Perceptual alternation induced by visual transients
Perceptual alternation induced by visual transients
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DOI：
10.1068/p5245
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发表时间：
2005-01-01
期刊：
影响因子：
1.7
通讯作者：
Verstraten, FAJ
中科院分区：
文献类型：
--
作者：
Kanai, R;Moradi, F;Verstraten, FAJ
当我们的视觉系统面对模糊的刺激时，感知解释会自发地在相互竞争的不相容解释之间交替。这种知觉交替的时间是高度随机的，并且对潜在的神经机制知之甚少。我们发现，感知的交替可以引发附近的一个短暂的刺激诱导进行了测试，四种类型的刺激：结构从运动，双目竞争，内克尔立方体，和模糊的明显的运动。虽然潜在的机制可能会有所不同，在所有情况下，一个短暂的闪光引起的时间锁定的感知交替。该效果显示出依赖于适应的主导的记忆体之前，介绍了一个闪光。这些知觉交替显示出与由瞬时刺激引起的知觉消失的许多相似之处（Kanai和Karnitam，2003 Journal of Cognitive Neuroscience 15 664 - 672; Moradi和Shimojo，2004 Vision Research 44 449 - 460）。连接这两个瞬态引起的现象的机制进行了讨论。
When our visual system is confronted with ambiguous stimuli, the perceptual interpretation spontaneously alternates between the competing incompatible interpretations. The timing of such perceptual alternations is highly stochastic and the underlying neural mechanisms are poorly understood. We show that perceptual alternations can be triggered by a transient stimulus presented nearby The induction was tested for four types of bistable stimuli: structure-from-motion, binocular rivalry, Necker cube, and ambiguous apparent motion. While underlying mechanisms may vary among them, a transient flash induced time-locked perceptual alternations in all cases. The effect showed a dependence on the adaptation to the dominant percept prior to the presentation of a flash. These perceptual alternations show many similarities to perceptual disappearances induced by transient stimuli (Kanai and Karnitam, 2003 Journal of Cognitive Neuroscience 15 664 - 672; Moradi and Shimojo, 2004 Vision Research 44 449 - 460). Mechanisms linking these two transient-induced phenomena are discussed.