Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants

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	Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants
	Dong Guo-Zhen 1,2; Yang Zhi1 ; Zhang Zhao-Qi 3; Yu Wei 3; Li Jing-Wei1 ; He Yi 3; Zhang, John X.4; Weng Xu-Chu1 ; J. X. Zhang ; X. C. Weng
摘要	Sensory substitution has been reported in recent brain imaging studies with blind people and others with sensory deficits so that sensory cortical regions traditionally considered unimodal respond to stimulation from other sensory modalities. Similar effects are also found for normal sighted people with sensory deprivation (blindfolded), indicative of pre-existing neuronal pathways for multiple sensory interactions. Such pathways are considered latent in that they only become unmasked or potentiated in the event of sensory deafferentation, although whether sensory deprivation is necessary to expose these pathways is unclear due to inconclusive evidence. With a relatively strong power in experimental design, visual cortical activation was observed when normal sighted participants (not blindfolded) judged whether auditorily-presented nouns referred to artificial or natural objects. The results suggest the above mentioned pathways can be exposed without sensory deafferentation and therefore are not totally latent. This establishes a boundary condition constraining theoretical models for the neural basis of multiple sensory interactions.; Sensory substitution has been reported in recent brain imaging studies with blind people and others with sensory deficits so that sensory cortical regions traditionally considered unimodal respond to stimulation from other sensory modalities. Similar effects are also found for normal sighted people with sensory deprivation (blindfolded), indicative of pre-existing neuronal pathways for multiple sensory interactions. Such pathways are considered latent in that they only become unmasked or potentiated in the event of sensory deafferentation, although whether sensory deprivation is necessary to expose these pathways is unclear due to inconclusive evidence. With a relatively strong power in experimental design, visual cortical activation was observed when normal sighted participants (not blindfolded) judged whether auditorily-presented nouns referred to artificial or natural objects. The results suggest the above mentioned pathways can be exposed without sensory deafferentation and therefore are not totally latent. This establishes a boundary condition constraining theoretical models for the neural basis of multiple sensory interactions.
关键词	visual cortex auditory stimulation functional MRI cross-modality
学科领域	认知神经科学
	2009-08-01
语种	英语
发表期刊	PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS
ISSN	1000-3282
卷号	36 期号:8 页码:987-993
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000269408700006
引用统计
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/5831
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	J. X. Zhang; X. C. Weng
作者单位	1.Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Anzhen Hosp, Dept Radiol, Beijing 100029, Peoples R China 4.Chinese Univ Hong Kong, Dept Psychol, Hong Kong 260350, Hong Kong, Peoples R China
第一作者单位	中国科学院心理研究所
推荐引用方式 GB/T 7714	Dong Guo-Zhen,Yang Zhi,Zhang Zhao-Qi,et al. Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants[J]. PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS,2009,36(8):987-993.
APA	Dong Guo-Zhen.,Yang Zhi.,Zhang Zhao-Qi.,Yu Wei.,Li Jing-Wei.,...&X. C. Weng.(2009).Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants.PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS,36(8),987-993.
MLA	Dong Guo-Zhen,et al."Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants".PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS 36.8(2009):987-993.

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