Abstract
A novel task requires forming, maintaining, and executing a task model, which is a mental model concerning whole body of information about the task. In addition, when the context of the task changes, we have to inhibit the old task model and to form a new task model effectively. Our research investigated individual differences in prospective memory task performance in a situation facing the change of the task context. The task context was manipulated by increasing the occurrence frequency of the prospective targets cuing the execution of an intended action during the latter phase. The results showed that the detection rate of the prospective memory targets in the first block of the later high frequency phase correlated with the individual performance of the shifting task. We suggest that the adjustment of the task model involves shifting function.
