|Attention span is measured by the time spent continuously on a task. It varies with age. Older children are capable of longer periods of attention than younger children. Most people are capable of a longer attention span when they are doing something they like or find intrinsically motivating. Fatigue, hunger, noise, and emotional stress reduce time on task. Common estimates for sustained attention to a freely chosen task, range from about 5 minutes for a 2-year-old child, to a maximum of around 20 minutes in older children and adults.
ADHD (Attention Deficit Disorder with Hyperactivity)
Just as each child is unique, each child's set of ADHD symptoms may be unique as well. To be diagnosed with ADHD, your child would have to show symptoms in two or more settings, such as at school and at home, before age 7. The doctor will try to rule out other possible causes for your child's symptoms.
ADHD/ADD is usually described as being made up of three core behaviors:
Inattentive type - problems of attention, distractibility,
short-term memory and learning.
Hyperactive type - impulsive, poorly self-monitored behavior.
Combined type - most children with ADHD/ADD fall into this category.