ObjectiveTo explore the brain mechanism of cognitive process of mental rotation by comparing the P300 and topography of ERP between classification and mental rotation tasks.

• 目的通过比较分类任务与心理旋转任务的事件相关电位(Event Related Potential,ERP)P300平均波幅和脑地形图,探讨心理旋转认知加工的脑机制。