The ability to keep one's gaze upward while closing eyelids is associated with high hypnotizability.

“And it seemed that there is a rough correlation between the capacity to keep your eyes up, while you closed them and measured hypnotizability.”

“if you are capable of keeping your ey your gaze upward and closing your eyelids you score on a particular end of the so-called Spiel eye roll test which makes you highly hypnotizable because that state of hypnosis is one in which you're what alert but very very relaxed”

“Whereas if the eyes move down and you see iris, the colored part of the eye, as the eyes close, less hypnotizable.”

“And the the eye roll test involves then >> closing the eyelids while the eyes are open. And whether or not the eyes roll back and as you said it then you see scara the white part the white part >> that means you're very hypnotizable or moderately hypnotizable.”