Researchers from the University of Bath in the UK measured sensation-seeking behaviour and analysed risk taking in adults aged 17-56 using a computer-based simulation.
Under the pretence that participants were taking part in an eye-tracking experiment, the researchers split 80 participants into two groups - half wore a bicycle helmet and half wore a baseball cap.
Individuals were tasked with inflating an on-screen animated balloon whilst wearing either the cap or the helmet - which they were told was just there to support an eye-tracking device.
Over 30 trials, the researchers tested each individual's propensity to keep on inflating and used this to measure the likelihood of them taking more risks, comparing those wearing a cap with those wearing a helmet.
"The helmet could make zero difference to the outcome, but people wearing one seemed to take more risks in what was essentially a gambling task," said Ian Walker from University of Bath.
"Replicated in real-life settings, this could mean that people using protective equipment might take risks against which that protective equipment cannot reasonably be expected to help," he said.
