Dr Joaquin Andrade fMRI (functional Magnetic Resonance Imaging) is state-of-the-art imaging diagnosis for CNS. It measures the increase in blood flow that correlates directly to neural activity. Interestingly, this increased blood flow corresponds with local reduction of deoxyhemoglobin because it happens without similar increases in oxygen extraction. Deoxyhemoglobin is paramagnetic, able to alter the T2x MRI signal, acting as an internal contrast agent, so no need to inject contrast substances in fMRI, as needed in PET scans. fMRI allows a direct observation of what specific structures are activated during any task, physical or cognitive. It allows us to do that in any part of the CNS, and provides scientific evidence for the theoretical basis of BMSA. 
So, from a research standpoint, we now have the measurement tools to: - Register activation of peripheral receptors.
- Register signal transmission along the pathways by evoked potentials.
- Register precise activation of central structures by fMRI.
In other words, we may now not only identify that brain processing is occurring, but accurately measure where and how it is occurring. This both provides evidence for the validity of BMSA theory, as well as objective assessment of efficacy. In contrast, MMT (manual muscle testing) has been totally discredited as a measurement tool for assessing unconscious processing, and should be regarded as a shamanistic protocol fraught with danger for those who are ignorant of its ramifications. | 
