Scientists have recently identified a unique form of cell messaging occurring in the human brain that's not been seen before.
Excitingly, the discovery hints that our brains might be even more powerful units of computation than we realized.
By measuring the electrical activity in sections of tissue removed during surgery on epileptic patients and analyzing their structure using fluorescent microscopy, the neurologists found individual cells in the cortex used not just the usual sodium ions to 'fire', but calcium as well. In neurons, the signal is in the form of a wave of opening and closing channels that exchange charged particles such as sodium, chloride, and potassium. This pulse of flowing ions is called anInstead of transistors, neurons manage these messages chemically at the end of branches called dendrites.
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