Download EagleEyes 2012
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a person cannot double click or drag with EagleEyes. So the software should be able to be used by moving the mouse pointer and single-clicking for selections. EagleEyes takes some getting used to. When we try the system with Boston College undergraduates it takes them about half an hour to be able to have enough control to spell out messages using an onscreen spelling board. They are able to consistently spell out messages at the rate of one character every 2.5 seconds. (See J.J. Tecce, J. Gips, P. Olivieri, L. Pok, M. Consiglio, "Eye Movement Control of Computer Functions", International Journal of Psychophysiology, vol. 29, no. 3, 1998.) Children with profound disabilities can require much more time to learn the system. First they must learn that there is a cause and effect relationship between their moving their eyes or head and the movement of the mouse pointer on the screen. Then they must acquire the skill of moving the pointer where they want to by controlling the angle of the eyes in the head. Our eyes have longer horizontal movement than they do vertical movement. Also we have involuntary blinks during which our eyes move upwards to be washed off by our eyelids. Also the involuntary movement of the eyelids can affect the vertical signal. The result is that the horizontal signal is easier to control than the vertical signal. People with severe disabilities have become quite capable at using EagleEyes. There can be profound positive effects (for example, to sense of self and to the way a child is treated by family members and others) to becoming even partially proficient at controlling the computer. EagleEyes 2012 User Manual Page 10 of 45