Memorable images make time pass more slowly

TIME FAMOUSLY speeds up when you are having fun. But it slows down, it turns out, when one looks at something worth remembering. According to research published on April 22nd in Nature Human Behaviour, people’s sense of how fast time passes can be influenced by the memorability of the images in front of them. Scientists propose this effect could be a way for the brain to sneak in more processing time before a snap decision needs to be made.

A team led by Martin Wiener, a cognitive neuroscientist at George Mason University in America, tested how visual stimuli alter people’s experience of time. They showed several dozen participants images of different scenes—from empty box rooms to filled stadiums—for between 300 and 900 milliseconds. After each one the participants had to say if the time spent looking at the image was short or long. Their responses revealed that, when the images featured large scenes, such as a vacant warehouse, more time seemed to have passed. The opposite happened when the images were of spaces cluttered with objects, such as an overfull garage.