Why Do People Push Placebo Buttons?

By Alex in Daily Trivia on Feb 9, 2010 at 12:33 pm

Placebo buttons are buttons that actually do nothing except give the user an illusion of control.

The advent of computer-controlled traffic signals make the walk buttons at pedestrian crossings on heavily trafficked streets obsolete. By the late 1980s, most (but not all) walk buttons in New York City have been deactivated yet people push them anyhow, either in ignorance, out of habit, or in the off chance the buttons did work.

Many large office buildings also have dummy thermostats to give office workers the illusion of control. Some even go as far as installing white-noise generators to mimic the hum of fans after the HVAC system is shut off.

The same goes for the close button in elevators. Most elevators built or installed since the early 1990s don’t have close buttons that work, unless you have a fireman’s key. People do push them anyhow, because the fact that the door eventually closes reinforces their belief that the button works.


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  1. Mercutio Stencil
    Feb 9th, 2010 at 12:43 pm

    You only have to stand at a corner waiting for the light to change to 5 minutes once before you start pushing the buttons again.

  2. Gauldar
    Feb 9th, 2010 at 12:59 pm

    If they replaced these buttons with bubble wrap, I would be just as satisfied… if not more!

  3. AlisonCJ
    Feb 9th, 2010 at 1:08 pm

    In Toronto I know at least some of the crosswalk buttons work – there’s one on my way to work that if you don’t push it, then you don’t get a walk symbol at all. And every building I’ve lived in the door close button definitely works – the door will stay open about 30 seconds if you don’t push it, but close right away if you do.

    I don’t have a thermostat that I can access at work, but I’d believe that one – I’ve called maintenance guys to fix the temp in my office so many times and they always assure me it’s 21C.. even though my fingernails are turning blue!

  4. zeytoun
    Feb 9th, 2010 at 1:29 pm

    Notice the three words in the blurb: most, many, most

    There’s the answer to your question.

  5. Fun Guy
    Feb 9th, 2010 at 1:35 pm

    I used to work in a bullding co-occupied my military folk. The elevators all had the ‘close-door’ buttons enabled, and the sliding glass doors on the front of the building would not open without a swipe card – or stay open if someone walked into the beam. Despite the numerous warning signs about the doors, there would be a ‘Maxwell Smart’ incident at least twice a week, as someone would smack their nose on the glass as the door shut.
    Funny.

  6. Another Jake
    Feb 9th, 2010 at 1:35 pm

    In my town, the street-crossing buttons work quite well. Pressing one turns the light immediately unless the light has only just changed to green for the main road. If you DON’T press it, it will stay that way until you do or until a car trips the sensor in the road.

    AND, our elevator buttons work fine too….

    I guess the bottom line is: push the button and hope. It takes a whole one second and might save you quite a while at a stoplight.

  7. shecky
    Feb 9th, 2010 at 1:45 pm

    Zeytoun wins this thread with common sense.

    Is it really a mystery why people push buttons? It isn’t really a placebo effect. If a button is present, it’s entirely reasonable to assume that it does what it says it will do, even if it’s effect is difficult to casually quantify.

  8. vic
    Feb 9th, 2010 at 2:16 pm

    Regardless of whether they are real or not, all these buttons do make me feel good about my life. I feel in control when I can shut the elevator door 2 secs before it would shut anyways.

    It is very reassuring.

  9. Courageous Grace
    Feb 9th, 2010 at 2:20 pm

    My city has the same thing Alison’s does. If you don’t press the button, even when the light turns green the walk sign doesn’t light up. Also, I’d say about half of the signal lights here are timer based. The rest are sensor based, meaning if you don’t press the button, you’ll be stuck for a while. Now, downtown Dallas is a bit different. As I recall, the crosswalks don’t have buttons at all because the lights are timed.

    As for the elevator buttons, I’d guess that the “open door” button is a dummy, too. It never seems to work ;)

  10. Shannon
    Feb 9th, 2010 at 2:48 pm

    AlisonCJ, I’m in Toronto as well and I agree that most of the street crossing buttons seem to work.

  11. ArtW
    Feb 9th, 2010 at 3:29 pm

    after all, it gives you something to do while you wait.

  12. Juice
    Feb 9th, 2010 at 3:37 pm

    I think the better question is “Why the hell are there ‘placebo’ buttons?”

    If it doesn’t do anything, why is the button there?

  13. Cola
    Feb 9th, 2010 at 4:47 pm

    I always called the “door close” button in the elevator the “zombie invasion button.” I taught my little sister this and I have no reason to think she knows what it’s really for.

    On a more srs note, in some parts of Portland, I’ve noticed that the walk sign won’t appear when traffic stops unless I press the button by the cross walk. I always thought that was kind of unnecessary.

  14. Otak
    Feb 9th, 2010 at 5:21 pm

    I push the button when there is a button there because I assume the button is there for a reason, that it controls something, or indicates to the system that I want to cross. When there is no button and still a crosswalk man, I assume that if I wait, I will be allowed to cross. It is not a feeling of control that I want but just to simply cross the street. I prefer the no button style…

  15. MShades
    Feb 9th, 2010 at 6:41 pm

    Out here in Japan the “close door” button always works and the instinct of the last person into the elevator is to push it. Then a polite female voice comes on to inform you that the door is closing.

    The last time I was in the States, the non-functioning button drove me nuts – how easily our ideas of normalcy can change….

  16. Kalel
    Feb 9th, 2010 at 6:55 pm

    My life has more pressing matters than buttons.

  17. Jessss
    Feb 9th, 2010 at 8:38 pm

    I work in a shopping center that has just been renovated and the brand new elevators have close-door buttons. They’re right next to the open door buttons (to keep the door open for others to get in), so why shouldn’t it work?

    A more interesting question is why do people repeatedly press the buttons at traffic lights, or press it when they can see somebody else already has? Surely if the button works, pressing it once should set it into motion. It’s not like pressing it repeatedly is going to make it work faster.

  18. Gerard
    Feb 9th, 2010 at 11:27 pm

    Weak post. Most of the buttons I’ve encountered work. No push / no walking stickman. I know an elevator tech. Most of those buttons will not work. But they all could. It’s a user option configuration.

    I still want to see a two level elevator with one button labelled “The Other One”.

  19. macaroniprincess
    Feb 9th, 2010 at 11:42 pm

    When I feel in controll, I’m in controll. Even if only in my own head.

  20. ted
    Feb 10th, 2010 at 12:25 am

    This is about New York, not the entire world.
    Most buttons I’ve seen actually do work.

  21. Colin
    Feb 10th, 2010 at 12:28 am

    Here in Australia the lights don’t turn green UNLESS you push the button in the previous cycle. Doesn’t make much sense? I know.

    So you come to a crossing and there’s no cars going except the ones that are turning, but the little man is red. You press the button and he stays red. The lights change and the cars pass in front of you. Then when the lights change again (so it’s the same situation as when you got to the crossing) the little man turns green.

  22. black adder
    Feb 10th, 2010 at 5:12 am

    Clearly the placebo effect is at work – the owners of the building/city are so convinced of the value of these buttons that they pay to have them installed

  23. Jericho
    Feb 10th, 2010 at 5:37 am

    ‘close’ buttons in elevators in Japan do work. it is not uncommon to see someone hit the button as they depart the elevator as a courtesy to those still waiting to reach their floor too.

  24. john H
    Feb 10th, 2010 at 6:39 am

    Pink noise is sometimes played through speakers in offices in order to mask other distracting noises. The mind automatically tunes it out, yet it drowns out other background noise such as typing clatter or chatter from the water cooler round the corner.

    Nothing to do with fooling staff into thinking the AC is on.

  25. Necronomic Recovery
    Feb 10th, 2010 at 8:59 am

    @Kalel Yes, all this talk of buttons is clearly distracting you from your serious work of commenting on internet posts you’re not interested in.

  26. Baylink
    Feb 10th, 2010 at 9:34 am

    While he correctly notes that the buttons
    always work in fire mode (oh, Look! A
    comment box where you can type off the
    side!), and that’s why they’re there, in
    fact as other posters note, they do often
    actually work, though not necessarily
    immediately.

    A client is an elevator company, and tells
    me that it is programmable whether Close
    will work in non-Fire mode. But they
    don’t “pay to put them in as placebos”.

    My favorite corollary story, though, is
    about the elevator company who were asked
    to rephase the elevator bank in a very
    tall building in New York — I think this
    story comes from Don Norman’s Psychology
    of Everyday Things (which I refuse to
    call by the much less cool title his
    publisher forced on him for the paperback).

    Users were complaining that the elevators
    took too long to show up in the lobby to
    take them upstairs.

    Their prescription, after doing an analysis
    visit? Put big mirrors in the lobby, so
    people can check their look before heading
    upstairs. That way, people will be
    *occupied* while waiting, and won’t
    notice.

    Worked like a champ.

  27. Nicholas Dollak
    Feb 10th, 2010 at 5:59 pm

    People are presumably less likely to dart into traffic if they think they can cause the light to turn green by pushing the button.

  28. Video Game Dork
    Feb 10th, 2010 at 8:00 pm

    I have to agree with what some people said. People press them because they are suppose to work.

    I didn’t know they were placebo! Why would they put them there if there was no point? That’s annoying.

  29. killerbug
    Feb 11th, 2010 at 9:50 am

    They are not placebos where I live. Perhaps in New Yourk people are too stupid to figure such things out but where I live the walk buttons do actually start a sequence that will change the light much more quickly than if you simply wait.

  30. Dave D
    Feb 11th, 2010 at 3:58 pm

    Crosswalk buttons where I live activate the “walk” signal lights, which won’t come on otherwise.

    But they won’t do anything that causes other traffic lights to go out of sync.

  31. StareClips.com
    Feb 11th, 2010 at 11:34 pm

    This post makes an assumption that I think is an incorrect one. One would hope that those who push the button do not know for certain that it does not work.

    In my area, nearly all of the buttons work. If nobody pushes the buttons, the traffic lights continue to work, but there is never an opportunity for someone to cross the street. There is always traffic… whether straight-through traffic or turning traffic… passing through the crosswalk.

    In fact, I have seen many people who, like fools, do not push the button, then act frustrated when they can’t cross forever.

    Not truly understanding how the button works (no, it is not an instant button to change the traffic signal that moment) leads some to believe they do nothing. However, there is never a clear understanding.

    I cannot walk up to a crosswalk and KNOW whether the button does anything useful, whether it has been deactivated, how that particular button will function. Some will almost appear to begin changing the signal immediately… others take their time.

    Without consistency and without an interface to show whether the button is activated or deactivated, the user is only left with pure speculation and assumption. So, if there is a possibility it might be functioning, I’m going to press it. If I know for sure that it absolutely does not work and is not needed, I won’t press it. It’s that simple.

    It isn’t about a bunch of troglodytes pushing disabled buttons because they have been programmed to do so. It’s about the lack of proper communication. If a button has truly been disabled, it should be removed. If it still exists, it must be because it still works.

  32. StareClips.com
    Feb 11th, 2010 at 11:37 pm

    I should add that on many occasions I have used the crosswalk buttons to cause the light to change while driving.

    Sometimes the sensors which detect the presence of a car do not work properly. So, in the middle of the night, when there are NO CARS on the road (except for mine), I could sit at a red light forever (quite literally). Sure, I could back up and drive forward and try all sorts of tricks with my car. But, quite often, the most effective method is to just get out of the car and push the appropriate crosswalk button which will immediately start the process which will lead to my light turning green. By the time I am back in my car and buckled up, I’ve got the green light.

  33. Jens
    Feb 12th, 2010 at 12:42 am

    Where I’m from (Denmark), they work at night-time, and if you don’t press them, it will stay red, even as cars are allowed to drive.

  34. mocax
    Feb 12th, 2010 at 12:48 am

    new york city is a strange place indeed…. o_O

  35. CoyoteBlue
    Feb 12th, 2010 at 9:15 am

    Oh, how long can trusty Cadet Stimpy hold out?
    How can he possibly resist the diabolical urge to push the button that could erase his very existence?
    Will his tortured mind give in to it’s uncontrollable desires?
    Can he withstand the temptation to push the button, that even now, beckons him ever closer?
    Will he succumb to the maddening urge to eradicate history, at the mere push of a single button?
    The beautiful shiny button.
    The jolly candy-like button.
    Will he hold out, folks?
    Can he hold out?

  36. Matthew
    Feb 12th, 2010 at 11:05 am

    I agree with AlisonCJ that not all crosswalk buttons are placebo. I’ve had two instances, both of them at stoplights based on vehicle detection systems, not purely timed, where the light didn’t change for over five minutes, but after getting out of the vehicle and pushing the crosswalk button it changed within 15 seconds.

  37. kt_anon
    Feb 12th, 2010 at 11:17 am

    this article is retarded. people press placebo buttons because not all the buttons are placebo! if you have some statistics on the amount of usage placebo buttons get vs working buttons, that’s worthy of an article. otherwise, this is just another pointless time-wasting article that’s trying to mislead people who don’t have critical thinking reading skills.

  38. Paz
    Feb 12th, 2010 at 12:16 pm

    I work in a prison (Central control). I have staff push buttons to let me know they are at a door even when the door is open.

  39. DaddysFavourite
    Feb 12th, 2010 at 12:47 pm

    Another person from Toronto here. We have plenty of pedestrian crossing buttons that not only work but will only provide a walk signal to pedestrians if they are pushed.

    As well, most close door buttons in elevators do work here.

  40. SkipDog
    Feb 12th, 2010 at 1:46 pm

    I’m in Texas, and could show you several elevators that have definite working close buttons, lights with working walk buttons- and others that have no effect since at least the early 1980s. But when I was a kid, they stressed the importance of using a control group (in this case what happens if I don’t do anything?), multiple trials, elimination of variables… which helps to eliminate false cause and effect perceptions. Go figure.

  41. Eli
    Feb 12th, 2010 at 9:54 pm

    I live in Los Angeles and in my area the crosswalk buttons work. If not pressed, the light will change, but an orange hand will stay on the crosswalk sign, instead of the walking person.
    But people who stand there and press it constantly! What gives?! Don’t they realize it wont change the light faster?!

  42. ic
    Feb 13th, 2010 at 11:14 am

    The crosswalk button works here in DC. Case in point: A child singlehandedly caused a traffic jam by continuously pressing the crosswalk button during rush hour, interrupting the light cycle.

    Also, thermostats in most newer buildings do work – to a point: they are generally restricted to 72 to 76 degrees as the entire building system is computer-controlled.

    I can vouch for the close-door button. I spoke to an elevator tech. during routine maintenance. He informed me that the button does work when the system is not in “rush mode”.

  43. Vole
    Feb 13th, 2010 at 11:31 am

    That explains why I couldn’t get across a particular street last time I visited the US. Thanks a lot America.

  44. Sunil
    Feb 13th, 2010 at 12:33 pm

    Atleast in newyork its true, but in california & vegas it works I remember first time I tried to cross the road waited for 2 minutes or more, and discovered that there is a button to push.
    highly populated areas have deactivated those buttons but for other areas they still work.

    Thermosats in office, I agree most of them are dummy controllers.

  45. Celeste
    Feb 15th, 2010 at 7:06 am

    The ‘door open’ button in my library elevator did something. If you pressed it while between floors it would stop, and you would be stuck there until someone on a floor pushed the elevator call button.

    Also my experience has been than crosswalk buttons must be pressed for the walk sign to come on, except in places like Seattle and NYC.

  46. Veracosa
    Feb 15th, 2010 at 5:22 pm

    It’s called operant conditioning. We are taught to press buttons to gt the desired effect. Later on, we don’t know if the button works, but we still push it anyway.

  47. J.T.
    Feb 16th, 2010 at 3:02 pm

    I work at a camp and the thermostat thing is definitely real. When we first transferred one of our buildings to an automatic thermostat, groups complained that they couldn’t change the temperature. So we put the old thermostats back up but we just didn’t connect them to anything. No complaints since.

  48. Otto42
    Feb 16th, 2010 at 3:46 pm

    Maybe they’re fakes where you live, but around here, the buttons work. My close button does indeed close my elevator doors, and the walk lights change when you press the button (if there is a button there, newer installs don’t have the buttons at all).

    It’s not a dumb idea to press the button to find out if it works. If it doesn’t work, then you won’t bother pressing it again, will you?

  49. Fran
    Feb 16th, 2010 at 3:55 pm

    It’s always amused me when I’m alone on a hotel elevator with the Lobby button lit up and someone else gets on before I reach the lobby—they see the L button lit up but they press it anyway. Yep, we should get there quicker now…:)

  50. Ryan2004
    Feb 17th, 2010 at 1:04 pm

    I can tell you that here in Denver, most crosswalk buttons do work. (No, they don’t immediately change the light, but they trigger a “walk mode” in the signal control computer that alters the next light cycle, typically giving you a walk signal with a slightly longer light to provide time to get across.)

    However, downtown most of the lights are constantly in “walk mode” (including the wonderful “Denver shuffle” – http://www.urbandictionary.com/define.php?term=denver%20shuffle ), so in this part of town there are no buttons to push.

    Some of the newest traffic signals around town in fact have an audible indicator (a sort of “thunk” sound) and a red light that comes on in the middle of the walk button when it’s been activated, so if you’re approaching an intersection to cross, you don’t have to wonder or go pressing the button 15 times just in case.

  51. commenter
    Feb 19th, 2010 at 9:59 am

    So long as some buttons do something and some buttons don’t, non-psychic people will resort to pushing the non-doing-something buttons.

  52. MF
    Feb 25th, 2010 at 11:07 pm

    I don’t know about NYC. But i work for a company that writes the software for traffic control in Australia, and i can tell you for certain that the ‘pedestrian detector’ buttons most definitely do something.

  53. KevinD8888
    May 22nd, 2010 at 12:30 pm

    The New York City Department of Traffic have already said that it would take over $1 million dollars to take down all the disabled P-T-W buttons, so they just don’t replace them during normal construction.

    As for people who press P-T-W buttons consistently, I like to equate the number of times a person presses a P-T-W button is directly proportionate to their impatience and therefore their unintelligence. No way does pressing it more than once help. I see youngsters yelling at the street light: Come onnn! Reflection on video gaming?


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