There are at least 2 artist using that name:
One being an electronica related artist, the more famous "rock"-band however is described below:
Not unlike some other guitar-centered power trios, Attention Deficit delivers a very energetic jazz rock, including flashes of fiery psychedelia and getting pretty wicked at times. This supergroup’s particular value relies on the special touch delivered by each individual member.

Read more about Attention Deficit on Last.fm.