Mullinger develops multimodal neuroimaging (simultaneous EEG-fMRI, MEG, OPM-MEG) to study neurovascular coupling, post-stimulus responses and negative BOLD, bridging electrophysiology and haemodynamics. The work complements NV-center diamond ensemble quantum sensing (DEER, NMR, T1 relaxometry) at pT/sqrt(Hz) sensitivity by pursuing the same field-sensing goals in a different physical platform.