Information flows through the brain via an electrochemical process where electrical impulses trigger chemical releases across synapses, which then create new electrical impulses in downstream cells.

“so the the electricity triggers release of a chemical the chemical drifts across this tiny little gap that's some tens of nanometers and then it acts on receptors in the other side the post synaptic side and and that creates a new burst of electricity in that downstream cell so that's the electrochemical process of information flow”