From Greg Williams (921221)
Mainly to Tom B. and Bill P., but anyone can join in.
What would a PCT model look like for a step tracking task? Would it be the
same as the model used so successfully for continuous tracking? Would its
parameters change with the amplitude of the step and/or the speed of the
step's rise (actually a ramp, in this case)? Maybe Tom could come up with
an answer after a few quick experiments. I'm interested in the possibility
of accurately determining the nonlinearities (if there) in the human control
task -- which the Air Force tracking people have identified. Maybe step
(ramp) tracking studies would be useful in this regard. One would be looking
for accurate prediction over only a second or so (but with varying ramp
rise times and amplitudes and directions (up or down)), especially with
regard to delay of movement onset, oscillations, overshoot -- should be
easy for somebody who can predict for One whole minute, right?
As ever,
Greg