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Putative mechanisms underlying risky decision-making in high risk drivers
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wells, Samantha Ashley Brown, Thomas G. |
| Copyright Year | 2013 |
| Abstract | The Iowa Gambling Task (IGT) is a neuropsychological task that measures two types of decision-making: i) under risk, and ii) under ambiguity. Investigations using the IGT in groups of high risk drivers (HRDs) consisting of driving while impaired (DWI) offenders suggest that a deficit in decision-making under risk is present in HRDs. However, the IGT may be measuring broader cognitive dimensions other than decision-making. Validation of these findings is needed with more direct measurement of decision-making under risk in a more representative sample of HRDs. It is hypothesized that: 1. HRDs will perform worse than Controls (CTLs) on a task that measures decision-making under risk alone, the Game of Dice Task (GDT); and 2. Decision-making under risk via the IGT will be significantly associated to the GDT. In preliminary analyses, HRDs did not differ from CTLs in their scores for decision-making under risk on the IGT or the GDT. Additionally, scores on the IGT were not significantly correlated to scores on GDT. Exploratory analyses after dividing HRDs according to DWI involvement were done. Results suggest that HRDs who have not been convicted of DWI perform better on the IGT and GDT compared to CTLs and HRDs who have been convicted of DWI, who are comparable. Preliminary findings do not support hypotheses. Given the heterogeneity of HRDs in this study, investigation of HRDs based on DWI involvement may better elucidate the role, if any, that decision-making plays in HRD. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.icadtsinternational.com/files/documents/2013_133.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
