Ouija boards, don't channel spirits, plz read this article:
How Ouija Boards Work
You are making a misattribution error, unfortunately, like many senior citizens who think that drugs turn you into some sort of slobbering homicidal maniac. For example, a great many schizophrenics self-medicate with heroin, and so some people misattribute heroin as driving people crazy. The drugs are just a symptom. So too when a gullible loon plays with their ouija board and then uses that as an excuse to fully express their inner fruitloop.
Psychiatrists are involved in administering drugs more than other forms of therapy. This is a job for psych studies, and lo and behold, yes, they have investigated ouija boards. Again, please read the article above.
Caution is often a good idea, but please remember that many of our ancestors were basically like this person:
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