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首页> 外文期刊>Current Biology: CB >Inversion leads to quantitative, not qualitative, changes in face processing
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Inversion leads to quantitative, not qualitative, changes in face processing

机译：反转会导致面部处理发生定量而非定性的变化

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摘要

Humans are remarkably adept at recognizing objects across a wide range of views. A notable exception to this general rule is that turning a face upside down makes it particularly difficult to recognize [1-3]. This striking effect has prompted speculation that inversion qualitatively changes the way faces are processed. Researchers commonly assume that configural cues strongly influence the recognition of upright, but not inverted, faces [3-5]. Indeed, the assumption is so well accepted that the inversion effect itself has been taken as a hallmark of qualitative processing differences [6]. Here, we took a novel approach to understand the inversion effect. We used response classification [7-10] to obtain a direct view of the perceptual strategies underlying face discrimination and to determine whether orientation effects can be explained by differential contributions of nonlinear processes. Inversion significantly impaired performance in our face discrimination task. However, surprisingly, observers utilized similar, local regions of faces for discrimination in both upright and inverted face conditions, and the relative contributions of nonlinear mechanisms to performance were similar across orientations. Our results suggest that upright and inverted face processing differ quantitatively, not qualitatively; information is extracted more efficiently from upright faces, perhaps as a by-product of orientation-dependent expertise.
机译：人类非常擅长于从多种视角识别物体。此一般规则的一个显着例外是，将脸朝下翻转会使识别变得特别困难[1-3]。这种惊人的效果促使人们推测，反演从质上改变了处理面孔的方式。研究人员通常认为，构造线索会强烈影响直立的面孔（而不是倒立的面孔）的识别[3-5]。的确，这种假设已被很好地接受，以至于反演效应本身已被视为定性处理差异的标志[6]。在这里，我们采用一种新颖的方法来了解反演效果。我们使用响应分类[7-10]来获得人脸识别背后的感知策略的直接视图，并确定定向效果是否可以由非线性过程的不同贡献来解释。倒置会严重损害我们面部识别任务的性能。然而，令人惊讶的是，观察者利用相似的局部面部区域在直立和倒立面部条件下进行辨别，并且非线性机制对性能的相对贡献在各个方向上都相似。我们的结果表明，正立和倒立面部处理在数量上而不是质量上有所不同。可以从直立的面孔中更有效地提取信息，这可能是与方向相关的专业知识的副产品。

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