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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Nature Portfolio
2023-02-01
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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. |
first_indexed | 2024-04-09T22:56:28Z |
format | Article |
id | doaj.art-b501ef46b60947a4b048b25a323db05d |
institution | Directory Open Access Journal |
issn | 2045-2322 |
language | English |
last_indexed | 2024-04-09T22:56:28Z |
publishDate | 2023-02-01 |
publisher | Nature Portfolio |
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series | Scientific Reports |
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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