Before revision: Statistical modeling techniques, such as projection pursuit regression (PPR) and convolutional neural network (CNN)approaches, provide state-of-the-art performance in characterizing visual cortical neurons' receptive fields and predicting their responses to arbitrary input stimuli.
After revision: System identification techniques---projection pursuit regression models (PPR) and convolutional neural network (CNN)approaches, provide state-of-the-art performance in characterizing visual cortical neurons' receptive fields and predicting their responses to arbitrary input stimuli.