Crossmodal integration for perception and action
Crossmodal integration for perception and action
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DOI：
10.1016/j.jphysparis.2004.06.001
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发表时间：
2004-01-01
影响因子：
--
通讯作者：
Lorenceau, J
中科院分区：
文献类型：
--
作者：
Lalanne, C;Lorenceau, J
来自不同感官模式的信息的整合对于人类观察者来说有许多优点，包括增加显着性、解决感知模糊性以及对物体和周围环境的统一感知。本文回顾了在各种任务中收集的一些行为、电生理学和神经影像数据，包括空间事件的定位和检测、对象属性的跨模态感知和场景分析。所有结果都强调了跨模态交互的多个方面，并提供了一致的证据，表明大脑在通过不同模态收集的空间特征的跨模态绑定中利用了空间事件之间的空间和时间重合。此外，根据感觉线索的内在可靠性，多模态感知的阐述似乎基于每种模态贡献的自适应组合，而感觉线索本身取决于手头的任务和感觉处理中涉及的感知线索的类型。基于贝叶斯感觉估计的计算模型为感知系统执行这种跨模态集成的方式提供了有价值的解释。最近的解剖学证据表明，跨模态相互作用影响感觉处理的早期阶段，并且可以通过动态循环网络来介导，该网络涉及多模态区域的反投影以及可以调节初级感觉皮层活动的横向连接，尽管未来的行为和神经生理学研究应该可以更好地理解潜在的机制。 (C) 2004 Elsevier Ltd. 保留所有权利。
The integration of information from different sensory modalities has many advantages for human observers, including increase of salience, resolution of perceptual ambiguities, and unified perception of objects and surroundings. Several behavioral, electrophysiological and neuroimaging data collected in various tasks, including localization and detection of spatial events, crossmodal perception of object properties and scene analysis are reviewed here. All the results highlight the multiple faces of crossmodal interactions and provide converging evidence that the brain takes advantages of spatial and temporal coincidence between spatial events in the crossmodal binding of spatial features gathered through different modalities. Furthermore, the elaboration of a multimodal percept appears to be based on an adaptive combination of the contribution of each modality, according to the intrinsic reliability of sensory cue, which itself depends on the task at hand and the kind of perceptual cues involved in sensory processing. Computational models based on bayesian sensory estimation provide valuable explanations of the way perceptual system could perform such crossmodal integration. Recent anatomical evidence suggest that crossmodal interactions affect early stages of sensory processing, and could be mediated through a dynamic recurrent network involving backprojections from multimodal areas as well as lateral connections that can modulate the activity of primary sensory cortices, though future behavioral and neurophysiological studies should allow a better understanding of the underlying mechanisms. (C) 2004 Elsevier Ltd. All rights reserved.