Resumo

CASTELBLANCO-MONTANEZ, Ivone A.; PENA-MALDONADO, Katherine  e  MORENO-DURAN, Carmen H.. Variation in the electrical activity of the prefrontal, frontal and temporal cortex in Cannabis users. Actu Biol [online]. 2017, vol.39, n.106, pp.60-70. ISSN 0304-3584.  https://doi.org/10.17533/udea.acbi.v39n106a06.

This research assessed the variation in the electrical activity of the prefrontal, frontal and temporal on the cerebral cortex in EEG records from college Cannabis-user residents in Bogota, during and in the absence of Cannabis use, contrasted with a control population of non-users. It was evident that the effects of Cannabis in brain electrical activity during the consume cause the increase of alpha activity, indicating states of relax and low concentration; also, an increase in beta activity, related to the reception of different stimulus and decrease of delta activity generated by the rewarding after the use. In the absence of consumption, delta waves increasing in comparison with the control group, waves associated with anxiety states. Furthermore, it was noticed that the prolonged and frequent use of this substance generates tolerance, without variation in brain activity during and in the absence of Cannabis use. In the same way, the presence in a greater proportion of theta waves in the absence of consumption compared to nonusers, suggesting that after the prolonged use of the substance consumers tend to manifest constant sleepiness and drowsiness.

Palavras-chave : Brain electrical activity; Bogotá; Cannabis; tolerance; university consumers.

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