This toolbox allows you to visualize what neural networks "see" at each layer, and what image patterns activate what sorts of neurons (and how). For example, in this video [1] you can see neurons that detect edges, faces, and text.<p>[1] <a href="https://www.youtube.com/watch?v=AgkfIQ4IGaM" rel="nofollow">https://www.youtube.com/watch?v=AgkfIQ4IGaM</a>