I diagnosed Osaka!
Sluggish Cognitive Tempo (SCT) is an unformalized descriptive term which is used to better identify what appears to be a homogeneous sub-subgroup within the formal subgroup ADHD predominantly inattentive (ADHD-I or ADHD-PI) classification in the Diagnostic and Statistical Manual of Mental Disorders, fourth edition. It has been roughly estimated that the SCT population may make up 30-50% of the ADHD-PI population.