Structure-from-motion: dissociating perception, neural persistence, and sensory memory of illusory depth and illusory rotation
Structure-from-motion: dissociating perception, neural persistence, and sensory memory of illusory depth and illusory rotation
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运动结构：分离知觉、神经持久性以及幻觉深度和幻觉旋转的感觉记忆
DOI：
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
J. Braun
中科院分区：
文献类型：
--
作者：
A. Pastukhov;J. Braun
在运动生成结构的范例中，屏幕上的物理运动产生了物体在深度上旋转的生动幻觉。在这里，我们展示了如何解离虚幻的深度和虚幻的旋转结构从运动刺激使用旋转不对称的形状和逆转的物理运动。物理运动的逆转在原始的虚幻状态和新的物理运动之间产生了冲突：要么虚幻的深度保持不变而虚幻的旋转逆转，要么虚幻的旋转保持不变而虚幻的深度逆转。当物理运动在呈现中断后逆转时，我们发现错觉旋转在长的空白持续时间（Tblank ≥ 0.5 s）内趋于保持恒定，但错觉深度在中断较短（Tblank ≤ 0.1 s）时稳定。错觉深度在短暂中断时的稳定性与神经持续性的影响是一致的。当这是削减使用面具，模糊的视觉（无论是虚幻的深度或虚幻旋转）的稳定性被破坏。我们还研究了错觉深度的神经持久性的选择性。我们发现，它依赖于一个静态表示的内插虚幻的对象，因为低级别的显示属性的变化几乎没有不利影响。我们讨论我们的研究结果与其他类型的历史依赖多稳态显示器（感觉稳定记忆，神经疲劳等）。我们的研究结果表明，当短暂的中断是在演示过程中使用的多稳态显示器，开关的感知很可能依赖于相同的神经机制，自发开关，而不是开关，由于在刺激开始的初始的选择。
In the structure-from-motion paradigm, physical motion on a screen produces the vivid illusion of an object rotating in depth. Here, we show how to dissociate illusory depth and illusory rotation in a structure-from-motion stimulus using a rotationally asymmetric shape and reversals of physical motion. Reversals of physical motion create a conflict between the original illusory states and the new physical motion: Either illusory depth remains constant and illusory rotation reverses, or illusory rotation stays the same and illusory depth reverses. When physical motion reverses after the interruption in presentation, we find that illusory rotation tends to remain constant for long blank durations (Tblank ≥ 0.5 s), but illusory depth is stabilized if interruptions are short (Tblank ≤ 0.1 s). The stability of illusory depth over brief interruptions is consistent with the effect of neural persistence. When this is curtailed using a mask, stability of ambiguous vision (for either illusory depth or illusory rotation) is disrupted. We also examined the selectivity of the neural persistence of illusory depth. We found that it relies on a static representation of an interpolated illusory object, since changes to low-level display properties had little detrimental effect. We discuss our findings with respect to other types of history dependence in multistable displays (sensory stabilization memory, neural fatigue, etc.). Our results suggest that when brief interruptions are used during the presentation of multistable displays, switches in perception are likely to rely on the same neural mechanisms as spontaneous switches, rather than switches due to the initial percept choice at the stimulus onset.
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DOI：
10.1073/pnas.0407157102
发表时间：
2005-02-22
影响因子：
11.1
作者：
Maloney, LT;Dal Martello, MF;Spillmann, L
通讯作者：
Spillmann, L
影响因子：
56.9
作者：
NAWROT, M;BLAKE, R
通讯作者：
BLAKE, R
影响因子：
1.8
作者：
Meng, M;Tong, F
通讯作者：
Tong, F
影响因子：
1.8
作者：
Shannon RW;Patrick CJ;Jiang Y;Bernat E;He S
通讯作者：
He S