Interfering with dream manipulation

Hi Misa-San! I thought it might be better to correct just the first paragraph. Otherwise, there may be too many corrections to study. Please let me know if you have any questions about the edits.

You're writing about an interesting topic in very complex sentences. Please keep writing. You're doing great.

PS: I watched Paprika. I own a DVD copy. I really like it.

--Ken

Interfering with dream(s)

*1 Introduce the subject (the protagonist) in the first sentence;

"in that movie, not only does the protagonist visualize dreams, but -they- also go..."

I think analyzing dream is effective for mental therapy because dreams reflect their mental condition and may can*2 identify the cause of their mental disorder.

*2 "may can" is no good. instead write;

"and may be able to identify.."

Now I am wondering if interfering with dream is possible. I think at least 4 technologies are needed to realize it.
1: visualize dream
2: construct the world that he/she dreaming in the computer.
3: observer goes into the world and make an avatar.
4: Input the information to (the) dreaming person's brain.
There are many research*3 about each step.

*3 'research' is a word like 'money'. you cant quantify research. therefore, you cant use -many- but instead -a lot of-;

"There is a lot of research about each step"

2 and 3 seem possible because there are already many games using virtual reality and its quality pretty high. For 1 and 4, there are many interesting studies. Researchers are trying to visualize what he/she is looking at using electrical activity or fMRI data obtained from (their) brain. Development of this kind of studies is rapid. The resolution is still not good, but enough to identify alphabets. 4 maybe the most difficult part. Researches are trying to
input information directory or via bionic eye into brain but got*4 limited success.

*4 -are trying to- is progressive/current. -got- is past tense. change -got- to -get-

Direct input using catheter or electrodes are (is; here, you use singular, because it refers to "the direct input", and not the methods) invasive and (only) limited information can be transmitted. Bionic eye(s) seems far away from (being at a) practical level. Input is much more difficult than output.
If we could clear these steps, what would happen in the brain? Will (the) original dream and input dream conflict?

By the way Paprika is a nice movie. (the) Boundary of reality and dream will become ambiguous. Your brain will be stirred with vivid colors and madness of dream.

And the music by Susumu is incredible, too!

very well written. pay attention to plurals, and "the". just a few minor things here and there. if you keep at it, you will definitely be able to write flawlessly,  just keep learning all those little things