Memory deficits are one of the most consistently observed cognitive effects of marijuana use.
There is evidence that some decrements attributable to the primary psychoactive ingredient,
delta-9-tetrahydrocannabinol (THC), may be attenuated by cannabidiol (CBD). This study will
help us learn more about the relationship between THC and CBD consumption with memory
processes. A combination of MRI and neuropsychological tests (which are computer and
paper/pencil tasks) will be used to measure the neurocognitive and behavioral impacts of THC
and CBD use.