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Linear integration of multisensory signals in the pupil

文献类型：期刊论文

作者Liu, Wenjie2,3,4; Cheng, Yuhui2,3,4; Yuan, Xiangyong1,2,3,4; Jiang, Yi2,3,4
刊名PSYCHOPHYSIOLOGY
出版日期2023-10-09
页码13
ISSN号0048-5772
关键词additive multisensory integration oscillation pupil size pupillary light reflex
DOI10.1111/psyp.14453
通讯作者Yuan, Xiangyong(yuanxy@psych.ac.cn)
英文摘要The pupil of the eye responds to various salient signals from different modalities, but there is no consensus on how these pupillary responses are integrated when multiple signals appear simultaneously. Both linear and nonlinear integration have been found previously. The current study aimed to reexamine the nature of pupillary integration, and specifically focused on the early, transient pupillary responses due to its close relationship with orienting. To separate the early pupillary responses out of the pupil time series, we adopted a pupil oscillation paradigm in which sensory stimuli were periodically presented. The simulation analysis confirmed that the amplitude of the pupil oscillation, induced by stimuli repeatedly presented at relatively high rates, can precisely reflect the early, transient pupillary responses without involving the late and sustained pupillary responses. The experimental results then showed that the amplitude of pupil oscillation induced by a series of simultaneous audiovisual stimuli equaled to a linear summation of the oscillatory amplitudes when unisensory stimuli were presented alone. Moreover, the tonic arousal levels, indicated by the baseline pupil size, cannot shift the summation from linear to nonlinear. These findings together support the additive nature of multisensory pupillary integration for the early, orienting-related pupillary responses. The additive nature of pupillary integration further implies that multiple pupillary responses may be independent of each other, irrespective of their potential cognitive and neural drivers. The current study tapped into the controversial issue of how pupillary responses to multisensory signals are integrated, and specifically focused on the early, transient pupillary responses due to its close relationship with orienting. Using a simulation analysis and a pupil oscillation paradigm, we demonstrated a linear integration of the early pupillary responses.
收录类别SCI
WOS关键词LOCUS-COERULEUS ; ADAPTIVE GAIN ; RESPONSES ; DILATION ; MODULATION ; SOFTWARE ; DIAMETER ; CONTRAST ; POWER ; SIZE
资助项目This research was supported by grants from the STI2030-Major Projects (2021ZD0204200, 2021ZD0203800), the National Natural Science Foundation of China (31830037, 31600884), the Interdisciplinary Innovation Team (JCTD-2021-06), Youth Innovation Promotion As[2021ZD0204200] ; This research was supported by grants from the STI2030-Major Projects (2021ZD0204200, 2021ZD0203800), the National Natural Science Foundation of China (31830037, 31600884), the Interdisciplinary Innovation Team (JCTD-2021-06), Youth Innovation Promotion As[2021ZD0203800] ; National Natural Science Foundation of China[31830037] ; National Natural Science Foundation of China[31600884] ; Interdisciplinary Innovation Team[JCTD-2021-06] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities
WOS研究方向Psychology ; Neurosciences & Neurology ; Physiology
语种英语
出版者WILEY
WOS记录号WOS:001077984900001
资助机构This research was supported by grants from the STI2030-Major Projects (2021ZD0204200, 2021ZD0203800), the National Natural Science Foundation of China (31830037, 31600884), the Interdisciplinary Innovation Team (JCTD-2021-06), Youth Innovation Promotion As ; National Natural Science Foundation of China ; Interdisciplinary Innovation Team ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities
源URL[http://ir.psych.ac.cn/handle/311026/46202]  
专题心理研究所_脑与认知科学国家重点实验室
通讯作者Yuan, Xiangyong
作者单位1.Chinese Acad Sci, Inst Psychol, State Key Lab Brain & Cognit Sci, 16 Lincui Rd, Beijing 100101, Peoples R China
2.Chinese Inst Brain Res, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Dept Psychol, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Psychol, State Key Lab Brain & Cognit Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Wenjie,Cheng, Yuhui,Yuan, Xiangyong,et al. Linear integration of multisensory signals in the pupil[J]. PSYCHOPHYSIOLOGY,2023:13.
APA Liu, Wenjie,Cheng, Yuhui,Yuan, Xiangyong,&Jiang, Yi.(2023).Linear integration of multisensory signals in the pupil.PSYCHOPHYSIOLOGY,13.
MLA Liu, Wenjie,et al."Linear integration of multisensory signals in the pupil".PSYCHOPHYSIOLOGY (2023):13.

入库方式： OAI收割

来源：心理研究所

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