Attention-deficit hyperactivity disorder or ADHD
A considerably more common childhood disorder is attention-deficit hyperactivity disorder or ADHD, a disorder marked by inattention, impulsiveness, a low tolerance for frustration, and generally a great deal of inappropriate activity. Although all children show such behavior some of the time, it is so common in children diagnosed with ADHD that it interferes with their everyday functioning.
ADHD is surprisingly widespread, with estimates ranging between 3 and 5 percent of the school-age population – or some 3.5 million children under the age of 18 in the United States. Children diagnosed with the disorder are often exhausting to parents and teachers, and even their peers find them difficult to deal with.
More from this Section
- Conditioned stimulus (CS)
Conditioned stimulus (CS) is a once-neutral stimulus that has been paired with an unconditioned ... - Feature detection
Feature detection is the activation of neurons in the cortex by visual stimuli of specific ... - Battle fatigue
Battle fatigue is a state of psychological disorder, sometimes taking the form of a conversion ... - Nativism
Nativism is the nature side of the nature-nurture problem; in psychology this doctrine ... - Magic thinking
Any attempt to understand and manipulate the human condition by recourse to supernatural ...