Multisensory temporal processing in early deaf adults

在生命早期失去一种感觉会导致其余感觉的增强。行为 增强通常伴随着皮层重组，其中感觉剥夺的听觉区域 被招募来处理视觉和触觉刺激。到目前为止，对早期脑组织代偿性可塑性的研究， 聋人倾向于专注于单感官（触觉或视觉）空间处理， 被剥夺的听觉区域的募集。结合行为和神经成像测量， 本项目的目的是研究听觉剥夺对多感觉颞叶的影响， 处理，并表征这些影响背后的神经机制。具体来说，我们将 确定早期耳聋是否会损害多感觉颞叶的精确性和可塑性， 积分以及这些损伤是否是空间调制的。此外，我们将描述 聋人多感觉时间加工的神经相关和神经动力学研究 右上级颞沟（rSTS），一个多感觉区域，可能是介导 听觉剥夺后多感觉时间功能的行为改变总的来说，这 这项工作将深入了解聋人多感官时间知觉的大脑机制。 个体

The loss of one sense early in life can lead to an enhancement of the remaining senses. The behavioral enhancements are often accompanied by cortical reorganization, where sensory-deprived auditory regions are recruited for processing visual and tactile stimuli. To date, studies of compensatory plasticity in early deaf individuals have tended to focus on unisensory (either tactile or visual) spatial processing, and the recruitment of deprived auditory areas. Combining behavioral and neuroimaging measurements, the goals of this proposed project are to examine the effects of auditory deprivation on multisensory temporal processing, and to characterize the neural mechanisms underlying these effects. Specifically, we will determine whether early deafness impairs both the precision and the malleability of multisensory temporal integration and whether these impairments are spatially modulated. Furthermore, we will characterize neural correlates and neural dynamics of multisensory temporal processing in deaf individuals focusing on the right superior temporal sulcus (rSTS), a multisensory region that is the likely candidate mediating behavioral alterations in multisensory temporal functions following auditory deprivation. Taken together, this work will provide insights into the brain mechanisms underlying multisensory temporal perception in deaf individuals.