Association between increased EEG signal complexity and cannabis dependence

Both acute and regular cannabis use affects the functioning of the brain. While several studies have demonstrated that regular cannabis use can impair the capacity to synchronize neural assemblies during specific tasks, less is known about spontaneous brain activity. This can be explored by measuring EEG complexity, which reflects the spontaneous variability of human brain activity. A recent study has shown that acute cannabis use can affect that complexity. Since the characteristics of cannabis use can affect the impact on brain functioning, this study sets out to measure EEG complexity in regular cannabis users with or without dependence, in comparison with healthy controls.

Source: European Neuropsychopharmacology - November 10, 2017 Category: Psychiatry & Psychology Authors: Vincent Laprevote, Laura Bon, Julien Krieg, Thomas Schwitzer, St éphanie Bourion-Bedes, Louis Maillard, Raymund Schwan Source Type: research