im a child psychiatrist who treats obviously a lot of adhd the only thing i disagree with here is the characterization of attention as motivation  memory it makes it seem that inattentiveness = laziness ie lack of motivation i think of it more this way- attention has several moving parts    orienting to the task at hand   remaining on the task at hand ignoring distractions  attending to alternate distractions yes it seems contradictory but you want to ignore the bird outside your window but attend to the fire alarm going off in the building hyperfocus causes folks with adhd to ignore both  completing task at hand the only point in the process where motivation really kicks in since unless a person is in the zone of flow they want to stop when they are almost but not quite done  i also think of motivation as more a conversation with yourself i can stop after i finish this i only have to do x more to be done that last one i learned from a teenage patient who would talk herself through homework i can take my break after i finish the 10 math problems