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Specific patterns of neural activity in the hippocampus after massed or distributed spatial training
Training with long inter-session intervals, termed distributed training , has long been known to be superior to training with short intervals, termed massed training . In the present study we compared c-Fos expression after massed and distributed training protocols in the Morris water maze to outlin...
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Published in: | Scientific reports 2023-08, Vol.13 (1), p.13357-13357, Article 13357 |
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description | Training with long inter-session intervals, termed
distributed training
, has long been known to be superior to training with short intervals, termed
massed training
. In the present study we compared c-Fos expression after massed and distributed training protocols in the Morris water maze to outline possible differences in the learning-induced pattern of neural activation in the dorsal CA1 in the two training conditions. The results demonstrate that training and time lags between learning opportunities had an impact on the pattern of neuronal activity in the dorsal CA1. Mice trained with the distributed protocol showed sustained neuronal activity in the postero-distal component of the dorsal CA1. In parallel, in trained mice we found more active cells that tended to constitute spatially restricted clusters, whose degree increased with the increase in the time lags between learning trials. Moreover, activated cell assemblies demonstrated increased stability in their spatial organization after distributed as compared to massed training or control condition. Finally, using a machine learning algorithm we found that differences in the number of c-Fos positive cells and their location in the dorsal CA1 could be predictive of the training protocol used. These results suggest that the topographic organization and the spatial location of learning activated cell assemblies might be critical to promote the increased stability of the memory trace induced by distributed training. |
doi_str_mv | 10.1038/s41598-023-39882-0 |
format | article |
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distributed training
, has long been known to be superior to training with short intervals, termed
massed training
. In the present study we compared c-Fos expression after massed and distributed training protocols in the Morris water maze to outline possible differences in the learning-induced pattern of neural activation in the dorsal CA1 in the two training conditions. The results demonstrate that training and time lags between learning opportunities had an impact on the pattern of neuronal activity in the dorsal CA1. Mice trained with the distributed protocol showed sustained neuronal activity in the postero-distal component of the dorsal CA1. In parallel, in trained mice we found more active cells that tended to constitute spatially restricted clusters, whose degree increased with the increase in the time lags between learning trials. Moreover, activated cell assemblies demonstrated increased stability in their spatial organization after distributed as compared to massed training or control condition. Finally, using a machine learning algorithm we found that differences in the number of c-Fos positive cells and their location in the dorsal CA1 could be predictive of the training protocol used. These results suggest that the topographic organization and the spatial location of learning activated cell assemblies might be critical to promote the increased stability of the memory trace induced by distributed training.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-023-39882-0</identifier><identifier>PMID: 37587232</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>631/378/116/2395 ; 631/378/1595 ; 631/378/1595/1554 ; c-Fos protein ; Humanities and Social Sciences ; Learning ; multidisciplinary ; Neurosciences ; Protocol ; Science ; Science (multidisciplinary)</subject><ispartof>Scientific reports, 2023-08, Vol.13 (1), p.13357-13357, Article 13357</ispartof><rights>The Author(s) 2023</rights><rights>The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>Springer Nature Limited 2023</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c518t-a938b6360df91d003e7477fe526293381a4fb4b3baef71373d339499a31567373</citedby><cites>FETCH-LOGICAL-c518t-a938b6360df91d003e7477fe526293381a4fb4b3baef71373d339499a31567373</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2851548816/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2851548816?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25752,27923,27924,37011,37012,44589,53790,53792,74897</link.rule.ids></links><search><creatorcontrib>Centofante, Eleonora</creatorcontrib><creatorcontrib>Fralleoni, Luca</creatorcontrib><creatorcontrib>Lupascu, Carmen A.</creatorcontrib><creatorcontrib>Migliore, Michele</creatorcontrib><creatorcontrib>Rinaldi, Arianna</creatorcontrib><creatorcontrib>Mele, Andrea</creatorcontrib><title>Specific patterns of neural activity in the hippocampus after massed or distributed spatial training</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><description>Training with long inter-session intervals, termed
distributed training
, has long been known to be superior to training with short intervals, termed
massed training
. In the present study we compared c-Fos expression after massed and distributed training protocols in the Morris water maze to outline possible differences in the learning-induced pattern of neural activation in the dorsal CA1 in the two training conditions. The results demonstrate that training and time lags between learning opportunities had an impact on the pattern of neuronal activity in the dorsal CA1. Mice trained with the distributed protocol showed sustained neuronal activity in the postero-distal component of the dorsal CA1. In parallel, in trained mice we found more active cells that tended to constitute spatially restricted clusters, whose degree increased with the increase in the time lags between learning trials. Moreover, activated cell assemblies demonstrated increased stability in their spatial organization after distributed as compared to massed training or control condition. Finally, using a machine learning algorithm we found that differences in the number of c-Fos positive cells and their location in the dorsal CA1 could be predictive of the training protocol used. These results suggest that the topographic organization and the spatial location of learning activated cell assemblies might be critical to promote the increased stability of the memory trace induced by distributed training.</description><subject>631/378/116/2395</subject><subject>631/378/1595</subject><subject>631/378/1595/1554</subject><subject>c-Fos protein</subject><subject>Humanities and Social Sciences</subject><subject>Learning</subject><subject>multidisciplinary</subject><subject>Neurosciences</subject><subject>Protocol</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNp9kk1vFSEUhidGY5vaP-CKxI2bUeDADKyMafxo0sSFuiYMH_dyMxdGYJr035d2mta6kA0ceN8nnJO3694S_IFgEB8LI1yKHlPoQQpBe_yiO6WY8Z4CpS__Op9056UccFucSkbk6-4ERi7G9nba2Z-LM8EHgxZdq8uxoORRdGvWM9KmhutQb1CIqO4d2odlSUYfl7Ug7ZsaHXUpzqKUkQ2l5jCttZWlsULz16xDDHH3pnvl9Vzc-cN-1v3--uXXxff-6se3y4vPV73hRNReSxDTAAO2XhKLMbiRjaN3nA5UAgiimZ_YBJN2fiQwggWQTEoNhA9jq8-6y41rkz6oJYejzjcq6aDuL1LeKZ1rMLNTljIycqMHMhEG0rYRYgYaE8wnLj001qeNtazT0VnjYutmfgZ9_hLDXu3StSKNQzkjjfD-gZDTn9WVqo6hGDfPOrq0FkVFawzwwGmTvvtHekhrjm1WdyrCmRBkaCq6qUxOpWTnH39DsLoLhdpCoVoo1H0oFG4m2EyliePO5Sf0f1y3Pqa3tg</recordid><startdate>20230816</startdate><enddate>20230816</enddate><creator>Centofante, Eleonora</creator><creator>Fralleoni, Luca</creator><creator>Lupascu, Carmen A.</creator><creator>Migliore, Michele</creator><creator>Rinaldi, Arianna</creator><creator>Mele, Andrea</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><general>Nature Portfolio</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20230816</creationdate><title>Specific patterns of neural activity in the hippocampus after massed or distributed spatial training</title><author>Centofante, Eleonora ; 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distributed training
, has long been known to be superior to training with short intervals, termed
massed training
. In the present study we compared c-Fos expression after massed and distributed training protocols in the Morris water maze to outline possible differences in the learning-induced pattern of neural activation in the dorsal CA1 in the two training conditions. The results demonstrate that training and time lags between learning opportunities had an impact on the pattern of neuronal activity in the dorsal CA1. Mice trained with the distributed protocol showed sustained neuronal activity in the postero-distal component of the dorsal CA1. In parallel, in trained mice we found more active cells that tended to constitute spatially restricted clusters, whose degree increased with the increase in the time lags between learning trials. Moreover, activated cell assemblies demonstrated increased stability in their spatial organization after distributed as compared to massed training or control condition. Finally, using a machine learning algorithm we found that differences in the number of c-Fos positive cells and their location in the dorsal CA1 could be predictive of the training protocol used. These results suggest that the topographic organization and the spatial location of learning activated cell assemblies might be critical to promote the increased stability of the memory trace induced by distributed training.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>37587232</pmid><doi>10.1038/s41598-023-39882-0</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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subjects | 631/378/116/2395 631/378/1595 631/378/1595/1554 c-Fos protein Humanities and Social Sciences Learning multidisciplinary Neurosciences Protocol Science Science (multidisciplinary) |
title | Specific patterns of neural activity in the hippocampus after massed or distributed spatial training |
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