Maybe in your spare time you can fetch that video on YouTube. It seems like YouTube has everything...
So a psychic (or was it a group of psychics) conducting that experiment on other psychics? That's interesting. You said that some viewers were able to detect different halves of the ghost. But how did the psychics do?
You know what would be interesting? But first, I'll assume that the psychic (or psychics) conducting the experiment must have been able to detect the ghost. Otherwise, there would be no point to the experiment if they could not visually detect the ghost. Anyway, the eyes of the psychic are arranged biologically so that they can detect the ghost and hence send signals to the brain to confirm the image (unless, of course, if the detection of ghosts goes beyond the human boundary and into another form of detection system). Let's also assume that the internal parts/nerves of their eyes are arranged slightly different than the average human being and hence these psychics, but not ordinary people, are able to see ghosts. In the mechanical world, cameras are the closest things to imitate the human eyes. My point is the following: why won't we (in this case, the scientists) perform vigorous scientific research on the biological eyes of these psychics who supposedly can detect ghosts? The scientists will study everything from the shapes of every parts that make up the eye, the rod/cone ratio and amount, the ganglion cells, and all parts of the brain (just in case there is an unknown part of the brain that is triggered by the response to the ghost stimuli and therefore allows for its detection). So after this extensive research is performed, we'll have a bunch of physicists, engineers, and mathematicians to analyze the data so that a super camera can be built that will best imitate the eyes and sensory organs of these psychics. What do you think?
Btw, I don't know much about ka tas. But I do know that people can cast ka tas on ghosts to drive them away. Ka tas are phrases or short sentences that people summon repeatedly (either in their mind or verbally saying it) and then blow it onto the ghost. Anyone who knows more about ka tas have a better description?