In this experiment, 42 healthy volunteers aged between 18 and 24 years (mean: 21.76 and SD: 1.65) including 33 males and 9 females were recruited. All the recruited participants had normal or corrected to normal vision ability and had no history of brain disorders. The participants were allowed to practice the driving simulator for approximately 10 minutes because they had no previous experience operating the driving simulator. Further, the participants were allowed to stop their participation in the experiment at any time without any penalty if they were not feeling comfortable.
In the experiment, the participants were exposed to two type of tasks: primary and secondary tasks.
Driving (Primary Task)
This task required driving for 30 minutes duration and paying full attention to all the driving rules, such as driving 80 km/hour speed, and using indicator lights to turn left/light or when needed. During the driving task, the driving environment was limited to one simulator vehicle on a highway road in order to provide same conditions to all the participants. This task was used both in session 1 and session 2. Session 1 was used as the control session, because the participants just performed the driving operation without any distraction; while session 2 consisted of the driving task along with cognitive distraction. The cognitive distraction is referred to as a secondary task. Each of the sessions was 30 minutes long.