Department of Neurology, Emory University School of Medicine Atlanta, GA, USA.
Department of Neurology, Emory University School of Medicine Atlanta, GA, USA ; Department of Rehabilitation Medicine, Emory University School of Medicine Atlanta, GA, USA ; Department of Psychology, Emory University School of Medicine Atlanta, GA, USA ; Rehabilitation Research and Development Center of Excellence, Atlanta Veterans Affairs Medical Center Decatur, GA, USA.
Front Psychol. 2014 Jul 17;5:730. doi: 10.3389/fpsyg.2014.00730. eCollection 2014.
Visual and haptic unisensory object processing show many similarities in terms of categorization, recognition, and representation. In this review, we discuss how these similarities contribute to multisensory object processing. In particular, we show that similar unisensory visual and haptic representations lead to a shared multisensory representation underlying both cross-modal object recognition and view-independence. This shared representation suggests a common neural substrate and we review several candidate brain regions, previously thought to be specialized for aspects of visual processing, that are now known also to be involved in analogous haptic tasks. Finally, we lay out the evidence for a model of multisensory object recognition in which top-down and bottom-up pathways to the object-selective lateral occipital complex are modulated by object familiarity and individual differences in object and spatial imagery.
视觉和触觉单感官物体处理在分类、识别和表示方面有许多相似之处。在这篇综述中，我们讨论了这些相似之处如何有助于多感官物体处理。特别是，我们表明，相似的单感官视觉和触觉表示导致了跨模态物体识别和视图独立性的基础上的共享多感官表示。这种共享的表示表明存在一个共同的神经基础，我们回顾了几个以前被认为专门用于视觉处理方面的候选大脑区域，现在已知也涉及类似的触觉任务。最后，我们提出了一个多感官物体识别模型的证据，其中到对象选择性外侧枕叶复合体的自上而下和自下而上的途径被对象熟悉度和对象和空间意象的个体差异所调节。
