Each cell sends electrical pulses to other cells, up to hundreds of times per second. If you represented each of these trillions and trillions of pulses in your brain by a single photon of light, the combined output would be blinding.
David EaglemanMots clés brain-cells
We are astoundingly poor observers. And our introspection is useless on these issues: we believe we´re seeing the world just fine until it´s called to our attention that we are not. We will go through a process of learning to observe our experience, just as Mach carefully observed the shading of the strips.
David EaglemanOur reality depends on what our biology is up to.
David EaglemanIf an epileptic seizure is focused in a particular sweet spot in the temporal lobe, a person won´t have motor seizures, but instead something more subtle. The effect is something like a cognitive seizure, marked by changes of personality, hyperreligiosity (an obsession with religion and feelings of religious certainity), hypergraphia (extensive writing on a subject, usually about religion), the false sense of an external presence, and, often, the hearing voices that are attributed to a god. Some fraction of history´s prophets, martyrs, and leaders appear to have had temporal lobe epilepsy.
When the brain activity is kindled in the right spot, people hear voices. If a physician prescribes an anti-epileptic medication, the seizures go away and the voices disappear. Our reality depends on what our biology is up to.
Mots clés brain prophet epilepsy
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