Here is the full list of all 19 Infliction: Extended Cut achievements worth 1,000 gamerscore.
Received punishment from one of the Inspirations in Hell
Finished the Game
Exorcised yourself once possessed
Killed the ghost with shock therapy
Trapped Crave behind the roller door
Found the crucifix hanging in the tree
Found hell inside the elevator
Found the person trapped in the vending machine
Discovered the two memories during the hallway riddle
Entered the mirror world
Watched the cooking show during 1999.
Find all the memories in 1999.
Examine the hole in the basement wall
Solve the hallway riddle in the first two tries
Take a photo in the police line-up room
Watch the TV show once you've set the host free
Take four photos capturing the ghost hiding
Kill the ghost during the 1980's
Find every memory