Dynamics of working memory process revealed by independent component analysis in an fMRI study

Abstract Human memory is prone to errors in many everyday activities but also when cultivating hobbies such as traveling and/or learning a new language. For instance, while visiting foreign countries, people erroneously recall foreign language words that are meaningless to them. Our research simulat...

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Main Authors: Magdalena Fafrowicz, Anna Ceglarek, Justyna Olszewska, Anna Sobczak, Bartosz Bohaterewicz, Monika Ostrogorska, Patricia Reuter-Lorenz, Koryna Lewandowska, Barbara Sikora-Wachowicz, Halszka Oginska, Magdalena Hubalewska-Mazgaj, Tadeusz Marek
Format: Article
Language:English
Published: Nature Portfolio 2023-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-29869-2
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author Magdalena Fafrowicz
Anna Ceglarek
Justyna Olszewska
Anna Sobczak
Bartosz Bohaterewicz
Monika Ostrogorska
Patricia Reuter-Lorenz
Koryna Lewandowska
Barbara Sikora-Wachowicz
Halszka Oginska
Magdalena Hubalewska-Mazgaj
Tadeusz Marek
author_facet Magdalena Fafrowicz
Anna Ceglarek
Justyna Olszewska
Anna Sobczak
Bartosz Bohaterewicz
Monika Ostrogorska
Patricia Reuter-Lorenz
Koryna Lewandowska
Barbara Sikora-Wachowicz
Halszka Oginska
Magdalena Hubalewska-Mazgaj
Tadeusz Marek
author_sort Magdalena Fafrowicz
collection DOAJ
description Abstract Human memory is prone to errors in many everyday activities but also when cultivating hobbies such as traveling and/or learning a new language. For instance, while visiting foreign countries, people erroneously recall foreign language words that are meaningless to them. Our research simulated such errors in a modified Deese-Roediger-McDermott paradigm for short-term memory with phonologically related stimuli aimed at uncovering behavioral and neuronal indices of false memory formation with regard to time-of-day, a variable known to influence memory. Fifty-eight participants were tested in a magnetic resonance (MR) scanner twice. The results of an Independent Component Analysis revealed encoding-related activity of the medial visual network preceding correct recognition of positive probes and correct rejection of lure probes. The engagement of this network preceding false alarms was not observed. We also explored if diurnal rhythmicity influences working memory processes. Diurnal differences were seen in the default mode network and the medial visual network with lower deactivation in the evening hours. The GLM results showed greater activation of the right lingual gyrus, part of the visual cortex and the left cerebellum in the evening. The study offers new insight into the mechanisms associated with false memories, suggesting that deficient engagement of the medial visual network during the memorization phase of a task results in short-term memory distortions. The results shed new light on the dynamics of working memory processes by taking into account the effect of time-of-day on memory performance.
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spelling doaj.art-b501ef46b60947a4b048b25a323db05d2023-03-22T11:15:59ZengNature PortfolioScientific Reports2045-23222023-02-0113111810.1038/s41598-023-29869-2Dynamics of working memory process revealed by independent component analysis in an fMRI studyMagdalena Fafrowicz0Anna Ceglarek1Justyna Olszewska2Anna Sobczak3Bartosz Bohaterewicz4Monika Ostrogorska5Patricia Reuter-Lorenz6Koryna Lewandowska7Barbara Sikora-Wachowicz8Halszka Oginska9Magdalena Hubalewska-Mazgaj10Tadeusz Marek11Department of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian UniversityDepartment of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian UniversityDepartment of Psychology, University of Wisconsin-OshkoshDepartment of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian UniversityDepartment of Psychology of Individual Differences, Psychological Diagnosis and Psychometrics, Faculty of Psychology, SWPS University of Social Sciences and HumanitiesChair of Radiology, Medical College, Jagiellonian UniversityDepartment of Psychology, University of MichiganDepartment of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian UniversityDepartment of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian UniversityDepartment of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian UniversityDepartment of Drug Addiction Pharmacology, Maj Institute of Pharmacology, Polish Academy of SciencesDepartment of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian UniversityAbstract Human memory is prone to errors in many everyday activities but also when cultivating hobbies such as traveling and/or learning a new language. For instance, while visiting foreign countries, people erroneously recall foreign language words that are meaningless to them. Our research simulated such errors in a modified Deese-Roediger-McDermott paradigm for short-term memory with phonologically related stimuli aimed at uncovering behavioral and neuronal indices of false memory formation with regard to time-of-day, a variable known to influence memory. Fifty-eight participants were tested in a magnetic resonance (MR) scanner twice. The results of an Independent Component Analysis revealed encoding-related activity of the medial visual network preceding correct recognition of positive probes and correct rejection of lure probes. The engagement of this network preceding false alarms was not observed. We also explored if diurnal rhythmicity influences working memory processes. Diurnal differences were seen in the default mode network and the medial visual network with lower deactivation in the evening hours. The GLM results showed greater activation of the right lingual gyrus, part of the visual cortex and the left cerebellum in the evening. The study offers new insight into the mechanisms associated with false memories, suggesting that deficient engagement of the medial visual network during the memorization phase of a task results in short-term memory distortions. The results shed new light on the dynamics of working memory processes by taking into account the effect of time-of-day on memory performance.https://doi.org/10.1038/s41598-023-29869-2
spellingShingle Magdalena Fafrowicz
Anna Ceglarek
Justyna Olszewska
Anna Sobczak
Bartosz Bohaterewicz
Monika Ostrogorska
Patricia Reuter-Lorenz
Koryna Lewandowska
Barbara Sikora-Wachowicz
Halszka Oginska
Magdalena Hubalewska-Mazgaj
Tadeusz Marek
Dynamics of working memory process revealed by independent component analysis in an fMRI study
Scientific Reports
title Dynamics of working memory process revealed by independent component analysis in an fMRI study
title_full Dynamics of working memory process revealed by independent component analysis in an fMRI study
title_fullStr Dynamics of working memory process revealed by independent component analysis in an fMRI study
title_full_unstemmed Dynamics of working memory process revealed by independent component analysis in an fMRI study
title_short Dynamics of working memory process revealed by independent component analysis in an fMRI study
title_sort dynamics of working memory process revealed by independent component analysis in an fmri study
url https://doi.org/10.1038/s41598-023-29869-2
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