EEG Correlates of Perceptual Reversals in Boring's Ambiguous Old/Young Woman Stimulus
EEG Correlates of Perceptual Reversals in Boring's Ambiguous Old/Young Woman Stimulus
复制标题
无聊的模糊老/年轻女人刺激中知觉逆转的脑电图相关性
作者：
Kornmeier J ;Bach M
模棱两可的数字吸引观察者，因为感知在不同的解释之间交替，而感官信息保持不变。理解潜在的过程是困难的，因为需要知道这种内源性逆转事件的精确时刻，但很难测量。不连续地呈现模糊的数字，并使用刺激起始作为反转事件的估计，增加了时间分辨率，并提供了一系列确认良好的EEG签名。在目前的EEG研究中，我们第一次使用这种“发作范式”与无聊的老/年轻女性刺激。我们发现了一个早期的枕叶事件相关电位（ERP）相关的逆转之间的看法，老妇人和年轻女子的看法，符合与以前的ERP研究结果。在260 ms时，该分量之后不是经常报告的枕顶反射负性，而是枕颞N170，这通常与面部刺激一起报告。我们解释我们的研究结果如下：歧义冲突发生在处理过程中的刺激元素在早期视觉区刺激发作后约130毫秒。这些元素和它们的组装对象的“完形”的歧义消除的结果从早期视觉和对象特定的大脑区域之间的相互作用在刺激开始后130和260毫秒之间的时间窗口。在Boring的老/年轻女人的特定情况下，元素消歧和完形构建的过程已经在170 ms完成，因此，比模糊的几何图形（例如Necker立方体或Schroeder楼梯）或双目竞争光栅的情况早90 ms。
Ambiguous figures attract observers because perception alternates between different interpretations while the sensory information stays unchanged. Understanding the underlying processes is difficult because the precise time instant of this endogenous reversal event needs to be known but is difficult to measure. Presenting ambiguous figures discontinuously and using stimulus onset as estimation of the reversal event increased temporal resolution and provided a series of well-confirmed EEG signatures. In the current EEG study we used this ‘onset paradigm’ for the first time with Boring's old/young woman stimulus. We found an early occipital event-related potential (ERP) correlate of reversals between the perception of the old woman and the perception of the young woman that fits well with previous ERP findings. This component was not followed by the often-reported occipito-parietal Reversal Negativity at 260 ms, but instead by an occipito-temporal N170, that is typically reported with face stimuli. We interpret our results as follows: Ambiguity conflicts take place during processing of stimulus elements in early visual areas roughly 130 ms after stimulus onset. The disambiguation of these elements and their assembly to object ‘gestalts’ result from an interplay between early visual and object-specific brain areas in a temporal window between 130 and 260 ms after stimulus onset. In the particular case of Boring's old/young woman the processes of element disambiguation and gestalt construction are already finished at 170 ms and, thus, 90 ms earlier than in the case of ambiguous geometric figures (eg Necker cube or Schroeder staircase) or of binocular rivalrous gratings.
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影响因子：
3.7
作者：
Kornmeier, Juergen;Ehm, Werner;Bach, Michael
通讯作者：
Bach, Michael
影响因子：
1.8
作者：
Noest, A. J.;van Ee, R.;van Wezel, R. J. A.
通讯作者：
van Wezel, R. J. A.
在注意力资源有限的间歇性演示过程中，内克刺激的知觉逆转。
影响因子：
3.7
作者：
M. Intaitė;M. Koivisto;A. Revonsuo
通讯作者：
A. Revonsuo
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：
--
发表时间：
2012
期刊：
Attention, Perception, & Psychophysics
影响因子：
--
作者：
A. Pastukhov;J. Braun
通讯作者：
J. Braun
影响因子：
3.7
作者：
Pitts MA;Martínez A;Stalmaster C;Nerger JL;Hillyard SA
通讯作者：
Hillyard SA