rtb001 t1_itpyez3 wrote on October 25, 2022 at 1:34 PM

Reply to comment by Dr_Vanc_Zosyn in If each side of our body is controlled by the opposite brain hemisphere, how do we blink in sync? by killians1978

Many signals cross the midline all over the brain.

The corpus callosum is literally the largest fiber tract in the nervous system, and its job is to link the two cerebral hermitage hemispheres so they can communicate with each other.

But as the fascinating split brain experiments have shown, even if you completely sever the callosum in a fully developed adult brain, it still requires specific conditions to show that the hemispheres are acting much more independently than normal.

stoicsticks t1_itqitib wrote on October 25, 2022 at 3:53 PM

I knew a teen who had brain cancer and had the two halves of his brain severed. He couldn't describe the texture of something as smooth or fuzzy unless he physically touched the item. Only then could he say what it was like.