Living with Two Brains — Life Without Your Corpus Callosum
<p>Millions of interactions and cell-to-cell signals occur between you picking up a mug and saying its name. Nervous input zooms up your left arm and into your spinal cord. This flies to your brain, crossing over to the right side of your cerebral cortex, where you can imagine the shapes, curves, and size and come up with an idea of what the object is. Along the way, electrical signals from every receptor in your hand pass through three different neurons, and terminate in your primary sensory cortex, on the upper right side of your brain. This is the simple part. Next, these signals are passed to memory circuits, through modulating relays, and into deep hippocampal regions as your brain searches for other objects that have felt similar. Eventually, it settles on a mug and gives you the image in your head. This process is called stereognosis, and your brain goes through it anytime you touch something you can’t see. It searches through millions of patterns to identify that one that matches with the object you’re holding.</p>
<p><a href="https://medium.com/know-your-body/living-with-two-brains-life-without-your-corpus-callosum-50d982f2596f"><strong>Learn More</strong></a></p>