How is EKG signals recorded in MESA dataset and its electrode setup?
Thanks for using the NSRR.
Please read through the available MESA documentation, e.g. the PSG Manual of Procedures (https://sleepdata.org/datasets/mesa/files/documentation/MESA_Sleep_Actigraphy_Manual_of_Procedures.pdf) and equipment overview (https://sleepdata.org/datasets/mesa/pages/equipment), and let us know if you have specific questions.