“…(2) Brief targetviewing times: It is apparent from the performance of different lAs that people can reliably achieve a temporal precision of within 10 msec when the target is visible for only a few hundred milliseconds (e.g., Bootsma & van Wieringen, 1990;McLeod et a!., 1985;Regan, 1992;Tresilian, 1994a). A comparable precision can be achieved with viewing times ofless than about 100 msec (Sharp & Whiting, 1975;Whiting, Gill, & Stephenson, 1970). In addition, there is the possibility of controlling movements in an on-going fashion using TTC information available during execution (e.g., Lee, Young, Reddish, Lough, & Clayton, 1983) and the possibility that execution times are determined by the TTC at initiation, when the action is too brief to admit on-going control (Bootsma, 1989;Tresilian, 1994c).…”