Abstract: Adopting dual task paradigms combined with eye tracking technology, this study explored the effect of cue type and reward on event-based prospective memory. The results are as follows: 1.The main effect of cue type of prospective memory performance is significant, and the best is under the conditions of parallel and precondition; 2. Reward can improve the awareness rate of prospective cues, and also can inhibit them, but can not significantly effect that of prospective cues when they were postposition and target; 3. The eye fixation time of prospective cue under condition of post target was significantly less than that of post non-target. These results suggest that there may exist a priority processing caching mechanism in working memory, which saves the prospective cue information, the central executive system may rapidly be active the caching mechanism at the beginning of each new task, and decide whether to start the prospective task model, the activation probability of priority processing caching may be enhanced due to reward and repeated stimulation factors. After activation, the caching may independently process prospective memory information using processing channel which is different from non-prospective task.

Key words: event-based prospective memory, cue type, reward, eye tracking, priority processing effect