Pointing movements with the hand were used to control directly a cursor to point to targets on a graphical display with different gain settings. A detailed analysis of both the tumor and hand movements showed how features of the movements scale over a wide range of distances and target widths. Cursor movements showed gain effects, while hand movements were relatively unaffected by gain. The results suggest that considering the behaviour of the hand, rather than the cursor, will lead to more effective modelling of human performance with certain types of pointing devices.
['Evan D. Graham', 'Christine L. MacKenzie']
Pointing on a computer display