Auditory-somatosensory multisensory processing in auditory association cortex: An fMRI study
Auditory-somatosensory multisensory processing in auditory association cortex: An fMRI study
复制标题
DOI：
10.1152/jn.2002.88.1.540
复制
发表时间：
2002-07-01
影响因子：
2.5
通讯作者：
Murray, MM
中科院分区：
文献类型：
--
作者：
Foxe, JJ;Wylie, GR;Murray, MM
使用高场（3 Tesla）功能磁共振成像（fMRI），我们证明了听觉和体感输入沿着颞上回的次颞叶，在人类听觉皮层的一个子区域中汇聚。此外，两种感觉方式的同时刺激都导致了超过活动的活性，从而将对单相输入的响应求和，从而显示了该收敛区域中的多感官整合。最近，猕猴中的颅内记录显示了直接在听觉皮层的子区域中直接尾膜的听觉 - 体感觉收敛到原发性听觉皮层（区域CM）。本研究中鉴定出的多感官区域可能是CM的人类同源物。我们在早期听觉皮层中对听觉 - 体积收敛的发现有助于在皮质加工层次结构早期的多感觉整合的证据，以前被认为是单性的大脑区域。
Using high-field (3 Tesla) functional magnetic resonance imaging (fMRI), we demonstrate that auditory and somatosensory inputs converge in a subregion of human auditory cortex along the superior temporal gyrus. Further, simultaneous stimulation in both sensory modalities resulted in activity exceeding that predicted by summing the responses to the unisensory inputs, thereby showing multisensory integration in this convergence region. Recently, intracranial recordings in macaque monkeys have shown similar auditory-somatosensory convergence in a subregion of auditory cortex directly caudomedial to primary auditory cortex (area CM). The multisensory region identified in the present investigation may be the human homologue of CM. Our finding of auditory-somatosensory convergence in early auditory cortices contributes to mounting evidence for multisensory integration early in the cortical processing hierarchy, in brain regions that were previously assumed to be unisensory.