Size-contrast illusion induced by unconscious context
Size-contrast illusion induced by unconscious context
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DOI：
10.1167/18.3.16
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发表时间：
2018-03-01
影响因子：
1.8
通讯作者：
Sugita, Yoichi
中科院分区：
文献类型：
--
作者：
Nakashima, Yusuke;Sugita, Yoichi
这项研究调查了艾宾浩斯错觉是否可以由周围环境诱导，这些环境被抑制在有意识的知觉中。我们使用了持续的闪光抑制来使情境刺激看不见。将周围环境呈现给一只眼睛，将掩蔽刺激呈现给另一只眼睛，然后将两个中心测试刺激呈现给两只眼睛。即使在诱导物不可见的情况下，也能观察到虚幻的尺寸效应，尽管这种效应很弱--大约是可见背景下的强度的三分之一。随着诱导器和测试刺激之间的刺激间隔的增加，可见和不可见环境所引起的影响以相同的速度衰减。此外，当意识中的诱导物被抑制时，幻觉大小效应的眼间转移不会发生。这些结果表明，Ebbinghaus错觉的大小-对比度效应在V1中起中介作用，而V1中的单眼通路参与无意识效应。
The present study examined whether the Ebbinghaus illusion can be induced by surrounding contexts that are suppressed from conscious perception. We employed continuous flash suppression to render the contextual stimuli invisible. The surrounding contexts were presented to one eye and the masking stimulus was presented to the other eye, followed by the presentation of the two center test stimuli to both eyes. The illusory size effect was observed even when the inducers were rendered invisible, although the effect was weak-approximately one third the strength of that induced by visible contexts. The effects induced by both visible and invisible contexts decayed with equal speed as the interstimulus interval between the inducer and test stimuli increased. Moreover, interocular transfer of illusory size effect did not occur when the inducers were suppressed from awareness. These results suggest that the size-contrast effect in the Ebbinghaus illusion is mediated in V1, and the monocular pathway in V1 is involved in the unconscious effect.