Original ResearchPublished 12 December 2025Global signal regression reduces connectivity patterns related to physiological signals and does not alter EEG-derived connectivityAlba Xifra-Porxas · Michalis Kassinopoulos · Prokopis Prokopiou · Marie-Hélène Boudrias · Georgios D. MitsisFrontiers in Neuroimagingdoi 10.3389/fnimg.2025.1653206