Mind Hound

Mind Hound is an ability that is referenced by Tsukuyomi Komoe when Kamijou Touma asks about her experiences about the mind and memory, in order to help Index, who, at that time, required her memory to be erased else she would die.

Along with Marionette, it is one of the vague mind-related powers that is referenced in the first volume. Since it is apparently related to the Memory Manipulation, Shokuhou Misaki has shown abilities similar to this.