EVIDENCE LIBRARY
Browse source-supported forensic toxicology guides in this subject area.
Oct 20, 2026
Original n18 adult ADHD crossover: delayed word recall improved before CES-D adjustment, lost statistical significance afterward. Genuine nulls and forensic limits.
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A 40-adult randomized crossover trial found QbInattention improved with placebo and 20 mg methylphenidate; impulsivity drug-v-placebo was nonsignificant.
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A 60-man trial measured dexamphetamine and zolpidem in separated plasma. Some attention outcomes changed, but no blood-level prediction of individual impairment was shown.
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Original 40-man randomized CCAT trial: laboratory learning and gambling-task changes, null methamphetamine Stroop interaction, and limits for blood-drug and impairment claims.
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A 25-person methylphenidate placebo crossover improved number-memory accuracy, not eye scanning. No measured blood level or published driving outcome.
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A 44-man primary Simon-task study found cue-specific response interference and weaker conflict adaptation, not measured blood methamphetamine or DUI impairment.
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A 54-man methamphetamine abstinence fMRI study found MoCA and hippocampal connectivity differences, but no drug blood levels, driving test, or personal impairment validation.
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In 64 healthy adults, 200 mg oral modafinil improved demanding spatial memory, planning and delayed recognition, but not broad creativity. No blood assay or driving test.
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Original 76-man study: methamphetamine-use history changed optimal gambling choices and fitted mood weights, but not uncertainty choice or individual impairment.
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Primary 18-person forced-desynchrony trial: modafinil improved selected vigilance trajectories and reduced sleep epochs, but subjective sleepiness was unchanged.
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