According to the tenets of Vodou, a dead person can be revived by a bokor, or sorcerer. Zombies remain under the control of the bokor since they have no will of their own.
Modern zombies, as portrayed in books, films, games, and haunted attractions, are different from both voodoo zombies and those of folklore. Modern zombies are typically depicted in popular culture as mindless, unfeeling monsters with a hunger for human flesh, a prototype established in the seminal 1968 film Night of the Living Dead. Typically, these creatures can sustain damage far beyond that of a normal, living human. Generally these can only be killed by a wound to the head, such as a headshot, and can pass whatever syndrome that causes their condition onto others.
Usually, zombies are not depicted as thralls to masters, as in the film White Zombie or the spirit-cult myths. Rather, modern zombies are depicted in mobs and waves, seeking either flesh to eat or people to kill, and are typically rendered to exhibit signs of physical decomposition such as rotting flesh, discolored eyes, and open wounds, and moving with a slow, shambling gait. They are generally incapable of communication and show no signs of personality or rationality, though George Romero's zombies appear capable of learning and very basic levels of speech as seen in the films Day of the Dead and Land of the Dead.
Modern zombies are closely tied to the idea of a zombie apocalypse, the collapse of civilization caused by a vast plague of undead. The ideas are now so strongly linked that zombies are rarely depicted within any other context.