Neural Correlates of Subjective Awareness for Natural Scene Categorization of Color Photographs and Line-Drawings

doi:10.3389/fpsyg.2017.00210

	Neural Correlates of Subjective Awareness for Natural Scene Categorization of Color Photographs and Line-Drawings
	Fu,Qiufang1,2 ; Liu,Yong-Jin 3; Dienes,Zoltan 4; Wu,Jianhui1,5 ; Chen,Wenfeng1 ; Fu,Xiaolan1,2
第一作者	Fu, Qiufang
其他责任者	Dirk B ; Kan Zhang
通讯作者邮箱	fuqf@psych.ac.cn
心理所单位排序	1
摘要	It remains controversial whether visual awareness is correlated with early activation indicated by VAN (visual awareness negativity), as the recurrent process hypothesis theory proposes, or with later activation indicated by P3 or LP (late positive), as suggested by global workspace theories. To address this issue, a backward masking task was adopted, in which participants were first asked to categorize natural scenes of color photographs and line-drawings and then to rate the clarity of their visual experience on a Perceptual Awareness Scale (PAS). The interstimulus interval between the scene and the mask was manipulated. The behavioral results showed that categorization accuracy increased with PAS ratings for both color photographs and line-drawings, with no difference in accuracy between the two types of images for each rating, indicating that the experience rating reflected visibility. Importantly, the event-related potential (ERP) results revealed that for correct trials, the early posterior N1 and anterior P2 components changed with the PAS ratings for color photographs, but did not vary with the PAS ratings for line-drawings, indicating that the N1 and P2 do not always correlate with subjective visual awareness. Moreover, for both types of images, the anterior N2 and posterior VAN changed with the PAS ratings in a linear way, while the LP changed with the PAS ratings in a non-linear way, suggesting that these components relate to different types of subjective awareness. The results reconcile the apparently contradictory predictions of different theories and help to resolve the current debate on neural correlates of visual awareness.
关键词	visual awareness subjective measures objective measures natural scene categorization Perceptual Awareness Scale (PAS)
	2017-02-15
语种	英语
DOI	10.3389/fpsyg.2017.00210
发表期刊	FRONTIERS IN PSYCHOLOGY
ISSN	1664-1078
卷号	8 期号:210 页码:1-13
期刊论文类型	Article
URL	查看原文
收录类别	SSCI
WOS关键词	VISUAL AWARENESS ; CONSCIOUS AWARENESS ; CHANGE BLINDNESS ; ERP ; MASKING ; ACCESS ; P3B ; NEUROSCIENCE ; INTEGRATION ; ATTENTION
WOS标题词	Social Sciences
WOS研究方向	Psychology
WOS类目	Psychology, Multidisciplinary
WOS记录号	WOS:000393917500002
WOS分区	Q2
取样对象	人类
性别	男 ; 女
年龄组	青年（18岁-29岁）
被试数量	22
测试或任务	natural scene categorization; perceptual awareness scale
因变量指标	experience rating; ERPs; P1; N1; P2; N2; VAN; P3a; LP
实验仪器	NeuroScan Synamps;
统计方法	Bayes factors; repeated ANOVA; two-way ANOVAs
资助机构	Natural Science Foundation of China(31270024 ; National Natural Science Foundation of China ; German Research Foundation(NSFC 61621136008/DFG TRR-169) ; National Key Research and Development Plan(2016YFB1001200) ; 61521002)
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/21240
专题	脑与认知科学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Psychol, State Key Lab Brain & Cognit Sci, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China; 3.Tsinghua Univ, Dept Comp Sci & Technol, Tsinghua Natl Lab Informat Sci & Technol, Beijing, Peoples R China; 4.Univ Sussex, Sch Psychol, Sackler Ctr Consciousness Sci, Brighton, E Sussex, England; 5.Shenzhen Univ, Coll Psychol & Sociol, Shenzhen, Peoples R China
第一作者单位	脑与认知科学国家重点实验室
推荐引用方式 GB/T 7714	Fu,Qiufang,Liu,Yong-Jin,Dienes,Zoltan,et al. Neural Correlates of Subjective Awareness for Natural Scene Categorization of Color Photographs and Line-Drawings[J]. FRONTIERS IN PSYCHOLOGY,2017,8(210):1-13.
APA	Fu,Qiufang,Liu,Yong-Jin,Dienes,Zoltan,Wu,Jianhui,Chen,Wenfeng,&Fu,Xiaolan.(2017).Neural Correlates of Subjective Awareness for Natural Scene Categorization of Color Photographs and Line-Drawings.FRONTIERS IN PSYCHOLOGY,8(210),1-13.
MLA	Fu,Qiufang,et al."Neural Correlates of Subjective Awareness for Natural Scene Categorization of Color Photographs and Line-Drawings".FRONTIERS IN PSYCHOLOGY 8.210(2017):1-13.

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