Here is why 👇 This isn’t just a finger trick, it’s testing your brain’s motor cortex, coordination pathways, and how well different parts of your brain communicate with each other 🧠 Movements like this require: • Fine motor control (motor cortex) • Brain-body coordination (cerebellum) • Communication between brain hemispheres (corpus callosum) When one finger moves while others stay still, your brain has to activate some muscles while inhibiting others at the same time…which is actually pretty