
dlvr.itDiversity in the impact of heterogeneities on recurrent networks performing a cognitive taskNo two neurons in the brain are identical. In this study, Santhosh and Narayanan show that differences between neurons affect learning, task performance, activity patterns, and resistance to disruption in highly varied ways. Using many recurrent neural networks trained on the same cognitive task, they found that the effects depended on network hyperparameters, the amount and type of variation, and how performance was measured. Their results highlight the importance of studying neural networks as complete, interacting systems across many examples, rather than focusing on individual differences in isolation.