One Head, Two Brains: The origins of split-brain research (2015) — https://www.theatlantic.com/health/archive/2015/07/split-brain-research-sperry-gazzaniga/399290/
#HackerNews #Neuroscience #SplitBrain #Research #History #BrainStudy

Severance: the real cognitive neuroscience behind the Apple TV+ show’s ‘severance procedure’
https://theconversation.com/severance-the-real-cognitive-neuroscience-behind-the-apple-tv-shows-severance-procedure-246853
#Neuroscience
#SplitBrain

I have been reading about #splitBrain today and honestly it shook my entire definition of consciousness and possibly other things because it's mind blowing interesting and sad in the same time. imagine being shown a picture through your left eye that instructs you to draw a smilyface. Then your left hand automatically goes to draw that, but then when asked why you drew it you just say: " because nobody wants a sad face." You clearly know you drew that because you were instructed to yet you just cannot say that out loud. The reason you can't just say "I drew it because of the picture," is because the left half of your brain, the one that controls your right side and your speech, didn't see the picture. So it's like, your left hemisphere is just trying to come up with a reason that makes sense based on what it can see. But the right hemisphere, , which cannot control speech knows the real reason why you drew the smiley face, because it controls the left side of your body so it did see the picture instructing you to draw. Or imagine grabbing something with your right hand just for your left hand to literally slap it off your right hand and pick something else. It's like having two brains in charge of different things in your body that sometimes disagree with each other. This happens when the "communication cables", that allow the left and right hemispheres to communicate with each other and coordinate stuff and function as one entity, are damaged or cut. At the end of this text I will link to a great page explaining all of that better than I could ever do. https://www.nature.com/articles/483260a