Attention Deficit Hyperactivity Disorder (ADHD) describes a unique and neurodiverse brain structure. The prefrontal cortex of a person with ADHD develops differently than in neurotypical people. The different development makes controlling and filtering attention, behaviour, and emotion far more difficult for people with ADHD, which is why it’s considered a ‘disorder’.
Every person with ADHD has a varied collection of traits, which makes each case entirely unique. However, there are a handful of commonalities that mean individuals usually fit within one of three subgroups. They are;
Predominantly Inattentive ADHD (or ADD). The main characteristics are difficulty with attention, focus, and concentration. In addition, some impulsivity, emotional and behavioural hyperactivity are experienced, but to a lesser degree.
Predominantly Hyperactive and Impulsive ADHD. The primary characteristics are difficulty with attention and behaviour control, hyperactivity, and lack of impulse control. Inattentiveness and executive dysfunction are present but to a lesser degree.
Predominantly Combined ADHD. A lack of behavioural, impulse, and attention control are the primary characteristics, all presented in equal measure.