Risky car following in abstinent users of MDMA

Elizabeth Dastrup, Monica N. Lees, Antoine Bechara, Jeffrey D. Dawson, Matthew Rizzo

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Ecstasy (MDMA) use raises concerns because of its association with risky driving. We evaluated driving performance and risk taking in abstinent recreational MDMA users in a simulated car following task that required continuous attention and vigilance. Drivers were asked to follow two car lengths behind a lead vehicle (LV). Three sinusoids generated unpredictable LV velocity changes. Drivers could mitigate risk by following further behind the erratic LV. From vehicle trajectory data we performed a Fourier analysis to derive measures of coherence, gain, and delay. These measures and headway distance were compared between the different groups. All MDMA drivers met coherence criteria indicating cooperation in the car following task. They matched periodic changes in LV velocity similar to controls (abstinent THC users, abstinent alcohol users, and non-drug users), militating against worse vigilance. While all participants traveled approximately 55 mph (89 kph), the MDMA drivers followed 64 m closer to the LV and demonstrated 1.04 s shorter delays to LV velocity changes than other driver groups. The simulated car following task safely discriminated between driving behavior in abstinent MDMA users and controls. Abstinent MDMA users do not perform worse than controls, but may assume extra risk. The control theory framework used in this study revealed behaviors that might not otherwise be evident.

Original languageEnglish (US)
Pages (from-to)867-873
Number of pages7
JournalAccident Analysis and Prevention
Volume42
Issue number3
DOIs
StatePublished - May 1 2010

Fingerprint

N-Methyl-3,4-methylenedioxyamphetamine
Railroad cars
Lead
driver
study behavior
Dronabinol
control theory
traffic behavior
Fourier Analysis
Risk-Taking
Drug Users
Fourier analysis
Control theory
Group
alcohol
Alcohols
Trajectories
performance

Keywords

  • Car following
  • Coherence
  • Ecstasy (MDMA)
  • Fourier analysis

ASJC Scopus subject areas

  • Human Factors and Ergonomics
  • Safety, Risk, Reliability and Quality
  • Public Health, Environmental and Occupational Health

Cite this

Risky car following in abstinent users of MDMA. / Dastrup, Elizabeth; Lees, Monica N.; Bechara, Antoine; Dawson, Jeffrey D.; Rizzo, Matthew.

In: Accident Analysis and Prevention, Vol. 42, No. 3, 01.05.2010, p. 867-873.

Research output: Contribution to journalArticle

Dastrup, Elizabeth ; Lees, Monica N. ; Bechara, Antoine ; Dawson, Jeffrey D. ; Rizzo, Matthew. / Risky car following in abstinent users of MDMA. In: Accident Analysis and Prevention. 2010 ; Vol. 42, No. 3. pp. 867-873.
@article{80518ac70d144a3896081bc18b703147,
title = "Risky car following in abstinent users of MDMA",
abstract = "Ecstasy (MDMA) use raises concerns because of its association with risky driving. We evaluated driving performance and risk taking in abstinent recreational MDMA users in a simulated car following task that required continuous attention and vigilance. Drivers were asked to follow two car lengths behind a lead vehicle (LV). Three sinusoids generated unpredictable LV velocity changes. Drivers could mitigate risk by following further behind the erratic LV. From vehicle trajectory data we performed a Fourier analysis to derive measures of coherence, gain, and delay. These measures and headway distance were compared between the different groups. All MDMA drivers met coherence criteria indicating cooperation in the car following task. They matched periodic changes in LV velocity similar to controls (abstinent THC users, abstinent alcohol users, and non-drug users), militating against worse vigilance. While all participants traveled approximately 55 mph (89 kph), the MDMA drivers followed 64 m closer to the LV and demonstrated 1.04 s shorter delays to LV velocity changes than other driver groups. The simulated car following task safely discriminated between driving behavior in abstinent MDMA users and controls. Abstinent MDMA users do not perform worse than controls, but may assume extra risk. The control theory framework used in this study revealed behaviors that might not otherwise be evident.",
keywords = "Car following, Coherence, Ecstasy (MDMA), Fourier analysis",
author = "Elizabeth Dastrup and Lees, {Monica N.} and Antoine Bechara and Dawson, {Jeffrey D.} and Matthew Rizzo",
year = "2010",
month = "5",
day = "1",
doi = "10.1016/j.aap.2009.04.015",
language = "English (US)",
volume = "42",
pages = "867--873",
journal = "Accident Analysis and Prevention",
issn = "0001-4575",
publisher = "Elsevier Limited",
number = "3",

}

TY - JOUR

T1 - Risky car following in abstinent users of MDMA

AU - Dastrup, Elizabeth

AU - Lees, Monica N.

AU - Bechara, Antoine

AU - Dawson, Jeffrey D.

AU - Rizzo, Matthew

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Ecstasy (MDMA) use raises concerns because of its association with risky driving. We evaluated driving performance and risk taking in abstinent recreational MDMA users in a simulated car following task that required continuous attention and vigilance. Drivers were asked to follow two car lengths behind a lead vehicle (LV). Three sinusoids generated unpredictable LV velocity changes. Drivers could mitigate risk by following further behind the erratic LV. From vehicle trajectory data we performed a Fourier analysis to derive measures of coherence, gain, and delay. These measures and headway distance were compared between the different groups. All MDMA drivers met coherence criteria indicating cooperation in the car following task. They matched periodic changes in LV velocity similar to controls (abstinent THC users, abstinent alcohol users, and non-drug users), militating against worse vigilance. While all participants traveled approximately 55 mph (89 kph), the MDMA drivers followed 64 m closer to the LV and demonstrated 1.04 s shorter delays to LV velocity changes than other driver groups. The simulated car following task safely discriminated between driving behavior in abstinent MDMA users and controls. Abstinent MDMA users do not perform worse than controls, but may assume extra risk. The control theory framework used in this study revealed behaviors that might not otherwise be evident.

AB - Ecstasy (MDMA) use raises concerns because of its association with risky driving. We evaluated driving performance and risk taking in abstinent recreational MDMA users in a simulated car following task that required continuous attention and vigilance. Drivers were asked to follow two car lengths behind a lead vehicle (LV). Three sinusoids generated unpredictable LV velocity changes. Drivers could mitigate risk by following further behind the erratic LV. From vehicle trajectory data we performed a Fourier analysis to derive measures of coherence, gain, and delay. These measures and headway distance were compared between the different groups. All MDMA drivers met coherence criteria indicating cooperation in the car following task. They matched periodic changes in LV velocity similar to controls (abstinent THC users, abstinent alcohol users, and non-drug users), militating against worse vigilance. While all participants traveled approximately 55 mph (89 kph), the MDMA drivers followed 64 m closer to the LV and demonstrated 1.04 s shorter delays to LV velocity changes than other driver groups. The simulated car following task safely discriminated between driving behavior in abstinent MDMA users and controls. Abstinent MDMA users do not perform worse than controls, but may assume extra risk. The control theory framework used in this study revealed behaviors that might not otherwise be evident.

KW - Car following

KW - Coherence

KW - Ecstasy (MDMA)

KW - Fourier analysis

UR - http://www.scopus.com/inward/record.url?scp=77950329481&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77950329481&partnerID=8YFLogxK

U2 - 10.1016/j.aap.2009.04.015

DO - 10.1016/j.aap.2009.04.015

M3 - Article

C2 - 20380914

AN - SCOPUS:77950329481

VL - 42

SP - 867

EP - 873

JO - Accident Analysis and Prevention

JF - Accident Analysis and Prevention

SN - 0001-4575

IS - 3

ER -