Impaired speed of visual information processing in marijuana intoxication

  • Braff D
  • Silverton L
  • Saccuzzo D
 et al. 
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The authors conducted a double-blin crossover study to investigate the effects of myrijuana on visual information processing. The authors used a tachistoscopic pradigm, and the results show no marijuana effect on the critical stimulus duration, a measure of stimulus intake. The visual backward masking data are compatible with a marijuana-induced slowness of information processing from labile unonscious iconic mamory to more permanent memory processes. These results are discussed in relation to reports of marijuana's effects on perception and early information processing.

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  • D. L. Braff

  • L. Silverton

  • D. P. Saccuzzo

  • D. S. Janowsky

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