When noise is beneficial for sensory encoding: Noise adaptation can improve face processing
When noise is beneficial for sensory encoding: Noise adaptation can improve face processing
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当噪声有利于感官编码时：噪声适应可以改善面部处理
DOI：
10.1016/j.bandc.2017.06.006
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发表时间：
2017
影响因子：
2.5
通讯作者：
Kovács
中科院分区：
文献类型：
--
作者：
Menzel;Hayn-Leichsenring;Redies;Nemeth;Kovács
噪音的存在通常会妨碍对刺激的处理。在此，我们研究了噪声对人脸加工的影响，并首次证明了对噪声模式的适应对人脸感知有有益的影响。我们使用无噪声的面孔，这些面孔要么被随机噪声包围，要么被呈现在统一的背景上作为刺激。此外，这些面之前要么有噪声适配器，要么没有。此外，我们改变了噪声的统计数据，使其光谱斜率要么与人脸的斜率相匹配，要么更陡或更浅。平行ERP记录结果显示，背景噪声降低了人脸诱发的N170振幅，表明人脸处理强度降低。然而，对噪声模式的适应导致P1降低，N170振幅增强，并且在三种噪声条件中的两种条件下具有更好的行为表现。目标刺激物周围存在的背景噪声也增强了这种效应。此外，噪声模式的谱斜率影响P1、N170和P2幅值的大小。我们认为，观察到的效果是由于存在于面部处理皮层区域的噪声敏感神经元的选择性适应，这可能会提高信噪比。
The presence of noise usually impairs the processing of a stimulus. Here, we studied the effects of noise on face processing and show, for the first time, that adaptation to noise patterns has beneficial effects on face perception. We used noiseless faces that were either surrounded by random noise or presented on a uniform background as stimuli. In addition, the faces were either preceded by noise adaptors or not. Moreover, we varied the statistics of the noise so that its spectral slope either matched that of the faces or it was steeper or shallower. Results of parallel ERP recordings showed that the background noise reduces the amplitude of the face-evoked N170, indicating less intensive face processing. Adaptation to a noise pattern, however, led to reduced P1 and enhanced N170 amplitudes as well as to a better behavioral performance in two of the three noise conditions. This effect was also augmented by the presence of background noise around the target stimuli. Additionally, the spectral slope of the noise pattern affected the size of the P1, N170 and P2 amplitudes. We reason that the observed effects are due to the selective adaptation of noise-sensitive neurons present in the face-processing cortical areas, which may enhance the signal-to-noise-ratio.
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影响因子：
3.7
作者：
Koch M;Denzler J;Redies C
通讯作者：
Redies C
注意力如何从噪音中提取物体。
影响因子：
2.5
作者：
Pratte,MichaelS;Ling,Sam;Swisher,JaschaD;Tong,Frank
通讯作者：
Tong,Frank
添加的噪声对直立脸和倒立脸的神经关联的影响不同。
影响因子：
1.8
作者：
Schneider,BethanyL;DeLong,JordanE;Busey,ThomasA
通讯作者：
Busey,ThomasA
影响因子：
3.7
作者：
Németh K;Zimmer M;Schweinberger SR;Vakli P;Kovács G
通讯作者：
Kovács G
影响因子：
3.7
作者：
Menzel C;Hayn-Leichsenring GU;Langner O;Wiese H;Redies C
通讯作者：
Redies C