Adaptation aftereffects to facial expressions suppressed from visual awareness.
Adaptation aftereffects to facial expressions suppressed from visual awareness.
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DOI：
10.1167/10.12.24
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发表时间：
2010-10-22
影响因子：
1.8
通讯作者：
Blake R
中科院分区：
文献类型：
--
作者：
Yang E;Hong SW;Blake R
适应后效应的研究已被用作研究引起面部感知的神经事件的工具。最近的适应研究表明，面部处理不会在意识之外发生，因为当使用眼间抑制使适应面部在感知上不可见时，无法诱发特定于身份和性别的面部后遗症。然而，有大量证据表明，与身份和性别不同，面部表情是面部的一种属性，可以招募自动参与且独立于观察者意识和注意力的过程。因此，我们研究了在连续闪光抑制（CFS）下是否会出现特定于面部表情的适应后效应。我们的研究结果表明，当人们对面部表情的意识被抑制时，对面部表情的适应实际上就被消除了。此外，这种后效强度的损失不能完全归因于对比度适应，因为结果显示面部适应后感知对比度仅发生适度变化。当观察者内源性地关注被抑制的适应刺激的位置时，特定表达的后效应就会增强。我们的研究结果表明，指定面部表情情感信息的神经活动非常容易受到眼间抑制的破坏性影响，但注意力资源的分配可以部分抵消抑制的影响。
The study of adaptation aftereffects has been used as a tool to investigate the neural events that give rise to face perception. Recent adaptation studies suggest that face processing does not occur outside of awareness since identity- and gender-specific face aftereffects cannot be induced when the adapting face is rendered perceptually invisible using interocular suppression. However there is substantial evidence suggesting that facial expression, unlike identity and gender, is an attribute of faces that may recruit processes that are engaged automatically and independent of observers’ awareness and attention. Therefore we investigated whether adaptation aftereffects specific to facial expressions could arise under continuous flash suppression (CFS). Our results show that adaptation to facial expressions is virtually abolished, when faces are suppressed from awareness. Moreover, this loss in aftereffect strength cannot be attributed to contrast adaptation exclusively, since results show only modest changes in perceived contrast following face adaptation. When observers endogenously attend to the location of the suppressed adapting stimulus, expression-specific aftereffects are enhanced. Our findings suggest that neural activity specifying affective information of facial expressions is highly vulnerable to the disruptive effect of interocular suppression, but that allocation of attentional resources can partially counteract suppression’s effect.
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影响因子：
6.7
作者：
Lin, Zhicheng;He, Sheng
通讯作者：
He, Sheng
影响因子：
16.2
作者：
Moradi, F;Koch, C;Shimojo, S
通讯作者：
Shimojo, S
影响因子：
2.9
作者：
Fox, Christopher J.;Barton, Jason J. S.
通讯作者：
Barton, Jason J. S.
影响因子：
3.8
作者：
Ishai, A;Schmidt, CF;Boesiger, P
通讯作者：
Boesiger, P
DOI：
10.1093/cercor/bhn048
发表时间：
2009-01
期刊：
Cerebral cortex (New York, N.Y. : 1991)
影响因子：
--
作者：
Kouider S;Eger E;Dolan R;Henson RN
通讯作者：
Henson RN