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Neural coupling binds visual tokens to moving stimuli.

机译:神经耦合将视觉标记绑定到移动的刺激。

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摘要

Spatially separated visual objects that appear in alternating sequence can be perceived as a single moving object. This phenomenon of apparent motion enables us to perceive sequentially presented images as a motion picture. How does the visual system bind together single visual tokens to one moving object? Here we report a series of experiments investigating apparent motion with electroencephalographic recordings showing that gamma-band oscillatory coupling in the visual cortex is crucial for this phenomenon. We used an ambiguous stimulus that could be perceived as moving either vertically or horizontally. Because visual information from the right and left visual hemifields is routed to the contralateral early visual cortex, in the case of perceived horizontal movement, information from both hemispheres has to be integrated. In accord with this assumption, our data show stronger oscillatory coupling between right and left visual cortices during perception of horizontal motion compared with vertical motion.
机译:以交替顺序出现的空间分离的视觉对象可以被视为单个移动对象。这种视在运动现象使我们能够将顺序呈现的图像感知为运动图像。视觉系统如何将单个视觉标记绑定到一个运动对象?在这里,我们报告了一系列的实验,用脑电图记录了明显的运动,表明视觉皮层中的伽马波段振荡耦合对该现象至关重要。我们使用了一种模棱两可的刺激措施,可以将其视为垂直或水平移动。由于来自左右半球视野的视觉信息被路由到对侧早期视觉皮层,因此在感知到水平运动的情况下,必须将来自两个半球的信息整合在一起。根据此假设,我们的数据显示,与垂直运动相比,水平运动的感知过程中左右视觉皮层之间的振荡耦合更强。

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