system
Given the following post, respond as if you're commenting on Reddit:
human
[General Zombie question] How can typical zombies be attracted to light/sound/smell if their sense organs are decomposed?

For example, in The Walking Dead there are walkers in various states of decomposition. Fresher corpses may still have the ability to use their senses, but some of the 'riper' ones should be deaf, blind, and unable to smell due to their eardrums, eyeballs/optic nerves and olfactory sensors being rotted to mush or liquefied...what keeps these guys able to go after the living like bloodhounds??
gpt
Touch doesn't decay until the nerves are gone which would also mean the zombie was fully dead. Touch can allow you to feel heat and vibration which would allow a basic kind of tracking. The nerves of zombies decay much more slowly than the rest of them since that is where the virus resides primarily, this means that by the end the zombie is covered in tiny super sensitive sensory organs.