The Brain Capturing a Thought In the brain, as in the rest of the nervous system, information is transmitted by electrical impulses that speed from one neuron to the next (Kim & others, 2012). In this striking image, you can clearly see the synaptic connections (bright yellow dots) between the axons of the presynaptic or “sending” neurons (blue) and the dendrites of the postsynaptic or “receiving” neurons (red).
Courtesy of Jinhyun Kim