Post-Stroke Cortical Remapping Simulator

After an ischemic stroke destroys part of the primary motor cortex, the hand representation doesn't just vanish — surviving peri-infarct tissue can partially take over the lost function through activity-dependent (Hebbian) synaptic plasticity, provided rehabilitation supplies enough repetitions. This simulator renders a grid of cortical neurons as an instanced 3D mesh, lets you detonate an infarct of chosen size, and then drives a Hebbian recruitment model day by day under a training-intensity and plasticity-rate you control, so you can watch — and read out numerically — how much of the hand's motor map is rebuilt versus how much stays a permanent, silent lesion.