ADHD & Neurodiversity in Singapore: Assessment and Therapy Across the Lifespan

ADHD & Neurodiversity in Singapore: Assessment and Therapy Across the Lifespan

I’m ADHD myself. It shapes how I assess, how I work in session, and how I built this practice.

How did nobody catch this earlier? That is the question I hear most often, in some form, from the parents of newly assessed children, from teenagers doing their own reading at 1 a.m., and from adults who have spent decades being told they were lazy or careless. Sometimes it was missed because the picture did not look textbook. Sometimes the system was not set up to look. Either way, the place to begin now is here.

A clearer picture of ADHD, at every stage of life

Whether you’re looking at a child who can’t sit through homework, a teen who’s bright but falling behind, or an adult who’s been told their whole life they just need to “try harder”, ADHD often looks different than people expect. I’ll help you see what’s actually happening, and what helps.

Or read how I approach ADHD


This page is a map. It covers how ADHD shows up at different ages, what a thorough assessment actually includes, what the evidence says about treatment, and how I work with families and adults in Singapore. If you already know which part you need, jump ahead: Early years (0–6) · Children · Teenagers · Young adults (18–25) · Adults · Women and girls · Assessment.


ADHD is a developmental condition, not a character flaw

ADHD, attention-deficit/hyperactivity disorder, is one of the most well-studied conditions in clinical psychology. Decades of research have established it as a neurodevelopmental condition involving differences in attention regulation, impulse control, working memory, and self-directed executive function. It’s not caused by poor parenting. It’s not caused by too much screen time. It’s not a failure of willpower. And for a large majority of people who have it, it does not go away when childhood ends.

What makes ADHD hard to recognise, and hard to live with, is that the same underlying difference can look radically different at age 6, age 16, and age 36. A seven-year-old with ADHD might be climbing the furniture. A seventeen-year-old might be quietly failing A-Levels while appearing lazy. A thirty-seven-year-old might be a high-performing professional who can’t start their tax return and doesn’t know why.

These are not different people with different problems. They’re the same condition, presenting differently across development.

In Singapore, a number of factors complicate recognition further. Academic environments reward sustained attention and compliance. Cultural norms around discipline and effort sometimes get in the way of getting a proper assessment. Adult ADHD, in particular, is significantly under-recognised here, research in Asia-Pacific consistently shows adults waiting years longer for diagnosis than their peers in North America or Europe.

I trained under some of the people who built the modern evidence base for ADHD and mood disorders: Mayo Clinic for my postdoctoral fellowship, UNC Chapel Hill for doctoral training with Eric Youngstrom and a year-long practicum under Jon Abramowitz, a rotation at Duke’s Center for Autism and Brain Development, and my predoctoral internship at UT Health San Antonio. The full record, including the earlier research years at Temple, is on my training and credentials page. That’s the lens I bring to this work: what the research actually supports, and how to apply it to a specific person in a specific family in a specific country.

And if you want to know where I stand on the bigger question, I’ve written an honest answer to whether I’m a neurodivergent-affirming therapist.


How ADHD shows up, across the lifespan

StageIt often looks likeOften mislabelled as
ChildrenClimbing, running, blurting, struggling to wait; or daydreaming through class and losing homework“Lazy” or “in their own world”
TeenagersBright but falling behind; planning, sustained focus, and emotional regulation give way under exam loadAnxiety or depression, which may also be there
AdultsInternal restlessness, executive-function failure, high-performing and privately exhaustedCareless, or “just needs to try harder”
Women and girlsInattentive presentation, masking learned early, decades of compensating“Just sensitive” or “dreamy”

ADHD in children

In younger children, ADHD usually shows up as the classic hyperactive-impulsive presentation: climbing, running, blurting, interrupting, struggling to wait. But in many children, and disproportionately in girls, the inattentive presentation shows up without the hyperactivity. These are the children who daydream through class, lose their homework, and get labelled as “lazy” or “in their own world.” Both are ADHD. Both benefit from the same underlying approach: assessment, behavioural parent training, classroom accommodations, and, where appropriate, medication consultation with a child psychiatrist.

Read about ADHD in children

ADHD in teenagers

Adolescence is often where ADHD becomes expensive. The demands of secondary school, O-Levels, and later A-Levels or IB require exactly the executive function skills that ADHD disrupts: long-term planning, sustained focus on uninteresting material, working memory for multi-step problems, and emotional regulation under social pressure. Teens with undiagnosed ADHD often arrive in my practice looking like anxiety or depression, which they also have, because years of academic struggle without a correct explanation takes a toll.

Read about ADHD in teenagers

ADHD in adults

A large share of the adults I see were never diagnosed as children. Some were, and were told, incorrectly, that they’d grow out of it. The adult presentation is usually less about external hyperactivity and more about internal restlessness, executive function failure, emotional dysregulation, and what research increasingly calls rejection sensitivity. Many of my adult clients are professionally high-functioning and privately exhausted. Assessment matters here because it changes the explanation, and the explanation changes what you do next.

If you only recognised yourself in adulthood, often after a child’s assessment or a year when the coping ran out, I’ve written a separate page on late diagnosis in adults, and how an assessment works when you can’t lean on childhood records.

Read about ADHD in adults

Women and girls with ADHD

Women and girls are systematically under-diagnosed with ADHD. The reasons are well-documented: the inattentive presentation is more common in girls, masking is learned early, and diagnostic criteria were built on samples of young boys. Many of the women I assess were told in childhood that they were “just sensitive” or “dreamy,” and have spent decades compensating. Hormonal cycles, pregnancy, postpartum, and perimenopause all interact with ADHD in specific, well-studied ways, and the first step is almost always getting the diagnosis right.

Read about ADHD in women and girls


What a proper ADHD assessment actually includes

A credible ADHD assessment is not a 20-minute questionnaire, and it is not a single online screener. Getting the diagnosis right matters because the differential matters: depression, anxiety, trauma, sleep deprivation, thyroid issues, and specific learning disorders can all produce attention problems that look like ADHD but are not ADHD, or are ADHD plus something else.

When I assess someone for ADHD, I use a multi-method, multi-informant approach that follows the standard of care set out by the American Academy of Child and Adolescent Psychiatry, the NICE ADHD guideline (NG87), and the recent Asia-Pacific consensus statements on adult ADHD. That means:

ComponentWhat it involves
The clinical interviewA structured clinical interview covering developmental history, current functioning across life domains, and co-occurring conditions. For children and teens, this always includes parent input and, with consent, school input. For adults, this includes retrospective self-report and, where possible, input from a partner, parent, or long-standing friend who has known the person across contexts.
Rating scalesStandardised rating scales completed by the person being assessed and by people who see them in daily life. Which scales I use depends on age and presentation; all are validated instruments, scored against norms and interpreted against the clinical interview, never in isolation.
Performance measuresDirect performance measures of attention, working memory, and executive function where indicated. This is where ADHD assessments vary widely in quality. Computerised attention tasks alone do not diagnose ADHD; they contribute one piece of data to a larger picture.
Differential diagnosisDifferential diagnosis and co-occurring condition screening. Most people with ADHD have at least one co-occurring condition, most commonly anxiety, mood disorders, or a specific learning disorder. Identifying what else is going on is often more important than confirming the ADHD itself.
The written reportA written report with findings, a clear diagnostic formulation, and concrete recommendations, for school, for work, for home, and, where appropriate, for medication consultation with a psychiatrist.

See how I do ADHD assessments in Singapore

Assessing teenagers aged 13 to 17

Assessment for adults whose parents cannot be part of the process


Treatment is multi-modal. I’ll tell you what the evidence actually supports

The research on what helps ADHD is deeper and more consistent than the research on almost any other psychiatric condition. The short version:

For children with ADHD, the first-line evidence-based intervention is behavioural parent training, not “parenting classes” in a general sense, but specific, manualised programs with strong randomised-trial support. Parent-Child Interaction Therapy (PCIT) is one of them; I am PCIT-trained. For school-age children, behavioural parent training is often combined with classroom behaviour management, and, depending on severity and age, medication consultation with a child psychiatrist.

The MTA Study, the landmark trial in this field, established decades ago that combined behavioural and medication treatment produces the strongest outcomes for most children with moderate-to-severe ADHD.

For teenagers, the evidence base shifts toward cognitive-behavioural therapy adapted for ADHD, executive function skills coaching, and continued medication management. Motivation and autonomy become central, interventions that worked at age 8 often don’t work at age 15.

For adults, cognitive-behavioural therapy for adult ADHD (CBT-A) has the strongest evidence base among psychotherapeutic interventions, with well-designed randomised trials going back to the early 2000s. Medication consultation, typically with a psychiatrist I refer to, is the other side of the equation. Most adults who do well with ADHD do well on a combination of the two.

Across all ages, I also spend a lot of time on co-occurring conditions: anxiety, mood, OCD, and behavioural concerns. These are my primary specialties, and ADHD almost never travels alone. For children and adults with anxiety or OCD alongside ADHD, I use exposure-based cognitive-behavioural therapy, the approach I trained in directly under the researchers who built much of the evidence base for it.

What I don’t do: I don’t sell single-modality solutions. I don’t push supplements. I don’t do neurofeedback, working-memory training apps, or elimination diets, because the evidence for those as stand-alone ADHD treatments is poor. I will tell you straight whether something is likely to help, likely not to help, or unknown, and I’ll show you the research.


If ongoing therapy is the next step after assessment, here is what ADHD therapy with me looks like.

How ADHD care works in Singapore, and how I can help you navigate it

Singapore has strong paediatric and psychiatric infrastructure, and a small but growing number of clinicians with real ADHD expertise. The system can still be confusing if you’re new to it, or if you’ve been in it for a while and haven’t gotten answers.

Most ADHD care pathways here involve some combination of a clinical psychologist (assessment and therapy), a paediatrician or psychiatrist (medication, if indicated), and a school or workplace (accommodations and support). These can be coordinated through public-sector services, including KKH, NUH, and the Institute of Mental Health, or through private practice. Both routes have trade-offs, and I’ll help you think through them based on your situation.

Your situationHow I help
You need medication consultationI refer to psychiatrists I know and trust, and I communicate with them directly, with your consent.
Your child is in an MOE mainstream schoolAssessment reports written in the format school Allied Educators and Educational Psychologists can actually use.
Your child is in an international schoolReports written to the standard the school will recognise, including documentation that meets IB and Cambridge exam accommodation requirements.
You’re an adult, working out what comes nextDisclosure to employers, partners, and family; accommodations; whether and when to pursue medication; and the practical executive-function scaffolding that makes a real day-to-day difference.

Small caseload, by design

I keep my caseload small on purpose. ADHD assessment and therapy are not high-volume work. Doing this well requires time for integrated diagnostic reasoning, careful written reports, coordination with schools and psychiatrists, and sustained therapy when therapy is what’s needed. I take on fewer clients so the work goes deeper, which means I have a waitlist more often than not, and I’m transparent about that.

The therapy room at Lightfull Psychology

If you’re not sure whether I’m the right fit, read my clinical-fit page, I’m specific about who I work with, who I don’t, and which colleagues in Singapore I refer to instead when the fit is wrong. The worst outcome for everyone is starting work that shouldn’t have started.


Next steps

If you already know what you need, an assessment, therapy, or a second opinion, Book a Free Meet & Greet and we’ll set up a 15-minute call. If you want to read more first, the four sub-pages on this site go deeper into ADHD at each life stage. If you’re supporting someone else, a child, a teenager, a partner, start with the page that fits their age, and we’ll figure out the rest together.

Booking starts with a free fifteen-minute Meet & Greet. No paperwork, no obligation, and nothing to prepare. I like to lay eyes on the people I might work with, and you should get to do the same before committing to anything. If assessment or therapy is the right next step, we book your first conversation from there. And if you’re arranging this for someone you love, a partner, a parent, a grown child, the Meet & Greet is the right first step for you too.

Book a Free Meet & Greet

Lightfull Psychology · 101 Telok Ayer Street #03-03 · Singapore 068574 · a short walk from Telok Ayer MRT

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