In late May, eight employees of Mayo Clinic's medical-records department packed up their belongings, powered down their computers and moved into a brand new office space in the heart of Rochester, Minnesota. There, they made themselves at home — hanging up Walt Disney World calendars, arranging their framed dog photos and settling back into the daily rhythms of office life.
Then, researchers started messing with them. They cranked the thermostat up — and then down. They changed the colour temperature of the overhead lights and the tint of the large, glass windows. They played irritating office sounds through speakers embedded in the ceilings: a ringing phone, the clack of computer keys, a male voice saying, “medical records”, as if answering the phone.