Psychic nullifier (Fallout)

A device placed on the head to disable or prevent a psyker from using his or her powers. A nullifier also blocks incoming telepathic attacks, such as those frequently experienced in the Corridor of Revulsion. The Vault Dweller can obtain one; doing this or taking the Mental Block Perk is almost a necessity for reaching The Master without succumbing to telepathic assault. Otherwise, on your way to the Master you'll take damage couple of times, as well as eye damage (your Perception falls to 1, which makes the upcoming battle quite tricky). The passage itself offers a very gruesome scene. It takes a bit of the player's own imagination, though, because it's pure text, but it's worth experiencing. If someone has written down that WHOLE scene, please post it here.