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Sectathonics enables a person to track people, but requires no emissions from the sectathon, who measures disruptions in the psychic flow in much the same way an eye measures light. The psychic receptors in the prefrontal lobes of a sectathon's brain, just behind the forehead, detect minute variations in the intensity, direction and frequency of ambient psychic energy at any distance within the sectathon's range.
A sectathon can even identify a person using mindshields—because of the shields themselves. All humans project shields on a limited number of frequencies. The pattern and intensity of those frequencies are the identifiers. The only two ways to keep a sectathon from identifying someone are to place the person behind an electrical shield or beyond the range of a sectathon's tal
