RFI as a brain imaging tool

All conventional brain imaging technologies, such as the CAT scan and PET scan, measure the properties of the brain indirectly, by first using a sensor to detect X-rays or radiation passing through the brain, compiling the numerical data, and then using a computer to construct a visual image of the brain, where the shapes and colours are superimposed onto the picture. There are two major disadvantages of using CAT and PET scans:

(1) It is necessary to subject the patient to X-rays passing through the head (CAT), or to inject the patient with a radioactive substance (PET), which limits how often a scan can be performed.

(2) The CAT scan only shows the shape, size and density of conditions in the brain. The PET scan only shows the intensity of activity in specific regions of the brain. While both are essential and beneficial in modern medicine, neither of them can reveal the causative factors of objects and events detected in the brain.