This reminds me of mirror box therapy for phantom limb syndrome. Amputees sometimes feel intense pain in the limbs that they have lost. This is measurable activity in the brain. Unfortunately all of the feedback mechanisms for that activity have been removed with the limb. By showing people a mirrored version of their remaining limb. And then stimulating that limb in a way that would remove pain say massage or touch or unclenching a cramped clenched phantom hand, the patient gets the feedback to the part of their brain via their visual system that there's nothing wrong with that limb. This activates inhibitory circuits that would otherwise be inaccessible.

In this therapy a combination of visual and audio input as well as external control over the behavior of the Voice allows for a feedback mechanism which does not exist otherwise.