Concentration levels refer to how much attention and mental effort one devotes towards a particular task or activity. It can vary from high levels where one is fully engaged and absorbed in an activity, to low levels where attention may wander or become easily disrupted.
Related terms
Cognitive Load: The amount of mental effort required to complete a task or activity.
Inattentional Blindness: The failure to notice an unexpected stimulus when attention is focused elsewhere.
Hyperfocus: A state of intense concentration or absorption in a particular task, often accompanied by time distortion.