10.18710/BFMCTV Sendek, Katherine Jean Katherine Jean Sendek https://orcid.org/0000-0002-6056-7565 UIT Norges arktiske universitet DataverseNO 2026 Arts and Humanities Medicine, Health and Life Sciences Social Sciences EEG Multilingualism rsEEG Flanker task AX-CPT task NBack task UiT The Arctic University of Norway The Tromsø Repository of Language and Linguistics (TROLLing) The Tromsø Repository of Language and Linguistics (TROLLing) Sendek, Katherine Jean Katherine Jean Sendek UIT Norges arktiske universitet 2026-06-23 2026-08-17 12927 text/plain 1.0 Creative Commons CC0 1.0 Universal Public Domain Dedication. The ASTRID database is a large-scale database with a primary goal of capturing and quantifying individual differences in multilingual experience and relating them to neurocognitive adaptations/outcomes. Herein, resting-state EEG serves as the default outcome, although subsets of the database have additional available neurocognitive measures, including measures of attentional control, interference suppression, working memory, and proactive/reactive control and the neural correlates to these (also measured with EEG). Crucially, the database is structured such that future projects and collaborators can also easily and straightforwardly contribute data to it. <br> <br> This documentation dataset is a description of the ASTRID collection. All datasets in this collection contain, minimally, raw resting state EEG and language background information (e.g. LSBQ, LHQ, etc.). The collection is organized into datasets representing different data collection efforts. All data follows BIDS format. All data within a given dataset follow the same protocols, as described within the individual datasets. <br> <br> Additional tasks include: <ol> <li>Flanker</li> <li>AX-CPT</li> <li>NBack</li> </ol> <br> <br> ASTRID is intended to be a collaborative effort, where any researcher with appropriate data can contribute. Please see the 'Future_Uploaders.txt' file for details about minimal requirements and how to prepare your data.<br> <br> The collection is managed by the Psycholinguistics of Language Representation lab (PoLaR) at UiT The Arctic University of Norway. For more information about us, visit our webpage <a href="https://site.uit.no/polar">https://site.uit.no/polar</a>. BrainVision Recorder (Brain Products GmbH) BrainVision Analyzer (Brain Products GmbH)