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MOVING a mouse with precision is difficult for those whose hands shake because of motor impairment. Now an I.B.M. researcher has invented an inexpensive adapter that minimizes the impact of such tremors.
Tens of millions of people worldwide experience involuntary hand movements because of conditions like Parkinson's disease and essential tremor.
The adapter, which is the size of a hand-held calculator, plugs in between the mouse and the computer. A microprocessor within the device takes the motion data that normally goes to the computer and applies with battery such as Sony VGP-BPL2 battery , Sony VGP-BPS2 battery , Sony VGP-BPS3 battery , Sony VGP-BPS5 battery , Sony VGP-BPS8 battery , Sony VGP-BPS9 battery , Sony PCG-R505 battery , Sony PCG-V505 battery , Sony PCG-Z505 battery , Sony VGN-T90S battery , Sony VGN-T16GP battery , Sony VGP-BPS10 battery an algorithm that filters out all the high-frequency motion caused by the tremor.