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Phineas Gage (IIT Reading)
The 1848 <em>injury</em> that destroyed part of Gage's prefrontal cortex and — in Tononi's reading — reveals that architecture of integration, not merely functional modules, is what consciousness consists of.
On September 13, 1848, railroad foreman Phineas Gage was tamping a blasting charge when the iron rod he was using was propelled through his skull, entering below his left cheekbone and exiting through the top of his head, destroying much of his left prefrontal cortex. Gage survived and lived another twelve years, but his personality was reportedly transformed — the responsible foreman became impulsive, profane, unable to plan. The case became foundational for neuroscience of localization. Tononi reads it differently: what was destroyed was not merely a function but a specific structure of information integration, and Gage's diminished integration corresponded to a diminished dimension of consciousness.
In The You On AI Field Guide
The standard neurological reading of Gage's case treats it as evidence for functional localization: the prefrontal cortex subserves executive function, and damage to it produces deficits in planning, impulse control, and social judgment. This reading is correct as far as it goes. But it treats the brain as a collection of modules