Effects of marijuana on cognition: a review form the neurobiological perspective


  • Gladys Torres Colegio San Ignacio de Recalde, Organización San Ignacio de Loyola. Lima, Perú. Facultad de Medicina, Universidad Nacional Mayor de San Marcos. Lima, Perú. Bióloga.
  • Fabián Fiestas Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia. Lima, Perú. médico epidemiólogo.




Marijuana abuse, Cognition, Behavior, Memory, Neurobiology


Marijuana is one of the most commonly used psychoactive substances in society, mainly among youths. Its use has been consistently associated with several health problems, many of which have in common an impairment in the cognitive processes of behavior, including the memory, attention, emotion and decision making. There is evidence suggesting that cannabinoids, marijuana´s primary psychoactive substance, have a negative effect in short-term memory, working memory, and decision making. It has also been found that cannabinoids affect attention and the interaction between cognitive events and emotion. This information can be used as an argument of biological plausibility to assess clinical and epidemiological research findings that show that marijuana`s use is associated to problems such as traffic accidents, psychosis, depression and poor academic records, among others.


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How to Cite

Torres G, Fiestas F. Effects of marijuana on cognition: a review form the neurobiological perspective. Rev Peru Med Exp Salud Publica [Internet]. 2014 Jan. 30 [cited 2024 May 29];29(1). Available from: https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/319

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