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. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: Transp Res Part F Traffic Psychol Behav. 2019 Jul;64:213–226. doi: 10.1016/j.trf.2019.05.003

Table 2:

Average VA, CS, detection rates, reaction times, and deceleration for the different conditions in Experiment 2

NV MidDS HighDS Mid High
Vision measures average sem average sem average sem average sem average sem
VA(logMAR)⬇ −0.03 0.02 0.34 0.03 0.59 0.04 0.34 0.03 0.63 0.03
VA (Snellen) (20/20) (20/42) (20/74) (20/46) (20/81)
CS (log)⬆ 1.8 0.02 1.82 0.02 1.78 0.02 1.58 0.02 1.46 0.02
Driving measures
Proportion Detected⬆ 1.00 0.00 0.99 0.01 0.99 0.01 0.99 0.01 0.90 0.00
Car Speed (KPH) 91.3 1.72 90.3 1.94 89.5 1.78 90.9 1.97 90.0 2.01
Reaction time (s) ⬇ 1.35 0.05 1.37 0.07 1.47 0.07 1.63 0.09 1.76 0.10
Deceleration (m/s2) ⬇ 3.34 0.13 3.30 0.16 3.53 0.16 3.88 0.20 3.98 0.23

⬆ Higher values mean better performance

⬇ Lower values mean better performance