Term for “over stimulation”

Question

I'm looking for a certain word, usually being said about the current generation, something like attention deficit caused by over stimulation (like people don't want to wait for more than 30 seconds for a video, etc).

Update:
The word I was looking for was desensitized

Answer 1

Restive comes to mind: Unable to keep still or silent and becoming increasingly difficult to control.

Answer 2

Perhaps fractious would be what you are looking for. See meaning (2) here, or perhaps the other synonyms offered (particularly testy and captious).

Answer 3

The words you could use to describe the current generation:

1. restless
2. speeded-up
3. impatient
4. high-strung
5. on-edge

These are simple terms that you have probably thought of yourself.

Answer 4

If you don't mind a bit of slang, how about wired?

http://dictionary.reference.com/browse/wired