The automatic processing of visual information at different visual acuity levels: An ERP study

被引：6

作者：

Meng, Huanhuan ^{[1
]}

Ji, Mengmeng ^{[1
]}

Luo, Bin ^{[1
]}

Zhang, Mingyang ^{[1
]}

Gao, Yuan ^{[1
]}

Ma, Lu ^{[1
]}

Shen, Xi ^{[1
]}

Luo, Chengliang ^{[1
]}

Yang, Xun ^{[2
]}

Chen, Xiping ^{[1
]}

Tao, Luyang ^{[1
]}

机构：

[1] Soochow Univ, Dept Forens Sci, Suzhou 215021, Peoples R China

[2] Soochow Univ, Lixiang Eye Hosp, Suzhou 215021, Peoples R China

来源：

INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY | 2015年 / 98卷 / 01期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Event related potentials; Visual acuity; Visual MMN; P3a; MISMATCH NEGATIVITY; POTENTIAL ERP; P3A; MMN; MODALITY; VISION; P300; TASK; VIOLATION; PARADIGM;

D O I：

10.1016/j.ijpsycho.2015.07.010

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

This study investigated the subjective visual acuity by recording ERPs elicited by task-irrelevant visual changes. Optotypes stimuli were presented in the center of the visual field at three threshold levels (supra-threshold, threshold and sub-threshold) while participants were listening to stories. The results showed that neither vMMN nor P3a component was elicited by optotypes stimuli on the sub-threshold condition, whereas, vMMN was elicited under supra-threshold and threshold conditions, with no significant differences between those vMMN amplitudes of two conditions. The P3a amplitude was larger for supra-threshold condition than that for threshold condition. These data demonstrated that the emergence of vMMN could only reflect the automatic detection of orientation-changes in the supra-threshold and threshold conditions compared to the subthreshold condition, whereas the P3a amplitude could reflect the difference in processing of supra-threshold and threshold stimuli. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：135 / 142

页数：8

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