When attention becomes so focused that people are aware only of the narrow range of perception related to the immediate task, they are experiencing . Empathy Hypomania Flow

Flow

Explanation:

In psychological term, Flow refers to a situation when our brain reach optimal state of focus that massively optimize our capability to perform a certain task. When this happen, our brain tend to ignore our surrounding and our attention is completely focus on one single thing that we're working on.

Example for this would be a writer who so immerse in her fantasy to the point where she write her story for 20-hours straight, forgetting the fact that she hasn't eat for the whole day.

the united states has a federal government. the president is the head of the federal government of the united states. however, each state forms its government for administration purposes. the powers of the state governments are exercised within restricted state boundaries. and citizens participate in this government by voting.