Multisensory Pathways and Plasticity Following Partial and Full Vision Loss

部分和全部视力丧失后的多感觉通路和可塑性

基本信息

  • 批准号:
    10034974
  • 负责人:
  • 金额:
    $ 42.31万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2020
  • 资助国家:
    美国
  • 起止时间:
    2020-09-01 至 2024-04-30
  • 项目状态:
    已结题

项目摘要

Project Summary The visual cortex is known to change its functional map and connectivity with other cortical regions following partial or full vision loss, including significant repurposing among the other senses such as audition. What is unclear is whether such crossmodal incursion alters the multimodal pathways and multisensory integration of the various senses. Also, it is not yet known under what vision loss conditions (such as central vision loss with Age-Related Macular Degeneration, peripheral vision loss with Retinitis Pigmentosa, or full vision loss due to numerous causes) multisensory integration is facilitated (or suppressed), and whether these changes vary with retinal location. Such knowledge is critical to develop a more complete theoretical model of multisensory integration; to better evaluate potential for rehabilitation in those with vision loss; to provide a solid basis for the development of advanced retinal prostheses, sensory aids, and sensory substitution devices; and to develop optimal multisensory training and rehabilitation paradigms following visual restoration. To this end, we propose to determine the spatial and temporal characteristics of auditory-visual (A-V) integration in individuals with low vision (Specific Aim 1). More specifically, we will use a set of auditory-visual illusions as a psychophysical tool to determine the degree of A-V integration in various retinal locations as a function of both eccentricity from the fovea and proximity to regions of visual loss. We also propose to examine the viability of visual processing and crossmodal integration in those with low vision and the late blind by employing both A-V illusions and mental imagery (Specific Aim 2). We will determine whether multisensory integration from imagined visual stimuli can integrate with real auditory stimuli in the late blind to change the perceived location of auditory stimuli, including auditory spatial perception in the horizontal plane and in depth. The results from these two aims will provide an assessment of the key characteristics of auditory-visual interactions in the blind and those with low vision, and will identify differences in these multisensory interactions that are specific to the cause of vision loss. We also plan to identify the neural correlates of such crossmodal interactions and integrations using fMRI imaging (Specific Aim 3). We will examine key differences in visual cortical activity, as well as the connectivity patterns among auditory, visual, and multisensory cortices, by comparing low vision and late blind participants with sighted controls. A comprehensive understanding of the multisensory processing capabilities of low vision and late blind individuals will provide crucial insights into the consequences of functional reorganization in the human brain, and will also pave the way for advanced multisensory aids, visual prostheses, and rehabilitation protocols.
项目总结

项目成果

期刊论文数量(0)
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会议论文数量(0)
专利数量(0)

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SHINSUKE SHIMOJO其他文献

SHINSUKE SHIMOJO的其他文献

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{{ truncateString('SHINSUKE SHIMOJO', 18)}}的其他基金

Multisensory Pathways and Plasticity Following Partial and Full Vision Loss
部分和全部视力丧失后的多感觉通路和可塑性
  • 批准号:
    10626007
  • 财政年份:
    2020
  • 资助金额:
    $ 42.31万
  • 项目类别:
Multisensory Pathways and Plasticity Following Partial and Full Vision Loss
部分和全部视力丧失后的多感觉通路和可塑性
  • 批准号:
    10238094
  • 财政年份:
    2020
  • 资助金额:
    $ 42.31万
  • 项目类别:
Multisensory Pathways and Plasticity Following Partial and Full Vision Loss
部分和全部视力丧失后的多感觉通路和可塑性
  • 批准号:
    10405042
  • 财政年份:
    2020
  • 资助金额:
    $ 42.31万
  • 项目类别:
Temporal Rate Adaption-Evidence for Supramodal Timing Mechanisms?
时间速率适应——超模态计时机制的证据?
  • 批准号:
    8712500
  • 财政年份:
    2013
  • 资助金额:
    $ 42.31万
  • 项目类别:
Temporal Rate Adaption-Evidence for Supramodal Timing Mechanisms?
时间速率适应——超模态计时机制的证据?
  • 批准号:
    8576345
  • 财政年份:
    2013
  • 资助金额:
    $ 42.31万
  • 项目类别:
DEVELOPMENT OF AUDITORY-VISUAL LOCALIZATION
听觉视觉定位的发展
  • 批准号:
    6536209
  • 财政年份:
    2001
  • 资助金额:
    $ 42.31万
  • 项目类别:
Coordinate Transformation in Aftereffects and Attention
协调后效和注意力的转变
  • 批准号:
    7273548
  • 财政年份:
    2001
  • 资助金额:
    $ 42.31万
  • 项目类别:
Coordinate Transformation in Aftereffects and Attention
协调后效和注意力的转变
  • 批准号:
    6777805
  • 财政年份:
    2001
  • 资助金额:
    $ 42.31万
  • 项目类别:
Coordinate Transformation in Aftereffects and Attention
协调后效和注意力的转变
  • 批准号:
    7112258
  • 财政年份:
    2001
  • 资助金额:
    $ 42.31万
  • 项目类别:
DEVELOPMENT OF AUDITORY-VISUAL LOCALIZATION
听觉视觉定位的发展
  • 批准号:
    6637973
  • 财政年份:
    2001
  • 资助金额:
    $ 42.31万
  • 项目类别:

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