Imaging the brain activity

Researches

Imaging Brain Activity

Our first look into Swami's brain was achieved with the help of a Positron Emission Tomography (PET) device. Unlike traditional diagnostic techniques that produce images of the body's structure or anatomy, such as X-rays, CT scans or MRI, PET produces images of the function of the brain through the metabolic activity of cells. An analog of glucose is attached to a radioactive PET tracer. The PET scanner then images the metabolically active brain areas at any given time. In the case of Swami, the drug was intended to identify highly active areas of the brain in an alert and conscious state, in the early stages of meditation and during deep meditation. The results of the PET scan tests were stunning. To begin with, the activity in the frontal lobes of Swami's brain were significantly heightened, even in early meditation stages. The level of activity was higher than would be seen in the average human brain under any conditions. When we then asked Swami to go into the deepest meditation state, there were two more remarkable findings.

First, the dominant hemisphere of Swami's brain was more than 90 percent shut down. It was as if Swami's brain had packed up and gone on vacation. It was quiet and still, completely at peace ... and Swami had made it so at will. A second amazing aspect of Swami's deep meditation was that the lower portion of his mesial frontal areas lighted up in a very significant way. This area roughly corresponds to the reputed location of the mystical “Third Eye.” When we later asked Swami what he was doing when the mesial frontal areas lighted up, he said he was opening his third eye. Associated with both cosmic and inner knowledge and thought to be a place of clarity and peace, the Third Eye is considered by many to be the seat of the soul. Were we seeing an indication that deep meditation can open an area of the brain responsible for communicating with the divine, looking deep into the mysteries of self or creation? I believe the PET scan revealed what I call the brain's “D-spot.” Whether you consider the “D” in D-spot to stand for delight, the divine or even dopamine, the chemical through which our bodies experience pleasure, initial indications are that meditation can stimulate it.