I think it is possible for a person to change personality when he/she gets too attached on technology?
I'm a gamer and I prefer violent gore games when playing on my computer, I think that affected that way I speak and treat others in a more aggressive way and IT's really not a nice change.
That is possible because what we do now will determine who you will be in the future. The same goes for what you use now will affect on how you become in the future. If you are always sitting and playing/watching in your smartphone, you won't have time to exercise and will result to obesity. You have to always consider moderation in everything.