Effect of Marihuana and Alcohol on Visual Search Performance

Details

• Creators:
  Moskowitz, Herbert, 1925- ; Ziedman, Kenneth ; Sharma, S.
• Corporate Creators:
  University of California, Los Angeles. Computer Science Dept.
• Corporate Contributors:
  United States. National Highway Traffic Safety Administration
• Subject/TRT Terms:
  • Visual perception
  • Alcohol effects
  • Drug effects
  • Marijuana
  • Blood alcohol levels
  • Highway safety
  • Human subject testing
• Publication/ Report Number:
  DOT-HS-802-0252 ; UCLA-ENG-7615 ; NTIS-PB262133
• DOI:
  https://doi.org/10.21949/1524948
• Resource Type:
  Research Paper
• Geographical Coverage:
  United States
• Edition:
  Final report
• Corporate Publisher:
  United States. National Highway Traffic Safety Administration
• Abstract:
  Two experiments were performed to determine the effects of alcohol and marihuana on visual scanning patterns in a simulated driving situation. In the first experiment 27 male heavy drinkers were divided into 3 groups of 9, defined by three blood alcohol levels produced by alcohol treatment: 0.0%, 0.75%, and 0.15% BAC's. Significant changes in visual search behavior including increased dwell duration, decreased dwell frequency and increased pursuit duration and frequency were found under alcohol. In the second experiment 10 male social users of marihuana were tested under both 0 mcg and 200 mcg tetrahydrocannabinol per kilogram bodyweight. Marihuana was found to have no effect on visual search behavior. The results are related to previous studies of alcohol and marihuana effects on information processing. Implications for highway safety are discussed. /Abstract from report summary page/
• Format:
  PDF
• Funding:
  DOT-HS-150-3-668
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/1169/dot_1169_DS1.pdf
• File Type:
  [PDF - 6.68 MB]
• Collection(s):
  NHTSA - Behavioral Safety Research
• Main Document Checksum:
  urn:sha256:0321cedc9ad0f62fd40da2320a936164c0300e9578bd053721fa3464e1836369