The need for speed: An investigation on the psychological dysfunction underlying risky driving behaviors in crystal methamphetamine users.

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Title: The need for speed: An investigation on the psychological dysfunction underlying risky driving behaviors in crystal methamphetamine users.
Authors: Love, Steven1 (AUTHOR) slove@usc.edu.au, Armstrong, Kerry1 (AUTHOR)
Source: Journal of Safety Research. Jun2026, Vol. 97, p395-405. 11p.
Subjects: Methamphetamine abuse, Drugged driving, Cognition disorders, Aggressive driving, Delusions, Traffic safety, Distracted driving, Road safety measures
Abstract: • Dependency, psychopathology, aberrant beliefs, and risky driving were linked. • Dependent users exhibited greater overall psychological and behavioural dysfunction. • DUI offenders scored higher in aberrant beliefs and aggressive driving behaviour. • Dependency indirectly predicted risky driving through its effects on psychology. • DUI frequency indirectly predicted dissociative driving via effects on aggression. Introduction: Crystal methamphetamine is an illicit substance known to be associated with psychological disorder, aggressive behavior, and a significantly increased crash risk. The primary aim of this study was to investigate the links between likely methamphetamine dependency, psychological dysfunctioning (i.e., thought disorganization, emotional impulsivity, psychopathology), aberrant beliefs (i.e., antisocial beliefs about anger, positive beliefs about driving under the influence of methamphetamines [DUIM]), and risky driving behaviors (i.e., DUIM, aggressive driving, dissociative driving). Method : To achieve this aim, an online questionnaire was advertised on social media and open to adult Australian users of crystal methamphetamine (N = 184). A series of independent t-tests showed that participants who met the criteria for likely methamphetamine dependence reported significantly higher levels of psychological distress, disorganized thinking, impulsivity, anger symptomology, DUIM, aggressive driving, and dissociative driving. Further, those who DUIM in the past month reported significantly higher aberrant beliefs and more frequent aggressive driving behavior, compared to those who did not. Results: Bivariate correlations and follow-up structural equation modeling showed that there were significant linear and hierarchical relationships between the variables. Of particular importance, likely methamphetamine dependence was shown to indirectly affect aggressive and dissociative driving behavior via the hierarchical effects it had towards psychological dysfunctioning, problematic attitudes, and DUIM frequency, which acted as mediators in this model. In addition, DUIM frequency was shown to indirectly affect dissociative driving behavior via the relationship it had with aggressive driving behavior. Conclusions and practical applications: This study has highlighted potential factors that underlie problematic methamphetamine use and associated aberrant driving behaviors. The findings can inform future road safety strategies, over and above traditional enforcement initiatives. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Safety Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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  Label: Title
  Group: Ti
  Data: The need for speed: An investigation on the psychological dysfunction underlying risky driving behaviors in crystal methamphetamine users.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Love%2C+Steven%22">Love, Steven</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> slove@usc.edu.au</i><br /><searchLink fieldCode="AR" term="%22Armstrong%2C+Kerry%22">Armstrong, Kerry</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Safety+Research%22">Journal of Safety Research</searchLink>. Jun2026, Vol. 97, p395-405. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Methamphetamine+abuse%22">Methamphetamine abuse</searchLink><br /><searchLink fieldCode="DE" term="%22Drugged+driving%22">Drugged driving</searchLink><br /><searchLink fieldCode="DE" term="%22Cognition+disorders%22">Cognition disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Aggressive+driving%22">Aggressive driving</searchLink><br /><searchLink fieldCode="DE" term="%22Delusions%22">Delusions</searchLink><br /><searchLink fieldCode="DE" term="%22Traffic+safety%22">Traffic safety</searchLink><br /><searchLink fieldCode="DE" term="%22Distracted+driving%22">Distracted driving</searchLink><br /><searchLink fieldCode="DE" term="%22Road+safety+measures%22">Road safety measures</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • Dependency, psychopathology, aberrant beliefs, and risky driving were linked. • Dependent users exhibited greater overall psychological and behavioural dysfunction. • DUI offenders scored higher in aberrant beliefs and aggressive driving behaviour. • Dependency indirectly predicted risky driving through its effects on psychology. • DUI frequency indirectly predicted dissociative driving via effects on aggression. Introduction: Crystal methamphetamine is an illicit substance known to be associated with psychological disorder, aggressive behavior, and a significantly increased crash risk. The primary aim of this study was to investigate the links between likely methamphetamine dependency, psychological dysfunctioning (i.e., thought disorganization, emotional impulsivity, psychopathology), aberrant beliefs (i.e., antisocial beliefs about anger, positive beliefs about driving under the influence of methamphetamines [DUIM]), and risky driving behaviors (i.e., DUIM, aggressive driving, dissociative driving). Method : To achieve this aim, an online questionnaire was advertised on social media and open to adult Australian users of crystal methamphetamine (N = 184). A series of independent t-tests showed that participants who met the criteria for likely methamphetamine dependence reported significantly higher levels of psychological distress, disorganized thinking, impulsivity, anger symptomology, DUIM, aggressive driving, and dissociative driving. Further, those who DUIM in the past month reported significantly higher aberrant beliefs and more frequent aggressive driving behavior, compared to those who did not. Results: Bivariate correlations and follow-up structural equation modeling showed that there were significant linear and hierarchical relationships between the variables. Of particular importance, likely methamphetamine dependence was shown to indirectly affect aggressive and dissociative driving behavior via the hierarchical effects it had towards psychological dysfunctioning, problematic attitudes, and DUIM frequency, which acted as mediators in this model. In addition, DUIM frequency was shown to indirectly affect dissociative driving behavior via the relationship it had with aggressive driving behavior. Conclusions and practical applications: This study has highlighted potential factors that underlie problematic methamphetamine use and associated aberrant driving behaviors. The findings can inform future road safety strategies, over and above traditional enforcement initiatives. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Safety Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jsr.2026.04.005
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 395
    Subjects:
      – SubjectFull: Methamphetamine abuse
        Type: general
      – SubjectFull: Drugged driving
        Type: general
      – SubjectFull: Cognition disorders
        Type: general
      – SubjectFull: Aggressive driving
        Type: general
      – SubjectFull: Delusions
        Type: general
      – SubjectFull: Traffic safety
        Type: general
      – SubjectFull: Distracted driving
        Type: general
      – SubjectFull: Road safety measures
        Type: general
    Titles:
      – TitleFull: The need for speed: An investigation on the psychological dysfunction underlying risky driving behaviors in crystal methamphetamine users.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Love, Steven
      – PersonEntity:
          Name:
            NameFull: Armstrong, Kerry
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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            – Type: issn-print
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              Value: 97
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            – TitleFull: Journal of Safety Research
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