Work is usually where the question starts. Someone capable is somehow not delivering, or is delivering brilliantly and then vanishing for a week. Performance reviews say “inconsistent.” Nobody, including them, can explain why.
This is a comparison of how the two patterns actually behave at work, domain by domain. It is not a test — the same behaviour appears in both lists, and what separates them sits underneath.
Starting: no pressure versus no clarity
This is the single most useful distinction, and it is the one people most often get wrong about themselves.
- ADHD-leaning — the task is clear enough; what is missing is urgency or interest. A deadline supplies what motivation cannot, which is why the night before works and the three weeks before did not
- Autism-leaning — the motivation is there; what is missing is a clear enough picture of what is being asked. Vague instructions do not feel annoying so much as impossible to act on
- Both — needs pressure and clarity at once, and usually has neither. A looming deadline on an ambiguous task is close to the worst possible combination
A practical check: when a task stalls, ask whether a clear deadline would unstick it, or whether what you actually need is someone to define what “done” looks like. Different answers point in different directions.
Also read: ADHD, autism, or both? How the three actually differ →
What the research says about executive function
Executive function — planning, organising, holding information in mind, switching between things — is affected in both. A 2024 review in Children pooled 36 studies and 4,760 participants, and found something counter-intuitive.
On laboratory tests, ADHD and autism were essentially indistinguishable on executive function. The difference appeared only when researchers used questionnaires about everyday functioning, where ADHD showed clearly greater impairment. The review's own conclusion was that questionnaires capture daily-life difficulty that direct testing misses.
For anyone who has performed well on an assessment and still cannot run their own week, that finding is worth holding onto. The gap between what you can do in a quiet testing room and what you can do on a Tuesday morning is real, documented, and not a character failing.
The same review found the combined ADHD-plus-autism group performed worse than autism alone, and looked broadly similar to ADHD alone. In practical terms: if both are present, the executive-function support that helps ADHD is usually the more urgent half of the plan.
Interruptions and changed plans
- ADHD-leaning — an interruption does not cost one task, it costs the thread. Getting back takes far longer than the interruption itself, and the rest of the day often goes with it
- Autism-leaning — a changed plan is not a scheduling inconvenience. The internal model has to be rebuilt, and that costs real recovery time even when the new plan is objectively better
- Both — the meeting that moves twice and then runs over is genuinely, disproportionately expensive
Colleagues tend to read both as inflexibility. Neither is. One is a lost thread; the other is a rebuilt model.
Meetings
Leans ADHD
- Drifts, then rejoins two topics later having missed the connective tissue
- Interjects before the thought is finished, because holding it costs more than saying it
- Remembers the interesting tangent vividly and the action point not at all
Leans autism
- Prepares in advance, sometimes scripting an opening line
- Tracks content closely but finds the unwritten rules — when to speak, how long, when it is over — effortful
- Needs recovery time afterwards that has nothing to do with the meeting's difficulty
Often both
- Scripts in advance, then drifts anyway, then crashes afterwards
- Appears fully engaged and is quietly running on reserves the whole time
The open-plan office
Worth separating, because it is where the two diverge most sharply and where the wrong accommodation does real harm.
- ADHD-leaning — movement and noise pull attention outward. Headphones with familiar music can genuinely help; complete silence sometimes makes focus harder
- Autism-leaning — the same environment is closer to physical assault: unpredictable noise, fluorescent light, no control over proximity. This is sensory load, not distraction, and it accumulates rather than habituating
- Both — needs stimulation and protection from stimulation, often within the same hour
The distinction matters for what you ask for. “Somewhere less distracting” and “somewhere with predictable sensory input” are not the same request, and a glass meeting room with a corridor view satisfies only one of them.
The inconsistency that gets held against you
Both patterns produce uneven output, and the unevenness is usually what shows up in appraisals — often phrased as attitude or effort.
- ADHD-leaning — capacity tracks interest and urgency, so the same person is exceptional on the interesting project and unreachable on the routine one
- Autism-leaning — capacity tracks clarity and sensory conditions, so output is excellent in a well-defined role and collapses after restructuring
- Both — the pattern looks random from outside, which is precisely why it gets read as motivation
What helps — matched to the driver
If it leans ADHD
- Shrink the first step until it is almost trivial — “open the document,” not “write the report”
- Borrow urgency deliberately: a short session with someone else working alongside you
- Externalise time — visible timers and clocks, because internal time estimation is unreliable
- Capture tasks the moment they appear; do not rely on remembering them later
If it leans autism
- Ask for the brief in writing, with an explicit definition of finished
- Request advance notice of changes — the notice matters as much as the change
- Control the sensory environment before the day starts, not after it goes wrong
- Ask for unwritten expectations to be made explicit; this is a reasonable request, not a failure
If it is both
- Sequence it: stabilise sensory load first, then work on executive systems — doing the second in a state of sensory overload rarely holds
- Expect systems to need rebuilding periodically; this is maintenance, not relapse
Source: Time blindness — why an hour and three hours feel the same →
Exploring this in Kathmandu or online
Bhatta Psychotherapy offers assessment-informed ADHD care and neurodiversity-aware psychotherapy in Kathmandu and via secure video. Autism-related questions can be explored in therapy, and we say clearly when a formal autism diagnostic pathway sits outside what we provide. Fees are confirmed before a first full session.