AUDITORY-VISUAL INTERACTION IN SINGLE CELLS IN CORTEX OF SUPERIOR TEMPORAL SULCUS AND ORBITAL FRONTAL CORTEX OF MACAQUE MONKEY
AUDITORY-VISUAL INTERACTION IN SINGLE CELLS IN CORTEX OF SUPERIOR TEMPORAL SULCUS AND ORBITAL FRONTAL CORTEX OF MACAQUE MONKEY
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DOI：
10.1016/0014-4886(77)90112-1
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发表时间：
1977-01-01
影响因子：
5.3
通讯作者：
REZAK, M
中科院分区：
文献类型：
--
作者：
BENEVENTO, LA;FALLON, J;REZAK, M
以前的解剖学研究表明，上级颞沟和眶额皮质的皮质接受会聚皮质和丘脑皮质的投影，代表不同的感觉方式。在本实验中，细胞内和细胞外的记录在这些皮层区域，以确定是否个别细胞接收多感官信息，如果不同的medalities之间的相互作用是在皮层细胞的局部收敛的结果。结果表明，许多神经元具有包括中央凹在内的双侧视觉感受野，对运动刺激敏感。这些神经元中的许多也被听觉刺激兴奋或抑制。对于这两种方式的各种ON或OFF兴奋和抑制作用。结果进一步表明，在这两个地区的神经元表现出视觉的相互作用，这些相互作用中至少有一些是由于在皮层细胞的收敛。例如，我们发现特定频率的听觉刺激对许多神经元具有强大的抑制作用，这种抑制作用可以抵消视觉刺激引起的兴奋。这些类型的相互作用与解剖输入有关，并且可能是涉及这些区域中的每一个的注意力和辨别力的可能机制。
Previous anatomical studies show that the cortex of the superior temporal sulcus and the orbital frontal cortex receive convergent corticocortical and thalamocortical projections which represent different sensory modalities. In the present experiments both intracellular and extracellular recordings were made in these cortical regions to determine if the individual cells receive polysensory information and if interactions between different medalities are a result of local convergence at the cortical cell. The results show that many neurons have visual receptive fields which are bilateral, include the fovea, and are sensitive to moving stimuli. Many of these neurons are also excited or inhibited by auditory stimuli. For both modalities a variety of ON or OFF excitatory and inhibitory effects was seen. The results further indicate that neurons in both regions show auditory-visual interactions and that at least some of these interactions are due to convergence at the cortical cell. For example, we found that auditory stimuli of a specific frequency had a powerful inhibitory effect on many of the neurons and that this inhibitory effect could negate the excitation caused by a visual stimulus. These types of interactions are related to the anatomical inputs and may be possible mechanism implicating each of these regions in attention and discrimination.