Abstract: The invention is directed to electronic devices and methods of controlling a user's reading performance, and particularly to providing tactile user control of the user's reading in a rapid serial presentation of texts (“RSVP Text”) system.

Abstract: The present invention consists of a method comprising the steps of displaying an image representing a source value; displaying an image representing a destination value; and displaying a transition image; wherein the transition image is a function of the source value and the destination value. Additionally, the present invention consists of an apparatus comprising: a graphics display device; a memory; a timing unit; and a processing unit coupled to the memory, the timing unit and the graphics display device; wherein the processing unit is configured to provide a transition from a first static value to a second static value; wherein the transition is a function of the first static value and the second static value.