Abstract: In order to investigatetennis players' mode of perception and their brain activity features under the dynamic cue condition, the study recorded and analyzed through the "expert-novice" paradigm and the event-related potential (ERP) technology the behaviors and EEG data of expert group (10 tennis players) and novice group (10 university students) in performing the modified cue-target tasks adapted from dynamic cue materials. The results showed that under the dynamic cue condition, tennis players had shorter reaction time and better accuracy than the novices in completing target-stimulated tasks; in addition, brain activity revealed that before the stimulus occurred, expert group's CNV area was larger than that of the novice group under the dynamic cue condition; after the stimulus occurred, expert group's early latency of N1 was longer than that of the novice group, and their late P300 peak was significantly higher than that of the novice group. It can be inferred that under dynamic cue condition, tennis players have advantage over novices in perception, thus enabling them to react more quickly and accurately; invest more resources in the preparation period; focus on critical information and as a result distribute their cognitive resources more efficiently.

Key words: dynamic cues, tennis players, cognitive process, event-rolatecl potential(ERP)