Seeing through the smoke: Human and animal studies of cannabis use and endocannabinoid signalling in corticolimbic networks

Mason M. Silveira, Jonathon C. Arnold, Steven R. Laviolette, Cecilia J. Hillard, Marta Celorrio, María S. Aymerich, Wendy K. Adams

Research output: Contribution to journalReview articlepeer-review

23 Scopus citations


Public opinion surrounding the recreational use and therapeutic potential of cannabis is shifting. This review describes new work examining the behavioural and neural effects of cannabis and the endocannabinoid system, highlighting key regions within corticolimbic brain circuits. First, we consider the role of human genetic factors and cannabis strain chemotypic differences in contributing to interindividual variation in the response to cannabinoids, such as THC, and review studies demonstrating that THC-induced impairments in decision-making processes are mediated by actions at prefrontal CB1 receptors. We further describe evidence that signalling through prefrontal or ventral hippocampal CB1 receptors modulates mesolimbic dopamine activity, aberrations of which may contribute to emotional processing deficits in schizophrenia. Lastly, we review studies suggesting that endocannabinoid tone in the amygdala is a critical regulator of anxiety, and report new data showing that FAAH activity is integral to this response. Together, these findings underscore the importance of cannabinoid signalling in the regulation of cognitive and affective behaviours, and encourage further research given their social, political, and therapeutic implications.

Original languageEnglish
Pages (from-to)380-395
Number of pages16
JournalNeuroscience and Biobehavioral Reviews
StatePublished - May 2017


  • AEA
  • Amygdala
  • Anxiety
  • CB receptor
  • Cannabidiol
  • Cannabis
  • Corticolimbic circuits
  • Decision-making
  • Elevated plus maze
  • Emotional salience processing
  • Endocannabinoid system
  • FAAH
  • Hippocampus
  • Individual differences
  • Mesolimbic dopamine system
  • Phytocannabinoids
  • Prefrontal cortex
  • Psychiatric disorders
  • Social interaction
  • THC


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