how can sleep disorders and tic disorders be conceptualized in a dimensional manner?

         sharp distinct controlling point made about a single topic with evident awareness of task (mode). 
substantial, and/or illustrative content demonstrating strong development and sophisticated ideas.
sophisticated arrangement of content with evident and/or subtle transitions.
precise illustrative use of words and sentence structures to create consistent writer's voice and tone appropiate to audience.
evident control of grammar, mechanics, spellimg, usage, and sentence formation.