In a pointing task, the movement-time (MT), as opposed to reaction-time (RT), does not depend upon duration of preparatory period (PP). On the other hand, the mean MT, but not the mean RT, is shortened by guidance of the movement. The timing of preparatory processes in such task is discussed.
FittsP. M., & PetersonJ. R.Information capacity of discrete motor responses. Journal of Experimental Psychology, 1964, 67, 103–112.
3.
FittsP. M., & RadfordB. K.Information capacity of discrete motor responses under different cognitive sets. Journal of Experimental Psychology, 1966, 71, 475–482.
4.
GottsdankerR., BroadbentL., & Van SantC.Reaction-time to single and to first signals. Journal of Experimental Psychology, 1963, 66, 163–167.
5.
LeonardJ. A.Advance information in sensori-motor skills. Quarterly Journal of Experimental Psychology, 1953, 5, 141–149.
6.
PoultonE. C.Perceptual anticipation and reaction-time. Quarterly Journal of Experimental Psychology, 1950, 2, 99–112.
7.
RequinJ., GranjonM., DurupH., & ReynardG.Effects of a timing signal on simple reaction-time with a rectangular distribution of foreperiods. Quarterly Journal of Experimental Psychology, 1973, 25, 344–353.
8.
WelfordA. T.Ageing and human skills.London: Oxford Univer. Press, 1958.
