The new study builds on that work and says that the brain rewrites history when it makes its choices, changing our memories so that we believe we wanted to do something before it happened.

In one of the studies undertaken by Adam Bear and Paul Bloom, of Princeton University, the test subjects were shown five white circles on a computer monitor. They were told to choose one of the circles before one of them lit up red.

The participants were then asked to describe whether they’d picked the correct circle, another one, or if they hadn’t had time to actually pick one.

Statistically, people should have picked the right circle about one out of every five times. But they reported getting it right much more than 20 per cent of the time, going over 30 per cent if the circle turned red very quickly.