Cognitive motor deficits in cannabis users

- Exposure to cannabis has significant effects on cortico-striatal networks.
- These networks are also essential for motor learning and control.
- The few existing studies suggest motor performance deficits in cannabis users.
- There is a gap in the literature on the effects of cannabis on motor learning.

Cannabis use affects cortico-striatal networks that are essential for producing movement. In this review, we summarize the literature on motor system dysfunction in cannabis users and provide a rationale for why motor learning should be considered an important area in cannabis research. A majority of studies have addressed cognitive impairments in cannabis users and some have focused on driving performance, motor impulsivity, and motor inhibition. Our review of the literature has found that cannabis use is associated with motor performance impairments; however, there is a gap in the literature regarding impairments in motor learning. The involvement of the cortico-striatal network in both cannabis addiction and movement also suggests potential avenues for treatment and rehabilitation via the motor system.