{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T11:59:31Z","timestamp":1775735971698,"version":"3.50.1"},"reference-count":54,"publisher":"MIT Press","issue":"12","license":[{"start":{"date-parts":[[2024,5,13]],"date-time":"2024-05-13T00:00:00Z","timestamp":1715558400000},"content-version":"vor","delay-in-days":133,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["direct.mit.edu"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,12,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Consecutive training on two movement sequences often leads to retroactive interference\u2014obstructing memory for the initially trained sequence but not for the second. However, in the context of hippocampal-system dependent memories, a poor learning experience, memory for which would soon decay, can be enhanced if temporally paired with a \u201cstrong\u201d memory triggering experience. The synaptic tagging and capture hypothesis explains this paradoxical enhancement by suggesting that only strong experiences generate cellular resources necessary for synaptic remodeling. However, synapses engaged in a \u201cweak\u201d learning experience can capture and utilize plasticity-related resources generated for a subsequent strong learning experience. Here, we tested whether such a \u201cparadoxical\u201d outcome would result in the context of motor (procedural) memory, if two movement sequences are unequally trained, consecutively. We show, in young adults (n = 100), that limited practice on a novel sequence of finger-to-thumb opposition movements led to different long-term outcomes, depending on whether and when (5\u2009min, 5\u2009hr) it was followed by extensive training on a different sequence. Five-minute pairing only resulted in overnight gains for the limited-trained sequence that were well-retained a week later; the overnight gains for the extensively trained sequence were compromised. Thus, consecutive training on different motor tasks can result in mnemonic interactions other than interference. We propose that the newly discovered mnemonic interaction provides the first-tier behavioral evidence in support of the possible applicability of notions stemming from the synaptic tagging and capture hypothesis in relation to human motor memory generation, specifically in relation to the practice-dependent consolidation of novel explicitly instructed movement sequences.<\/jats:p>","DOI":"10.1162\/jocn_a_02186","type":"journal-article","created":{"date-parts":[[2024,5,13]],"date-time":"2024-05-13T17:20:59Z","timestamp":1715620859000},"page":"2807-2821","update-policy":"https:\/\/doi.org\/10.1162\/mitpressjournals.corrections.policy","source":"Crossref","is-referenced-by-count":3,"title":["Paradoxical Long-term Memory Augmentation following Temporal Pairing between \u201cLimited\u201d and \u201cExtensive\u201d Motor Sequence Training Experiences"],"prefix":"10.1162","volume":"36","author":[{"given":"Yaniv","family":"Oren","sequence":"first","affiliation":[{"name":"University of Haifa, 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