The eerie similarity between LLMs and brains with a severed corpus callosum

In the 1960s and 70s, Sperry and Gazzaniga ran experiments on patients who had undergone a severance of the corpus callosum as a treatment for epilepsy. The procedure created two largely independent cognitive systems sharing one skull. In a healthy brain, the corpus callosum transfers information between hemispheres almost instantaneously. But in these patients, researchers could flash a word to one hemisphere only, and the other would genuinely have no access to it. The speech center sits in the left hemisphere.