How do you think your cognitive dev has changed?
I don't know for sure, but I think my Si has diminished over time. When it comes to subjects I know a lot about, I have a storehouse of info to back it up (I can draw a map of my town from memory, and remember everyone in my family's birthday), but I've been memorizing less facts in recent years.
But for sure, my Fi is my third most developed function, and Ne is my fourth.
My Ti has also become much less harsh than it used to be.
What shaped or influenced these changes?
Si- I used to spend a lot of time creating my own worlds in the form of maps and landscapes, and would create imaginary people with birthdays, personalities, and families. All of the facts associated with these things were stored in my memory, and I could recall the details easily. But once I started spending more time on school work and less on my own pursuits, my thirst for new ideas to feed my curiosity pushed my need to memorize facts into oblivion (with a few residual exceptions). I eventually realized that my Ni was allowing me to pull general ideas out of nowhere, and my Ti made those ideas specific enough that I had no need for rote memorization.
Ne/Fi- There are a few prominent INFP's in my life, and my striving to understand them helped me develop my Fi. As for Ne, it's usage comes and goes.
Ti- I've said too many thing I wish I hadn't using too much Ti, but I'm still somewhat of an obssessive person.
How does this affect your everyday approach to people and communication?
I'm able to couple my Fe with Fi, which allows me to not be as cold seeming as I used to be. I'm also more friendly and sociable, and it's easier for me to relate to people and understand possibilities.