articles/PMC5053520/ /pubmed/27711125 http://dx.doi.org/10.1371/journal.pone.0164024 Text en © 2016 Cadavid, Beato http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Cadavid, Sara
Beato, Maria Soledad
Memory Distortion and Its Avoidance: An Event-Related Potentials Study on False Recognition and Correct Rejection
title Memory Distortion and Its Avoidance: An Event-Related Potentials Study on False Recognition and Correct Rejection
title_full Memory Distortion and Its Avoidance: An Event-Related Potentials Study on False Recognition and Correct Rejection
title_fullStr Memory Distortion and Its Avoidance: An Event-Related Potentials Study on False Recognition and Correct Rejection
title_full_unstemmed Memory Distortion and Its Avoidance: An Event-Related Potentials Study on False Recognition and Correct Rejection
title_short Memory Distortion and Its Avoidance: An Event-Related Potentials Study on False Recognition and Correct Rejection
title_sort memory distortion and its avoidance: an event-related potentials study on false recognition and correct rejection
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5053520/
https://www.ncbi.nlm.nih.gov/pubmed/27711125
http://dx.doi.org/10.1371/journal.pone.0164024
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