【摘要】 采用事件相关电位技术考察数学学习困难（数困）初中生和对照组学生在心理旋转上的行为特点以及脑内时程特点和差异。结果显示：数学学习困难学生存在心理旋转的缺陷，表现差于对照组学生，具体表现为数学学习困难学生在任务的行为指标（正确率和反应时）上均差于对照组学生；在脑电结果方面，数学学习困难学生在处理心理旋转任务时P300和P500成分的波幅衰减。以上结果均反映了数学学习困难学生的心理旋转处理能力是受损的，并且这种损伤主要发生在心理旋转加工的中后期。更多还原

【Abstract】 An event-related potential study was conducted on middle school students with mathematical learning difficulties and the control group through psychological rotation, to investigate the behavioral characteristics of mental rotation and the characteristics and differences of intracranial time history of the two groups of students. The results showed that the students with difficulty in learning mathematics had the defect of mental rotation, and their performance was worse than that of the control group. The results showed that the students with difficulty in mathematics learning were worse than the control group in task accuracy and response time. The results showed that the mental rotation processing ability of the students with difficulty in mathematics learning was impaired. When dealing with mental rotation, the behavior of students with learning difficulties in mathematics decreased, and the amplitude of P300 and P500 decreased.更多还原