This is the first article in a three part ADHD regulation series for parents.
ADHD and regulating Attention: Understanding the Spotlight
This article looks at questions parents often ask about ADHD. Why can my child focus for hours on something they enjoy but struggle with homework? What does "regulating attention" actually mean? And why does attention look so different from one setting to the next?
When parents first wonder whether their child might have ADHD, attention is often the first concern. "He can't concentrate." "She's always distracted." "He starts things but never finishes them." These observations matter, but ADHD is more complicated than simply having "too little" attention. A better way to understand it is that ADHD affects a child's ability to direct, maintain, and shift attention depending on what a situation requires - a distinction supported by decades of cognitive neuroscience research into how attention is organised in the brain, not as a single dial, but as a set of interacting networks for alerting, orienting, and controlling focus (Petersen & Posner, 2012).
One useful way to picture this is the spotlights lighting a theatre stage. Sometimes the light needs to be wide and diffuse, spreading across the whole stage so a child can take in several things at once - listening to the teacher while tracking the board and remembering what comes next. At other times, the light needs to narrow into a sharp spotlight on one task. And sometimes it needs to move quickly from one actor to another as the situation changes. In ADHD, the difficulty is not always that there isn't enough attention - it's that controlling the spotlight is harder.
Regulating Attention Difficulties in ADHD
In psychology, we use the word regulation to describe this kind of control - adjusting what we're doing, thinking, or feeling to suit what a situation requires. Good regulation means increasing focus when something matters, filtering out distraction, shifting attention when circumstances change, and returning to a task after an interruption.
This helps explain why a child with ADHD might struggle with homework or getting dressed, yet lose hours in a game or hobby they love. It doesn't mean they could concentrate fine "if they just tried harder." Interest, novelty, immediate feedback, structure, and one-to-one support all make attention easier to regulate — which is also why inattentive difficulties are so often missed. Large-scale prevalence research shows that the predominantly inattentive presentation is actually the most common form of ADHD in the general population, yet children with combined inattentive-hyperactive presentations are far more likely to be referred for assessment, simply because their difficulties are more visible (Willcutt, 2012). Quiet, "day-dreamy" attention difficulties can go unnoticed for years.
If you're noticing this kind of uneven attention in your child, a comprehensive ADHD assessment at INPSYGHT can help explore whether ADHD provides the best explanation, and whether other factors are also contributing.
Can We Measure Attention?
One part of a comprehensive ADHD assessment can include a Continuous Performance Test (CPT) - a computerised task measuring vigilance and impulsive responding under structured conditions. A CPT can show how consistently a child responds over time, whether they miss things they should respond to, and whether performance drifts as the task continues. Interestingly, research comparing ADHD presentations has found that inattention symptoms - more than hyperactivity or impulsivity - are the strongest predictor of performance across measures of vigilance, processing speed, and inhibition alike (Chhabildas, Pennington & Willcutt, 2001). In other words, the "attention" piece of ADHD may be doing more of the regulatory work than we sometimes assume.
Importantly, a CPT is not an ADHD test on its own. A child can perform well on a structured computer task and still have significant everyday difficulties; another may perform poorly because they're tired, anxious, or confused. It adds one piece of objective information to a much larger picture, alongside developmental history, parent and teacher input, and standardised rating scales - all part of ADHD assessment at INPSYGHT in Manly and Belrose.
Why Can Attention Look So Inconsistent?
The spotlight may be too broad when it needs to narrow, fixed on something interesting when it needs to move, or slow to return to a task after interruption. This is why ADHD looks inconsistent - a child may thrive one-to-one but struggle in a busy classroom, or complete a complex activity they love while finding a simple repetitive task surprisingly hard.
A more useful question than "Can my child concentrate?" is often: "When can my child regulate attention successfully, when does it become difficult, and what changes their performance?" That's one of the questions I explore in assessment - bringing together what happens at home, at school, and during structured testing, as part of a broader look at how a child regulates attention, thinking, and emotion, which we'll turn to in Parts 2 and 3 of this series.
The aim is never simply to attach a label. It's to understand how the spotlight of attention is working for that particular child - and what might help them control it more effectively.
References
Willcutt EG, Doyle AE, Nigg JT, Faraone SV, Pennington BF. (2005). Validity of the executive function theory of attention-deficit/hyperactivity disorder: a meta-analytic review. Biological Psychiatry, 57, 1336–1346.
Willcutt EG. (2012). The prevalence of DSM-IV attention-deficit/hyperactivity disorder: a meta-analytic review. Neurotherapeutics, 9, 490–499.
Chhabildas N, Pennington BF, Willcutt EG. (2001). A comparison of the neuropsychological profiles of the DSM-IV subtypes of ADHD. Journal of Abnormal Child Psychology, 29, 529–540.
Petersen SE, Posner MI. (2012). The attention system of the human brain: 20 years after. Annual Review of Neuroscience, 35, 73–89.
Faraone SV et al. (2021). The World Federation of ADHD International Consensus Statement. Neuroscience & Biobehavioral Reviews, 128, 789–818.