Motor development/milestones
Sensory reaction (eg, touch, sound, light, smell, taste, heat, cold, pain)
Communication/language/babble
Activity (overactivity/passivity) or impulsivity
Attention/concentrating/"listening"
Social interaction/interest in other children
Behavior (eg, repetitive, routine insistence)
Mood (depressed, elated/manic, extreme irritability, crying spells)
Movement disorder (eg, tics or tremors)