I just know that I can go to my couch in total darkness, hit the cushion, snap a photo and get what people call orbs. The way my group and I go about our business is that if we can re-create, we throw it out. Study results can be skewed anyway you want them. In that sense, Norman is correct. Results are reliant on the person/group that announces them. We don't conduct studies, we go on a case by case basis. We have yet to see an Orb that we cannot explain. Visual pareidolia coupled with wanting to find something paranormal causes too many false positives. Also, "orbs" on video in night shot or zero lux are deceiving. Air currents moving dust particles create so many shots of "orbs" flying and changing direction. We have seen so many of these on our own video clips. Small wind currents will move dust all over the place. Just another opinion.