Signal-to-noise ratio of event-related fields in on-scalp and off-scalp MEG
Mainak Jas, Teppei Matsubara, Abbas Sohrabpour, Padmavathi Sundaram, Maria Mody, Seppo P. Ahlfors
The paper compares signal-to-noise ratio (SNR) of MEG signals from on-scalp and off-scalp sensors, finding that OPMs offer better SNR for superficial sources and smaller heads.
bioRxiv · Aug 21, 2026 · PreprintNeuroscience