If you get stuck, here are hints and solutions to all the puzzles.
WARNING this contains many spoilers.

This room is linear meaning one puzzle leads to the next.

Entry room:
1: You should follow the texts on the screen and in the welcome letter
2: Choose one toy and drop it in the box below them
Solution: Grab the keycard from the now open locker and use it on the reader beside the door

Calibrate Left Brain:
1: There is a calibration area with colored brain icons
2: The button with the green brain will open the decoder for the left brain puzzle
3: Remember the code is 4 colors marked highest to lowest…
Solution: The answer is yellow, blue, red, green. push this on the colored buttons under the left screen and the drawer below will open.

Initiate left brain test:
1: There is a brian icon on the ubs key you now have
2: Have you seen a brain icon anywhere near the chair?
Solution: Place the USB key in the slot below the left armrest on the chair and click on the now active helmet to start the test

Left brain test:
1: You should pickup the 6 pieces of furniture and place them correctly
2: The board says “Starting from the door”
Solution: From the door place the furniture along the line (arrows) as follows; Shelf, Horse, Dresser, Bookcase, Table, Bed. Now exit the room

Calibrate Right Brain:
1: There is a calibration area with colored brain icons
2: The button with the purple brain will open the decoder for the right brain puzzle
Solution: The answer is red, green, blue, purple, yellow. push this on the colored buttons under the right screen and the drawer below will open.

Initiate right brain test:
1: There is a brian icon on the ubs key you now have
2: Have you seen a brain icon anywhere near the chair?
Solution: Place the USB key in the slot below the left armrest on the chair and click on the now active helmet to start the test

Right Brain Test:
1: You can use the yellow paint to change the white bucket on the floor.
2: When you place a color, things in the room change. Yo cannot combine yellow and red, but must use white between them
3: You can combine blue and red to get purple. Also combine yellow and blue to get green,
Solution: Use the yellow paint in the bucket to open the bookcase cabinets. Notice how the yellow blocks are placed on the shelf.. Then use red to open the red chest and get blue. Then use blue to get the green key in the bookcase cabinets. Then combine blue and yellow to open the green chest behind the chair. Then combine blue and red to get purple and place the purple blocks the same way the yellow blocks were placed.

Getting to the quantum drives.:
1: Have you noticed many things have manifested around the chair? PErhaps some can be used.
2: When you stand on the pressure plate in the secure zone, the cabinets under the screen open.
Solution: Drag the rocking horse to stand on the pressure plate, so you can get to the cabinets

Upgrading the chair with quantum drives:
1: You now have a new researcher keycard from the cabinets below the screen
2: Use the keycard to open the door and get to the 6 quantum drives and to open the back of the chair with the card reader on top of the chair back.
Solution: The quantum drives needs to be placed left to right: 1,6 (=7),2,5 (=7),3,4(=7)

Initiating deep memory test:
1: You can now press the blue brain button.
2: Have you seen a blue brain icon anywhere before? Near the screen…
Solution: Under the keyboard a hatch has opened with a deep memory USB key to use in the chair and click the helmet to start. (remove old keys first)

Deep memory paintings (VERY hard puzzle!):
1: You can combine the fruit pictures with the colored frames
2: The colors were visible in the Right Brain Test (you can still go back to that room).
3: The fruits are alphabetical somehow.
5: The fruits correspond to the ABCD paintings in the Left Brain Test (a= apple, B=banana, C=cherry, D=Dragonfruit.
Solution: Over the horse = red with apple. Over the dresser = Yellow with dragon fruit. Over the shelves = Blue with bananas. Over the bed = Green with cherry

Open the toy chest:
1: The colors correspond to the frames
2: The numbers must be something on the paintings.
Solution: Green = 2 cherries. Blue = 3 bananas. Yellow = 3 dragon fruits. Red = 1 apple

Spelling with the blocks:
1: The blocks can only spell a 4 letter word at the end of the shelf sentence.
2: What toy was your favorite?.
Solution: Write the name of the toy you chose at the beginning. SHIP or BALL or CUBE.

Activate the mind sphere:
1: You need to insert the perfect manifested object in the slot next to the main screen.
2: The toy appeared in your memory, but where do the objects manifest?.
Solution: The toy you have manifested is now on the shelf in the room with the chair. place it in the container on the desk with the screen..

Please let me know if you need more hints or still get stuck anywhere.