Head direction cells efference copy") preparing the network for an impending head turn. HD cells continue to fire in an organized manner during sleep, as if animals were awake. However, instead of always pointing toward the same direction—the animals are asleep and thus immobile—the neuronal "compass needle" moves constantly. In particular, during rapid eye movement sleep, a brain state rich in dreaming activity in humans and whose electrical activity is virtually indistinguishable from the waking brain, this directional signal moves as if the animal is awake: that is, HD neurons are sequentially activated, and the individual neurons representing a common direction during wake
Pinky and the Brain (voiced by Maurice LaMarche). In "What Ever Happened to Baby Brain", Brain actually crosses paths, who is working as a busboy in a hollywood restaurant, they find themselves inadvertently yelling in unison, "Things will be different when I take over the world!" In "Project B.R.A.I.N." Brain's name is the backronym for the eponymous project: "Biological Recombinant Algorithmic Intelligence Nexus". His tail is angular and bent —he often uses it to pick the lock of the cage—and his head is large and wide, housing his abnormally large brain. He is highly intelligent and develops complex plans for global domination using politics,