Alertness - Maintain vigilance and change focus when needed in response to an event.
Attention - Shift your attention at will, be aware of your actions, complete the task at hand.
Concentration - Focus for longer time periods - with fewer breaks - in order to accomplish more at work, home and school.
Focus - Ignore unwanted interruptions, block distractions, receive and process more information.
Selective attention - Analyze information, make a choice, focus on a desired outcome and block environmental distractions until the result is achieved.
