Most neural networks don’t have anything comparable to specialised brain areas, at least structurally, so you can’t see which areas light up given some stimulus to determine what that part does. You can do it with individual neurons or channels, though. The best UI I know of to explore this is the “Dataset Samples” option in the OpenAI Microscope, that shows which inputs activate each unit.
Most neural networks don’t have anything comparable to specialised brain areas, at least structurally, so you can’t see which areas light up given some stimulus to determine what that part does. You can do it with individual neurons or channels, though. The best UI I know of to explore this is the “Dataset Samples” option in the OpenAI Microscope, that shows which inputs activate each unit.