If you're one of the millions of British motorists who think they're capable of talking on a mobile phone or drinking a cup of coffee behind the wheel, we've got some interesting news for you.
It seems that the people least capable of multitasking are the people who think they're good at it.
Psychologists from the University of Utah subjected 310 volunteers to tests and questionnaires designed to evaluate the difference between their imagined multitasking ability and their actual multitasking ability.
They also noted how likely the participants were to use their mobile phone while driving.
The study also found that 70 per cent of people think they are better than average at multitasking, a statistic which is, of course, technically impossible.
Professor David Strayer, senior author of the study, said: "The people who are most likely to multitask harbour the illusion they are better than average at it, when in fact they are no better than average and often worse.
"The people who multitask the most tend to be impulsive, sensation-seeking, overconfident of their multitasking abilities, and they tend to be less capable of multitasking."
