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Study Reveals Cannabis Use Disrupts Memory Functions

3/23/2026

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WSU Researchers Discover Memory Disruption

Washington State University researchers found that cannabis use significantly disrupts memory systems.
The study involved 120 regular cannabis users tested after placebo or tetrahydrocannabinol (THC) across 21 memory measures.
Participants performed worse on 15 of 21 memory tests, with deficits in false memory and source memory.
They recalled words not presented and struggled to identify origins of learned information.
The findings raise concerns about cannabis use as legalization spreads.

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Wilson's Cannabis Findings

A University of Sydney study finds no significant benefits of medical cannabis for anxiety, depression, or PTSD.
Researchers analyzed 54 trials to assess mental health effects.
Dr. Jack Wilson of the University of Sydney notes some individuals may benefit, but results do not support routine use.
The study indicates cannabis could worsen cocaine-use disorder but shows promise for cannabis-use disorder and certain neurological conditions, though evidence remains low.

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WSU Researchers Discover Memory Disruption

Washington State University researchers found that cannabis use significantly disrupts memory systems.
The study involved 120 regular cannabis users tested after placebo or tetrahydrocannabinol (THC) across 21 memory measures.
Participants performed worse on 15 of 21 memory tests, with deficits in false memory and source memory.
They recalled words not presented and struggled to identify origins of learned information.
The findings raise concerns about cannabis use as legalization spreads.

1 / 2