 As an independent illustration of how consumer systems can transform perceptual contents, consider prosthetic vision (Bach-y-Rita 1995; Bach-y-Rita and Kercel 2003). Blind subjects can be fitted with a device that transduces the output from a hand-held or head-mounted video-camera into patterns of electrically-induced tactile stimulation across the subject’s back or tongue. Initially, of course, the subjects just feel patterns of gentle tickling sensations spreading over the area in question, while the camera scans what is in front of them. But provided that they are allowed to control the movements of the camera themselves, their experiences after a time acquire three-dimensional distal intentional contents, representing the positions and movements of objects in space.(Note that the patterns of tactile simulations themselves become imbued with spatial content. The subjects in question say that it has come to seem to them that there is a spherical object moving towards them, for example.) Here everything on the input side remains the same as it was when subjects first began to wear the device; but the planning and action-controlling systems have learned to interpret those states differently. And as a result, the subjects’ first-order intentional perceptual contents have become quite different. Likewise, according to dispositional HOT theory, when the ‘theory of mind’ system has learned to interpret the subject’s perceptual states as perceptual states: they all acquire a dimension of seeming or subjectivity.