Peer-reviewed article
Regulation of neural connectivity and oscillations by cannabinoids: A review.
Gianluca Lavanco, Valentina Castelli, Anna Brancato, Fulvio Plescia, Giovanni Marsicano et al. ·
Summary
Written by AI, not yet AICS's view · claude-haiku-4-5-20251001This is a neuroscience review article about how cannabinoids affect brain wave patterns and neural connectivity in the brain. It examines the mechanisms by which the endocannabinoid system regulates brain oscillations across different timescales, from acute effects to chronic changes and developmental periods. The review is focused on the biological mechanisms rather than child health outcomes or interventions for child well-being.
Key points
- The endocannabinoid system modulates brain oscillations through inhibitory circuit modulation and synaptic plasticity
- Cannabinoid effects vary across time scales: acute, chronic, developmental, and aging-related
- Developmental vulnerability exists during prenatal and adolescent periods
- Understanding oscillatory changes may improve development of cannabinoid-based therapeutics
- Knowledge gaps exist regarding cell-type-specific functions and links between oscillatory dysregulation and psychiatric symptoms
Limitations
This is a mechanistic neuroscience review focused on biological pathways rather than empirical evaluation of health outcomes in children. It does not provide evidence on whether cannabinoid exposure is beneficial or harmful for children's development or well-being.
Abstract
Brain oscillations represent frequency-specific neural phenomena essential for coordinating distributed brain activity and supporting cognition. The endocannabinoid system (ECS), particularly via cannabinoid receptor 1 (CB1R), plays a pivotal role in modulating neural oscillations through inhibitory circuit modulation, synaptic plasticity regulation, and long-range connectivity coordination. This review synthesizes current understanding of cannabinoid-oscillation interactions from a primarily mechanistic perspective, organized along a temporal framework: acute cannabinoid effects that directly engage CB1R-mediated circuit modulation; chronic adaptations that produce persistent oscillatory changes outlasting drug exposure; developmental vulnerability during prenatal and adolescent periods when cannabinoid exposure disrupts oscillatory circuit maturation; and aging-related ECS dysfunction in neurodegenerative conditions. Within this temporal structure, we examine specific cognitive domains and clinical conditions where mechanistic insights have translational relevance. Understanding the role of ECS as a modulator of oscillations will improve development of targeted cannabinoid-based therapeutics. We conclude by identifying critical knowledge gaps, including incomplete characterization of cell-type-specific CB1R functions and the mechanistic links between oscillatory dysregulation and specific psychiatric symptoms.