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Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants
Dong Guo-Zhen1,2; Yang Zhi1; Zhang Zhao-Qi3; Yu Wei3; Li Jing-Wei1; He Yi3; Zhang, John X.4; Weng Xu-Chu1; J. X. Zhang; X. C. Weng
2009-08-01
Source PublicationPROGRESS IN BIOCHEMISTRY AND BIOPHYSICS
ISSN1000-3282
SubtypeArticle
Volume36Issue:8Pages:987-993
AbstractSensory 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.
Keywordvisual cortex auditory stimulation functional MRI cross-modality
Subject Area认知神经科学
Indexed BySCI
Language英语
WOS IDWOS:000269408700006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/5831
Collection中国科学院心理研究所回溯数据库(1956-2010)
Corresponding AuthorJ. X. Zhang; X. C. Weng
Affiliation1.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
Recommended Citation
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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