Table 3.
Pearson correlation coefficients indicating relationship between tests of cognitive function and simulated driving outcomes for the DLB group.
| Variable | Rater score r (p) |
Errors in the simulator r (p) |
Number of crashes r (p) |
Total number of traffic light tickets r (p) |
Number of speed exceedances r (p) |
Over the speed limit percent of time r (p) |
Total number of centerline crossings r (p) |
Total number of road edge excursions r (p) |
Out of lane percent of time r (p) |
|---|---|---|---|---|---|---|---|---|---|
| Mini-Mental State Exam (MMSE) | −.622 (.013) | −.529 (.043) | −.329 (.230) | −.484 (.067) | .095 (.736) | −.656 (.008) | −.430 (.110) | −.487 (.066) | −.792 (<.001) |
|
| |||||||||
| Dementia Rating Scale (DRS) | −.445 (.096) | .055 (.846) | −.347 (.205) | −.309 (.263) | .092 (.744) | −.107 (.704) | −.300 (.277) | .182 (.516) | −.159 (.571) |
|
| |||||||||
| Visual Object and Space Perception (VOSP) Test, object | −.050 (.859) | −.162 (.563) | −.280 (.313) | −.076 (.787) | .047 (.869) | −.030 (.915) | −.227 (.415) | .037 (.895) | −.267 (.336) |
|
| |||||||||
| Visual Object and Space Perception (VOSP) Test, space | −.624 (.013) | −.113 (.689) | −.385 (.157) | −.332 (.226) | .000 (1.000) | −.192 (.493) | −.310 (.261) | .048 (.864) | −.097 (.731) |
|
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| Test of Everyday Attention (TEA), visual selection | −.308 (.264) | −.325 (.238) | −.040 (.888) | −.125 (.658) | −.074 (.793) | −.319 (.246) | −.067 (.813) | −.537 (.039) | −.315 (.253) |
|
| |||||||||
| Test of Everyday Attention (TEA), sustained attention | −.192 (.493) | .059 (.835) | −.177 (.528) | −.111 (.694) | −.109 (.700) | .255 (.358) | −.078 (.783) | .276 (.319) | .148 (.598) |
|
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| Test of Everyday attention (TEA), switching attention | −.096 (.732) | .144 (.609) | .029 (.918) | −.017 (.952) | −.027 (.923) | −.301 (.276) | −.028 (.922) | .339 (.217) | .039 (.890) |
|
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| Useful Field of View (UFOV), processing speed | .548 (.034) | .427 (.113) | −.453 (.090) | .280 (.312) | .344 (.210) | .256 (.357) | .321 (.243) | .221 (.428) | .256 (.357) |
|
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| Useful Field of View (UFOV), divided attention | .510 (.052) | .463 (.082) | .207 (.460) | .301 (.275) | .401 (.138) | .410 (.129) | .242 (.386) | .338 (.218) | .410 (.129) |
|
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| Useful Field of View (UFOV), selective attention | .481 (.069) | .507 (.053) | .358 (.190) | .250 (.369) | .588 (.021) | .240 (.389) | .361 (.186) | .287 (.301) | .240 (.389) |