<?xml version='1.0' encoding='UTF-8'?><codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5" xml:lang="en"><docDscr><citation><titlStmt><titl xml:lang="en">Data for the study "Physiological assessment of the psychological flow state using wearable devices"</titl><IDNo agency="handle">hdl:21.15109/ARP/968SUZ</IDNo></titlStmt><distStmt><distrbtr source="archive">ARP</distrbtr><distDate>2025-01-22</distDate></distStmt><verStmt source="archive"><version date="2025-09-30" type="RELEASED">2</version></verStmt><biblCit>Rácz, Melinda; Becske, Melinda; Magyaródi, Tímea; Kitta, Gergely; Szuromi, Márton; Márton, Gergely, 2025, "Data for the study "Physiological assessment of the psychological flow state using wearable devices"", https://hdl.handle.net/21.15109/ARP/968SUZ, ARP, V2</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl xml:lang="en">Data for the study "Physiological assessment of the psychological flow state using wearable devices"</titl><IDNo agency="handle">hdl:21.15109/ARP/968SUZ</IDNo></titlStmt><rspStmt><AuthEnty affiliation="HUN-REN Research Centre for Natural Sciences">Rácz, Melinda</AuthEnty><AuthEnty affiliation="School of PhD Studies, Semmelweis University">Becske, Melinda</AuthEnty><AuthEnty affiliation="Mathias Corvinus Collegium">Magyaródi, Tímea</AuthEnty><AuthEnty affiliation="Mathias Corvinus Collegium">Kitta, Gergely</AuthEnty><AuthEnty affiliation="Mathias Corvinus Collegium">Szuromi, Márton</AuthEnty><AuthEnty affiliation="HUN-REN Research Centre for Natural Sciences">Márton, Gergely</AuthEnty></rspStmt><prodStmt/><distStmt><distrbtr source="archive">ARP</distrbtr><contact affiliation="HUN-REN Research Centre for  Natural Sciences" email="racz.melinda.9157@gmail.com">Rácz, Melinda</contact><depositr>Rácz, Melinda</depositr><depDate>2025-01-15</depDate></distStmt><holdings URI="https://hdl.handle.net/21.15109/ARP/968SUZ"/></citation><stdyInfo><subject><keyword xml:lang="en">Engineering</keyword><keyword xml:lang="en">Medicine, Health and Life Sciences</keyword></subject><abstract date="2025-01-15" xml:lang="en">Data for the study "Physiological assessment of the psychological flow state using wearable devices". In this study, 28 adult Hungarian people played three versions of Tetris optimized for inducing boredom, flow or frustration. EEG, photoplethysmography (heart rate, blood oxygenation) and galvanic skin response signals were recorded along physical activity, using portable devices (headset, armband) developed by Mathias Corvinus Collegium.</abstract><sumDscr/></stdyInfo><method><dataColl><sources/></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/></dataAccs><othrStdyMat><relPubl><citation><titlStmt><titl>Rácz, M., Becske, M., Magyaródi, T. et al. Physiological assessment of the psychological flow state using wearable devices. Sci Rep 15, 11839 (2025). https://doi.org/10.1038/s41598-025-95647-x</titl><IDNo agency="doi">10.1038/s41598-025-95647-x</IDNo></titlStmt><biblCit>Rácz, M., Becske, M., Magyaródi, T. et al. Physiological assessment of the psychological flow state using wearable devices. 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