For me personally, that these psychologists are using Ouija boards in this way only solidifies my belief that there is nothing evil about them and any alleged contact made is not a spirit nor, more importantly, demon. It’s simply the subconscious of the individual(s) touching the planchette.
Beloved of spiritualists and bored teenagers on a dare, the Ouija board has long been a source of entertainment, mystery and sometimes downright spookiness. Now it could shine a light on the secrets of the unconscious mind.
The Ouija, also known as a talking board, is a wooden plaque marked with the words, “yes”, “no” and the letters of the alphabet. Typically a group of users place their hands on a movable pointer , or “planchette”, and ask questions out loud. Sometimes the planchette signals an answer, even when no one admits to moving it deliberately.
Believers think the answer comes through from the spirit world. In fact, all the evidence points to the real cause being the ideomotor effect, small muscle movements we generate unconsciously.
The Witching Hour 
That’s very interesting and I completely agree with you regarding your belief that ouija boards are not “evil”. I’ve always been a believer that they have something to do with the user’s subconscious and like you mentioned, this basically confirms it, for me anyway 😉
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