Distorted object perception following whole-field adaptation of saccadic eye movements.

Distorted object perception following whole-field adaptation of saccadic eye movements.
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DOI:
10.1167/11.1.2
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发表时间:
2011-01-03
期刊:
影响因子:
1.8
通讯作者:
Pomplun M
Pomplun M
中科院分区:
医学4区
文献类型:
--
作者:
Garaas TW;Pomplun M

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观察者的扫视眼球运动对人工扫视后视觉误差的适应可以导致个体、瞬时视觉刺激的感知错误定位。在这项研究中,我们表明,同时扫视适应一个一致的错误模式,在大量的扫视矢量伴随着相应的空间失真的持久性物体的感知。为了诱导这种适应,我们人为地引入了几个后扫视错误模式,这导致了参与者的眼视空间的系统性失真,以及他们对十字形的相对尺寸的感知的相应失真。结果表明,眼和视觉感知空间之间的紧密耦合,不仅限于个别视觉位置的错觉,但也影响视觉感知空间中的指标。这种耦合表明,我们的视觉感知是不断重新校准的后扫视错误信号。
The adaptation of an observer’s saccadic eye movements to artificial post-saccadic visual error can lead to perceptual mislocalization of individual, transient visual stimuli. In this study, we demonstrate that simultaneous saccadic adaptation to a consistent error pattern across a large number of saccade vectors is accompanied by corresponding spatial distortions in the perception of persistent objects. To induce this adaptation, we artificially introduced several post-saccadic error patterns, which led to a systematic distortion in participants’ oculomotor space and a corresponding distortion in their perception of the relative dimensions of a cross-figure. The results indicate a tight coupling between the oculomotor and visual–perceptual spaces that is not limited to misperception of individual visual locations but also affects metrics in the visual–perceptual space. This coupling suggests that our visual perception is continuously recalibrated by the post-saccadic error signal.
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发表时间: 2008-12-17
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