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. 2008 Feb;48(5):703-15.
doi: 10.1016/j.visres.2007.11.025. Epub 2008 Jan 28.

The roles of visual expertise and visual input in the face inversion effect: behavioral and neurocomputational evidence

Affiliations

The roles of visual expertise and visual input in the face inversion effect: behavioral and neurocomputational evidence

Joseph P McCleery et al. Vision Res. 2008 Feb.

Abstract

Research has shown that inverting faces significantly disrupts the processing of configural information, leading to a face inversion effect. We recently used a contextual priming technique to show that the presence or absence of the face inversion effect can be determined via the top-down activation of face versus non-face processing systems [Ge, L., Wang, Z., McCleery, J., & Lee, K. (2006). Activation of face expertise and the inversion effect. Psychological Science, 17(1), 12-16]. In the current study, we replicate these findings using the same technique but under different conditions. We then extend these findings through the application of a neural network model of face and Chinese character expertise systems. Results provide support for the hypothesis that a specialized face expertise system develops through extensive training of the visual system with upright faces, and that top-down mechanisms are capable of influencing when this face expertise system is engaged.

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Figures

Figure 1
Figure 1
Design of the Face and Character Conditions in Experiments 1a and 1b.
Figure 2
Figure 2
Mean Correct Response Latencies and standard errors for the Ambiguous Figures in the Face and Character Conditions of Experiment 1a (*: p<.05).
Figure 3
Figure 3
Mean accuracy (%) and standard errors of the mean for the Ambiguous Figures in Experiment 1b (*: p<.05).
Figure 4
Figure 4
Design of the Character Condition in Experiment 2.
Figure 5
Figure 5
Visual representation of the structure of the neurocomputational model.
Figure 6
Figure 6
Example training images (left) and test images (right) used in the neurocomputational modeling experiment.
Figure 7
Figure 7
Mean discriminability and standard errors of the mean for the Ambiguous igures in the Face and Character Conditions of neurocomputational modeling xperiment (*: p<.05)
Figure 8
Figure 8
Discriminability of upright and inverted Ambiguous Figures stimuli at the different stages of the neurocomputational model in the face and character conditions.

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