If attention is the capacity to select what amongst all competing current mental events which one becomes and remains the focus of your cognitive resources, then attention deficit is the difficulty to resist the pull of whatever speaks loudest - and attention excess is the opposite difficulty of letting go of your internal focus in favor of that external, loud one.
No, this is not a standard diagnosis - but it should be
There is no such thing as Attention Excess Disorder in the DSM-V, the current version of the manual used to diagnose health issues in a manner that physicians all over the world can understand each other. Attention disorders are traditionally recognized
