Test for how long you fit focus

“Attention span” na everyday expression. Wetin researchers dey measure na sustained attention, wey dem still dey call vigilance: to stay ready for signal wey fit show for any random time. Dis page dey run short Psychomotor Vigilance Test (PVT-B), a 3-minute version of the 10-minute PVT, wey dem make for real-life settings wey 10 minutes too long 1. Dem design the original PVT to track how alertness dey drop during long work when person no sleep 2.

The rules follow the published short version: the circle turn green after random 1 to 4 seconds (including the 1 second wey dem dey show your time), tap wey be 355 ms or slower count as lapse, and tap under 100 ms or before the green circle na false start 1.

• Slow taps (lapses): na the number wey you suppose watch. Each one na moment wey your attention slip. Lapses dey rise clearly when people no get enough sleep 3.
• Average reaction time: your average speed for the whole test.
• Early taps: taps before green. If plenty dey, e fit mean say you dey guess instead of waiting.

No fair “normal” number wey we fit give you: phones, screens and mice add their own delay, and one touchscreen version of the PVT measure the same people about 95 ms slower pass the lab device 5. Compare your own tests wey you do with the same device.

Na so dem plan am. To keep your focus on dull task na exactly the skill wey dem dey measure. For beginning of test, most people dey do well; mistakes dey tend to show as the minutes dey pass, and dem dey show more when you tire 3.

One meta-analysis of short-term sleep loss find say simple attention and vigilance tasks dey among the things wey e affect pass 4. Time of day, caffeine, distraction and practice fit change your score too, so check several tests wey you do for similar times instead of only one.

The reaction time test dey take about one minute and e show your speed. Dis one dey last longer, so e fit catch the lapses wey come when your focus dey fade. For research, the 3-minute version follow the 10-minute test through total and partial sleep loss, with somewhat smaller effects 1.