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Olfaction Warps Visual Time Perception
Zhou, Bin1,2; Feng, Guo1,2; Chen, Wei1,2; Zhou, Wen1,2
2018-05-01
Source PublicationCEREBRAL CORTEX
ISSN1047-3211
SubtypeArticle
Volume28Issue:5Pages:1718-1728
Contribution Rank1
Abstract

Our perception of the world builds upon dynamic inputs from multiple senses with different temporal resolutions, and is threaded with the passing of subjective time. How time is extracted from multisensory inputs is scantly known. Utilizing psychophysical testing and electroencephalography, we show in healthy human adults that odors modulate object visibility around critical flicker-fusion frequency (CFF)-the limit at which chromatic flickers become perceived as a stable color-and effectively alter CFF in a congruency-based manner, despite that they afford no clear environmental temporal information. The behavioral gain produced by a congruent relative to an incongruent odor is accompanied by elevated neural oscillatory power around the object's flicker frequency in the right temporal region similar to 150-300 ms after object onset, and is not mediated by visual awareness. In parallel, odors bias the subjective duration of visual objects without affecting one's temporal sensitivity. These findings point to a neuronal network in the right temporal cortex that executes flexible temporal filtering of upstream visual inputs based on olfactory information. Moreover, they collectively indicate that the very process of sensory integration at the stage of object processing twists time perception, hence casting new insights into the neural timing of multisensory events.

Keywordcritical flicker-fusion multisensory integration odor subjective duration temporal processing
DOI10.1093/cercor/bhx068
Indexed BySCI ; SSCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(31422023 ; Strategic Priority Research Program(XDB02030006 ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences(QYZDB-SSW-SMC030) ; 31100735) ; XDB02010003)
WOS Research AreaNeurosciences & Neurology
WOS SubjectNeurosciences
WOS IDWOS:000431890800012
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS KeywordMULTISENSORY INTEGRATION ; OBJECT-RECOGNITION ; SPATIAL ATTENTION ; TEMPORAL CORTEX ; RESPONSES ; DISCRIMINATION ; SYNCHRONIZATION ; INFORMATION ; ACTIVATION ; FREQUENCY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/26210
Collection中国科学院行为科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Psychol, CAS Ctr Excellence Brain Sci & Intelligence Techn, CAS Key Lab Behav Sci, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Dept Psychol, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Bin,Feng, Guo,Chen, Wei,et al. Olfaction Warps Visual Time Perception[J]. CEREBRAL CORTEX,2018,28(5):1718-1728.
APA Zhou, Bin,Feng, Guo,Chen, Wei,&Zhou, Wen.(2018).Olfaction Warps Visual Time Perception.CEREBRAL CORTEX,28(5),1718-1728.
MLA Zhou, Bin,et al."Olfaction Warps Visual Time Perception".CEREBRAL CORTEX 28.5(2018):1718-1728.
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