Concentration is the ability to focus one's attention on the task at hand and thereby not be distracted by irrelevant external or internal stimuli.
What is attention?
Attention is a brief and involuntary state of alertness or preparedness for action.
Two dimensions of attention
Width - The number of elements a person can focus on Directionality - The target of your attention
Types of Attention
Broad-external - Peripheral awareness and seen in ability to read the game and to scan the environment Broad-internal - Creative thinking and problem solving, used in addressing game tactics Narrow-external - Required at the moment the action is made and focused on a limited number of external sources of information Narrow-internal - Focus on awareness of thought, emotions or behaviour associated with self