Neural Prediction Errors as a Unified Cue for Abstract Visual Reasoning.

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Humans exhibit remarkable abilities in recognizing relationships and performing complex reasoning. In contrast, deep neural networks have long been critiqued for their limitations in abstract visual reasoning (AVR), a key challenge in achieving artificial general intelligence. Drawing on the well-known concept of prediction errors from neuroscience, we propose that prediction errors can serve as a unified mechanism for both supervised and self-supervised learning in AVR. In our novel supervised learning model, AVR is framed as a prediction-and-matching process, where the central component is the discrepancy (i.e., prediction error) between a predicted feature based on abstract rules and candidate features within a reasoning context. In the self-supervised model, prediction errors as a key component unify the learning and inference processes. Both supervised and self-supervised prediction-based models achieve state-of-the-art performance on a broad range of AVR datasets and task conditions. Most notably, hierarchical prediction errors in the supervised model automatically decrease during training, an emergent phenomenon closely resembling the decrease of dopamine signals observed in biological learning. These findings underscore the critical role of prediction errors in AVR and highlight the potential of leveraging neuroscience theories to advance computational models for high-level cognition in artificial intelligence.