>>280732543
I'll post my note regarding this thing since it has been a bit since we've seen it. The term used for the channeling doll is "依代人形" or "yorishiro ningyou". I have a note from Furinkan, but I can also just post the definition of yorishiro from JapanDict: "object representative of a divine spirit, object to which a spirit is drawn or summoned, object or animal occupied by a kami". Ningyou just means doll. Anyway, here's Furinkan's note:

"Yorishiro (依代) references an object that a spirit is drawn to dwell in."

It is a Shinto term.