This may be especially prevalent in individuals who have severe physical disabilities, as they may not have sufficient control of their movement (Bates, 2002). One problem with dwell clicks when combined with eye gaze systems that has been noted in the research literature is called the “Midas touch,” which refers to inadvertent clicks when the user gazes at an object of interest for too long that they do not wish to select (Velichkovsky, Sprenger, & Unema, 1997). In this case, users typically gaze for 1 second at a target before a mouse click is generated at the average location of their gaze during that second.
It is common for dwell clicking to be combined with an eye gaze system. For individuals who are typically developing, dwell click has been found to be more efficient and less fatiguing to the hand than traditional mouse clicking (Bohan & Chaparro, 1998). Dwell clicking can be used to control a computer by individuals who physically have no other method of computer interaction (Bates, 2002). Users simply hover their cursor over an item on the screen for a predetermined amount of time and this item will be clicked. Dwell clickers allow individuals to use a mouse or other pointing device (e.g., a joystick) without having to click buttons.
0 kommentar(er)
