To spindle or not to spindle: A replication study into spindling excessive beta as a transdiagnostic EEG feature associated with impulse control

•This is a replication and elaborative study on Spindling Excessive Beta (SEB).•SEB was related to impulse control problems on a self-rated and objective task.•These effects were independent of diagnosis.•Automated detection and transdiagnostic nature of SEB are future research topics.