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CEO North America > CEO Life > Health > Munchies and memory deficits

Munchies and memory deficits

in Editor´s Choice, Health
- Munchies and memory deficits
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Estudios recientes revelan los efectos secundarios del consumo de cannabis.

Las personas que han consumido cannabis recientemente pueden tener más probabilidades de experimentar déficits de memoria o dificultades con la función cognitiva que aquellas que no consumen la droga, sugiere un estudio reciente publicado por el Journal of Psychiatry and Neuroscience .

Los investigadores entrevistaron a 1.121 adultos entre 22 y 36 años sobre su historial de consumo de drogas y también analizaron la orina de los participantes en busca de evidencia de cannabis y otras sustancias. Posteriormente, los participantes completaron evaluaciones neuropsicológicas, que evalúan aspectos como la memoria, la atención, la velocidad de procesamiento, la función ejecutiva y las habilidades motoras.

Consecuencias cognitivas

A total of 135 people, or 12%, had positive urine screens for tetrahydrocannabinol (THC), the chemical associated with cannabis’s psychoactive effects, suggesting they had used the drug within the past week. People who tested positive for THC scored worse on tests of so-called episodic memory and of mental processing speed, the study found. None of the other brain functions showed a difference.

“This has implications for all canna- bis users, but especially medical canna- bis users who may be consuming daily or multiple times daily for symptom management,” said James MacKillop, senior author of the study and a researcher at McMaster University in Hamilton, Ontario. “These individuals would likely have THC chronically circulating in their system and, in turn, cognitive consequences. This applies to heavy re- creational users who are consuming daily, too, of course.”

The findings also suggest that people in high-stakes professions that require split-second decisions like police officers or air traffic controllers might be impaired on the job even when they limit marijuana use to their time off. “Some cognitive consequences are present as long as THC is still detectable in urine,” MacKillop said. “Although the effects were very small, any (reduction) in performance may have significant consequences in a critical situation.”

Cannabis is one of the most commonly used psychoactive drugs in the world; an estimated 2.5% of the world’s population has reported cannabis use in the past year, the study notes. Four-hundred-and-eighty-two participants, or 43%, had never used cannabis. Another 317 people, or 28%, had only tried cannabis up to 10 times, while 139 people, or 12%, used cannabis between 11 and 100 times. A total of 109 people, or 9.7%, had current or previous cannabis use disorder, which includes chronic use of the drug. This condition was associated with lower fluid intelligence and cognitive functioning.

Impaired and at risk

One limitation of the study is that the differences in neuropsychological performance associated with cannabis use were small, even though they were statistically meaningful. Still, cannabis users might have short-term impairments that aren’t easy to spot but could still be dangerous in certain situations, said Mary-Ann Fitzcharles, a researcher at McGill University, in Montreal, who wasn’t involved in the study. That’s because the deficits aren’t verbal; they re- late more to visual and spatial skills.

“La memoria episódica y la velocidad de procesamiento se evaluaron mediante pruebas visuales, en lugar de una evaluación escrita / verbal”, dijo Fitzcharles por correo electrónico. “Por lo tanto, la discapacidad se evalúa como en el dominio visuoespacial que no es fácilmente percibido como una discapacidad por un individuo. Por ejemplo, las personas pueden creer que son perfectamente competentes para conducir un automóvil, operar una grúa o responder rápidamente en una situación inesperada después del consumo de cannabis, pero de hecho están discapacitados y en riesgo “.

- Munchies and memory deficits

Tags: Cannabis useCEOCEO NorthamJournal of Psychiatry and NeuroscienceMarihuanamarijuana

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