Research Article
Impact of External Cue Validity on Driving Performance in Parkinson's Disease
Table 3
Correlations between driving performance variables and Trail Making Test scores (part B and B-A).
| Driving performance measures | Trails B | Trails B-A | PD | Control | PD | Control |
| Valid Cues | .288 | .581** | .197 | .379 | Braking Point (m) |
| Invalid Cues | .606** | .592** | .524* | .435 | Braking Point (m) |
| No Cues | −.152 | .373 | −.163 | .211 | Braking Point (m) |
| Valid Cues | −.092 | −.541* | −.014 | −.357 | Deceleration to Brake | Point Distance (m) |
| Invalid Cues | −.399 | −.432 | −.337 | −.281 | Deceleration to Brake | Point Distance (m) |
| No Cues | .414 | −.215 | .351 | −.071 | Deceleration to Brake | Point Distance (m) |
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*Sig 0.05. **Sig 0.01.
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