东南大学学报（英文版）Issue(1)：45-50,6.DOI:10.3969/j.issn.1003-7985.2014.01.009
基于事件相关电位的不同时间压力和数量下的图标记忆
Icon memory research under different time pressures and icon quantities based on event-related potential
摘要
Abstract
In order to obtain related brain electrical components and neural bases of physiology assessment of icon elements in a digital human-computer interface the modified sample-delay matching task experimental paradigm is used under different time pressures 4 000 and 2 000 ms and different icon quantities three five and ten icons on icon memory based on event-related potential ERP technology.Experimental results demonstrate that P300 has significant volatility changes and the maximum amplitude around the middle line of the parietal area PZ and P200 has obvious volatility changes around the middle line of the frontal and central area FCZ during icon cognition.P300 and P200 amplitudes increase as tasks become more difficult.Thus P300 latency is positively correlated with task difficulty. ERP research on the characteristics of icon memory will be an important reference standard in guiding user neurocognitive behavior and physiology assessment on interface usability.关键词
时间压力/图标数量/事件相关电位/P200/P300Key words
time pressure/icon quantity/event-related potential/ERP/P200/P300分类
信息技术与安全科学引用本文复制引用
牛亚峰,薛澄岐,李雪松,李晶,王海燕,金涛..基于事件相关电位的不同时间压力和数量下的图标记忆[J].东南大学学报（英文版）,2014,(1):45-50,6.基金项目
The National Natural Science Foundation of China No．7127105371071032 the Scientific Innovation Research of Col-lege Graduates in Jiangsu Province No．CXZZ12＿0093． （）
