Were subjects in the 2007 study by G.B. Caputo sensing inner spirit attachments in the apparitions they saw while mirror gazing?

As you saw intuitively, this is very much the case. And this is why you made note of this scientific exploration and saw potential value in sharing the fact this phenomenon occurs, as well as its true meaning. Even though not recognized by the author, it is nonetheless the case that many of these observations were a personal intuitive inner sensing of the separate consciousness within their energy, and were able to bring forth a visible manifestation of its presence. This reflects the fact that all have some intuitive capability and parallels the ability of people themselves, facilitated by hypnotic trance, to have their spirit attachments step forward and speak through them to tell their story and allow a dialogue to probe their agenda and work with them to help them leave the client. As you have found this to be an often upsetting approach to the problem of spirit removal, we are simply commenting on the fact that people have abilities they are unaware of that also revealed the truth of things, that there are other energies out and about, and consciousness of various kinds with various agendas, many opposed to human happiness, and these phenomena are quite real. So this scientific report accurately describes and documents the inner reach of the mind to display this phenomenon quite graphically, and often quite disturbingly for the host. So it is a useful real-world example showing in yet a differing way, that spirit attachment is real and experienced by a high percentage of people.