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首页> 美国卫生研究院文献>Frontiers in Integrative Neuroscience >Attentional Resource Allocation in Visuotactile Processing Depends on the Task But Optimal Visuotactile Integration Does Not Depend on Attentional Resources
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Attentional Resource Allocation in Visuotactile Processing Depends on the Task But Optimal Visuotactile Integration Does Not Depend on Attentional Resources

机译：触觉加工中的注意力资源分配取决于任务但是最佳的触觉整合并不取决于注意力资源

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Humans constantly process and integrate sensory input from multiple sensory modalities. However, the amount of input that can be processed is constrained by limited attentional resources. A matter of ongoing debate is whether attentional resources are shared across sensory modalities, and whether multisensory integration is dependent on attentional resources. Previous research suggested that the distribution of attentional resources across sensory modalities depends on the the type of tasks. Here, we tested a novel task combination in a dual task paradigm: Participants performed a self-terminated visual search task and a localization task in either separate sensory modalities (i.e., haptics and vision) or both within the visual modality. Tasks considerably interfered. However, participants performed the visual search task faster when the localization task was performed in the tactile modality in comparison to performing both tasks within the visual modality. This finding indicates that tasks performed in separate sensory modalities rely in part on distinct attentional resources. Nevertheless, participants integrated visuotactile information optimally in the localization task even when attentional resources were diverted to the visual search task. Overall, our findings suggest that visual search and tactile localization partly rely on distinct attentional resources, and that optimal visuotactile integration is not dependent on attentional resources.
机译：人类不断地处理和整合来自多种感觉形态的感觉输入。但是，可以处理的输入量受到有限的注意力资源的限制。正在进行的辩论是，注意力资源是否在各种感官方式之间共享，以及多感官整合是否依赖于注意力资源。先前的研究表明，注意力在各种感觉方式上的分配取决于任务的类型。在这里，我们在双重任务范式中测试了一种新颖的任务组合：参与者在视觉模态中以独立的感觉模态（即触觉和视觉）或同时在两个视觉模态中执行了自我终止的视觉搜索任务和定位任务。任务大大干扰了。但是，与在视觉模态中执行两个任务相比，当在触觉模态中执行定位任务时，参与者执行视觉搜索任务的速度更快。这一发现表明，以单独的感觉方式执行的任务部分依赖于不同的注意力资源。然而，即使注意力资源被转移到视觉搜索任务中，参与者也可以将视触觉信息最佳地集成到定位任务中。总体而言，我们的发现表明视觉搜索和触觉定位部分依赖于不同的注意力资源，而最佳的触觉整合并不依赖于注意力资源。

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