Here is the full list of all 15 Sensorium achievements.
Complete the entry area
Complete the touch area
Complete the taste area
Complete the sight area
Complete the hearing area
Complete the smell area
Complete the final area
Solve the puzzle behind a closed door
Beat the smell area in 45 seconds
Play "Twinkle Twinkle Little Star" on the piano
Make a cat instead of a cake
Find the logic gate research room
Climb to the top of the power hub
Open the toggle chamber
Open the timer chamber