NEW YORK CITY, N.Y.- April 14, 2014 --
Most everyone has heard of attention deficit hyperactivity disorder, or ADHD.
But some mental health experts say there's ANOTHER attention disorder being missed.
They call it 'sluggish cognitive tempo,' or SCT.
It's characterized by lethargy, daydreaming and slow mental processing.
But it hasn't been recognized yet as a legitimate disorder, and some critics dismiss it.