Rapid global form binding with loss of associated colors.

Rapid global form binding with loss of associated colors.
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快速全局表单绑定,但相关颜色会丢失。

DOI:
10.1167/4.12.8
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发表时间:
2004
期刊:
影响因子:
1.8
通讯作者:
Pearson,Joel
Pearson,Joel
中科院分区:
医学4区
文献类型:
--
作者:
Clifford,ColinWG;Holcombe,AlexO;Pearson,Joel

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分布式神经处理产生了一个绑定问题:对象的各种特征的表示分布在大脑区域中,但必须与同一对象关联或绑定。在这里,我们确定了绑定对由定向点对定义的静态流场中的全局形式的感知施加的限制。局部方向信号与全局形式的绑定被证明以 20 Hz 的快速速率运行,这意味着全局形式提取点的视觉信号保留了精确的时间配准。将全局形式与颜色绑定的速率限制为 3-5Hz,这表明跨属性的绑定可能会对感知施加严格的时间限制。对全局结构的时间序列的判断也仅限于缓慢的速率。这些结果表明,在提取全局形式之后但在视觉意识之前,视觉系统的时间分辨率显着损失。
Distributed neural processing creates a binding problem: the representations of the various features of an object are distributed across brain areas but must be associated with, or bound to, the same object. Here we determine the limits that binding imposes on the perception of global form in static flow fields defined by oriented dot pairs. The binding of local orientation signals into global form is shown to operate at rapid 20-Hz rates, implying that visual signals at the point of global form extraction retain precise temporal registration. Binding global form with color is limited to rates of 3-5Hz, showing that binding across attributes can impose a severe temporal limit on perception. Judgment of the temporal sequence of the global structures is also limited to slow rates. These results point to a substantial loss of temporal resolution in the visual system following the extraction of global form but preceding visual awareness.
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