Just a simple quick animation that I made on Lightwave.
How I made it:
-Basic neuron free model that I found on the internet.
-Cloned the model several times to fill the scene.
-Manually animated the camera on a straight line with rotation on one of the axis.
-Spot lights with lens and glow added on. Spot lights were animated to quickly spin on their axis, thus giving the illusion the neurons are firing electricity.
-Materials were basic: turbulent noise added on color channel with a similar bumpy texture, and that was it. Nothing complex.
Feel free to ask guidance if you are wanting to re-create a similar scene.
Rendered in less than 10 minutes at HD resolutions.