There is a recent article in Quanta Magazine, What a Contest of Consciousness Theories Really Proved, stating that “A further complication was that the experimental results depended on the type of brain recording technique used. That’s not surprising since each technology provides a different lens into the brain. Functional magnetic resonance imaging (fMRI), for instance, tracks blood flow and offers good spatial resolution but is too sluggish to keep up with the pace of chatter among the neurons. Magnetoencephalography (MEG), on the other hand, tracks brain chatter but has poorer spatial resolution. It also makes a difference whether researchers are measuring signal strength in specific locations of the brain or analyzing patterns over wider areas.”