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Creators/Authors contains: "Saxe, Rebecca"

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  1. ; ; ; ; (, Trends in Cognitive Sciences)
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  2. ; ; ; (, Brain Sciences)
    Recent neuroimaging evidence challenges the classical view that face identity and facial expression are processed by segregated neural pathways, showing that information about identity and expression are encoded within common brain regions. This article tests the hypothesis that integrated representations of identity and expression arise spontaneously within deep neural networks. A subset of the CelebA dataset is used to train a deep convolutional neural network (DCNN) to label face identity (chance = 0.06%, accuracy = 26.5%), and the FER2013 dataset is used to train a DCNN to label facial expression (chance = 14.2%, accuracy = 63.5%). The identity-trained and expression-trained networks each successfully transfer to labeling both face identity and facial expression on the Karolinska Directed Emotional Faces dataset. This study demonstrates that DCNNs trained to recognize face identity and DCNNs trained to recognize facial expression spontaneously develop representations of facial expression and face identity, respectively. Furthermore, a congruence coefficient analysis reveals that features distinguishing between identities and features distinguishing between expressions become increasingly orthogonal from layer to layer, suggesting that deep neural networks disentangle representational subspaces corresponding to different sources. 
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  3. ; ; ; (, Conference on Cognitive Computational Neuroscience)
    Recent neural evidence challenges the traditional view that face identity and facial expressions are processed by segregated neural pathways, showing that information about identity and expression are encoded within common brain regions. This article tests the hypothesis that integrated representations of identity and expression arise naturally within neural networks. Deep networks trained to recognize expression and deep networks trained to recognize identity spontaneously develop representations of identity and expression, respectively. These findings serve as a “proof-of-concept” that it is not necessary to discard task-irrelevant information for identity and expression recognition. 
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