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, Elmyra & the Brain sitcom "more like "The Simpsons"". In a press release, Warner Bros. stated that the new series was "a fresh approach to popular favorites as Pinky & The Brain move from ACME Labs to America's suburbs when they are adopted by the extremely excitable Elmyra." The idea was reportedly met with resistance from the producers of the series. The apparent dissatisfaction with Warner Bros.' decision to change "Pinky and the Brain" showed up in episodes. The last script that producer Peter Hastings wrote before leaving Warner Bros. for Disney was the episode "You'll Never Eat Food Pellets in This Town Again",