Representational Momentum In Different Time-Space Expanding Level

An observer's memory for the final position of a previously viewed moving target is often displaced forward in the direction of target motion. This displacement has been suggested to reflect the implied momentum of the target and has been referred to as representational momentum (RM). The velocity as a important factor with RM, so space and time have become the important factors in the study about RM. But, in many studies ago, time or space was studied alonly, and didn't research them together. In this experiment, time and space will be studied together.The research included two experiments. In experiment 1, the ISI (Interstimulus Intervals) and angle have been expanded simultaneity, and formed different expanding level. Result: No difference in each expanding level. Difference has been found in RI(Retention Interval), when RI was great, the displace was more, and the displace was most in 350ms. Difference has been found in Probe position, the displace was more when probe position was 2°,4°. The interactions in expanding level and RI had notable effect, when expanding level was great, the difference was great in RI. When expanding level more great, RI was smaller, the displace was smaller; When expanding level more great, RI was longer, the displace was larger. The interactions in expanding level, RI and probe position had notable effect. When the probe position was 2°, RI was 100ms, 200ms, the displace was reduce with the expanding level largen. The react time was long when probe position was 0°, and was short when probe position is 2°. In experiment 2, the ISI and angle had been expanded simultaneity. But the expanding was in the implied stimulates, and form different expanding level. Result: Difference had been found in expanding level. The displace of expanding level 1 was larger than expanding level 1.6, but the other had no difference. In RI, probe position, the interactions in expanding level and RI, the interactions in expanding level, RI and probe position, had found the same result as experiment 1. But the react time was different. In experiment 2, each probe position had no difference except±6°. Base on the experiment 1 and experiment 2, conclusion: (1) expanding level can affect RM by the appropriate operate. When the expanding level is higher, the displace is smaller. (2) In a specifically range(In this experiment is 100-350ms), the displace is larger with the RI largen. (3) The interactions in expanding level and RI have notable effect, When expanding level more great, RI is shorter, the displace is smaller; When expanding level more great, RI is longer, the displace is larger. (4) When time and space are processed in the implied stimulates, the time is may be processed higher-level . (5) When different expanding level stimulates have been presented, subject may be produce different extrapolate start-up velocity .When subject feel the implied velocity is fast, subject will fast start-up extrapolate, When subject feel the implied velocity is slow, subject will slow start-up extrapolate. (6) When implied stimulates presented is no change, the react time is short in 2°, the react time is long in 0°.