There are so many queues we've all stood in. Waiting to buy groceries. Waiting for hours before an exam starts. Waiting for movie tickets on a Friday night. Waiting to be called in and checked at a clinic.
They look like the same activity from the outside: a line, a wait, a turn eventually coming. But each one leaves a completely different feeling for the person standing in it. And that difference isn't incidental. It's neurological.
When the anticipated outcome is good, the brain releases dopamine, the chemical tied to pleasure, motivation, and reward. Interestingly, research on anticipation shows the dopamine rise during the wait for a reward can be sharper than the response to the reward itself, which is part of why the wait for a movie you're excited about, or the final weeks before a baby is due, can feel more charged than the event.
When the anticipated outcome is uncertain or threatening, a different system takes over. The amygdala, the brain's threat-detection centre, activates instead. It floods the moment with uncertainty and vigilance rather than anticipation. You're not looking forward to what's next, you're bracing for it.
So the first thing worth asking about any waiting line is not "how long is it," but "which of these two systems is running while people stand in it." A queue for concert tickets and a queue outside a scan room are not the same kind of wait, even if the clock says otherwise.
In 1985, David Maister wrote what's still one of the most cited papers on service psychology, The Psychology of Waiting Lines. His central idea was a simple formula:
S = P − E
Satisfaction equals Perception minus Expectation. If you expect average service and perceive something better, you leave satisfied. If you expect more than you get, you leave dissatisfied, irrespective of how good the service was.
Maister went further and laid out eight propositions about what makes a wait feel longer than it is: unoccupied time feels longer than occupied time, uncertain waits feel longer than known ones, unexplained waits feel longer than explained ones, unfair waits feel longer than equitable ones, anxiety stretches time, and solo waits feel longer than waiting in company.
https://davidmaister.com/articles/5/52/
This holds up reasonably well for restaurants, grocery lines, and box offices. You have alternatives. If the wait is bad or long, you can leave, go elsewhere, or simply decide it wasn't worth it. The stakes are your evening, not your body.
Healthcare breaks the formula, or at least complicates it badly. You don't queue for a diagnostic scan the way you queue for popcorn. There's rarely a real alternative in the moment, and the outcome isn't a nice-to-have; it's tied to survival, uncertainty about your own body, or someone else's, probably someone close to you. Almost nobody feels neutral in a hospital waiting room.
Curiously, later research testing Maister's propositions in hospital settings found at least one reversal: several studies found that accompanied patients sometimes perceived their wait as longer than solo patients did, the opposite of what Maister's original leisure-context research predicted. Waiting with someone you love, watching them get anxious too, can make time worse, not better, when the stakes are high enough.
What the Data Actually Shows in Healthcare
A few findings are worth sitting with, because they don't always match intuition.
A Geneva University Hospitals study of over 500 emergency department patients found that what drove dissatisfaction wasn't simply how long people waited. It was whether staff had clearly signalled how serious their situation was, whether patients felt forgotten, and whether anyone gave them an honest estimate of the wait at all. The study described a "golden hour" a rough threshold patients were willing to tolerate before frustration set in, almost regardless of the true wait time.
<https://link.springer.com/article/10.1186/s12873-019-0254-1>
A separate qualitative study of clinic patients found that unstructured waiting, sitting with literally nothing happening, felt considerably worse than waiting that included even a small task: getting vitals taken, filling a form, having labs drawn. Occupied time, once again, doing exactly what Maister described forty years earlier, but with a lot more at stake than a table for two.
<https://link.springer.com/article/10.1186/s12913-019-4301-0>
And a 2025 study across a tertiary hospital's emergency room in Kenya, with over 900 patients, confirmed what shows up again and again across countries: perceived wait time predicted patient satisfaction more strongly than actual wait time did. The clock is rarely the real problem.
<https://doi.org/10.1371/journal.pone.0322015>
What This Means for Designing Healthcare Spaces
If perception outweighs the actual number on the clock, then the fix isn't always shorter waits; it's a differently designed wait. A few directions worth exploring for healthcare systems:
Make the wait visible. Often the real problem in hospitals isn't capacity at admin desks, discharge counters, or diagnostic labs. It's that nobody can see where they stand in the process. A simple visible status, "your reports will be ready by 4:15," does more for calm than most operational fixes.
Give people something small to do with the time. Vitals, forms, or a short pre-consultation questionnaire aren't just administrative steps; they're what turns unoccupied dread into occupied, forward-moving time.
Some clinics have already started to adopt it by merely placing a weighing machine and an eye checkup sheet on the wall in the waiting room for people to be engaged in self-diagnosis.
Explain the delay before someone has to ask. "The doctor is fifteen minutes behind because of an earlier emergency" changes the emotional read of a wait entirely, compared to silence. The key here is to tell before being asked. A lot of times, the person waiting waits a lot longer before asking "how much more time it will take", and hence, when this question is posed, it comes from a frustrating space. The key is that before the individual reaches that stage, you give them the answer to their anticipation.
Offer small moments of control. Ellen Langer and Judith Rodin's well-known 1976 study found that nursing home residents given even minor choices, like deciding whether to care for a plant, showed measurably better wellbeing outcomes than residents whose choices were made for them. A healthcare waiting room rarely lets patients control anything. Even something as small as choosing where to sit, or being asked whether they'd prefer a text update instead of waiting to be called, hands a sliver of that control back.
<https://academic.oup.com/gerontologist/article/54/1/67/558565>
Design for the amygdala, not against it. Soft lighting, lower noise, visible clocks instead of ambiguous ones, staff who acknowledge people rather than walk past them- all of it works directly against the threat response that a clinical environment triggers by default.
None of this shortens the actual wait. But the growing body of research, from Maister's original propositions to the newer hospital-specific studies, keeps pointing at the same idea: people don't just want to wait less. They want to understand what they're waiting for, feel some agency in it, and not feel forgotten while it happens.
That's a very different design brief than "reduce average wait time by ten minutes." It's the difference between managing a queue and actually managing how a person feels while standing in one.
