摘要
目的:研究儿童在不同范围提示下视觉空间注意的事件相关电位(ERP)特征。方法:采用"提示-目标"的视觉实验范式,以圆圈提示不同等级的搜索范围,对14名儿童进行检测。通过ERP技术分析儿童不同空间注意等级的早成分。结果:随提示范围的减小,反应时加快,后部P1和N1波幅增大,前部P2波幅减小。结论:在空间注意加工的早期阶段,儿童依赖提示等级的有效性调动脑资源;而晚期阶段需要额外的脑资源。
Objective: To study the characteristic of children's Event-Related Potentials (ERP) by visual spatial attention to different spatial scaling cues. Methods: The "cue-target" experimental paradigm was adopted, and the attended range was cued by different circles. The subjects included fourteen health children. Results: The reaction time became shorter with the decrease of the cue scale, while P1 and N1 components amplitudes increased, P2 components amplitudes decreased. Conclusion: In the early stages of processing of spatial attention, children rely on the effectiveness of prompt mobilization of the brain resources; and the later stages of the brain requires additional resources.
出处
《中国临床心理学杂志》
CSSCI
CSCD
2011年第5期582-584,共3页
Chinese Journal of Clinical Psychology
基金
山东省自然科学基金项目(ZR2009CL043)
关键词
视觉空间注意
范围提示
ERP早成分
儿童
Visual spatial attention
Spatial scaling cues
Early component of event-related potentials
Children