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Marijuana use associated with worse verbal learning and delayed recall in a sample of young adults / El consumo de marihuana se asocia a una menor capacidad de aprendizaje verbal y memoria tardía en adultos jóvenes
Laspada, Natalia; Delker, Erin; Blanco, Estela; Encina, Pamela; Caballero, Gabriela; Delva, Jorge; Burrows, Raquel; Lozoff, Betsy; Gahagan, Sheila.
  • Laspada, Natalia; University of California. Division of Child Development and Community Health. Department of Pediatrics. La Jolla. US
  • Delker, Erin; University of California. Division of Child Development and Community Health. Department of Pediatrics. La Jolla. US
  • Blanco, Estela; University of California. Division of Child Development and Community Health. Department of Pediatrics. La Jolla. US
  • Encina, Pamela; Unversidad de Chile. Institute of Nutrition and Food Technology. Santiago. CL
  • Caballero, Gabriela; Unversidad de Chile. Institute of Nutrition and Food Technology. Santiago. CL
  • Delva, Jorge; Boston University. School of Social Work. Boston. US
  • Burrows, Raquel; Unversidad de Chile. Institute of Nutrition and Food Technology. Santiago. CL
  • Lozoff, Betsy; University of Michigan. Center for Human Growth and Development. Ann Arbor. US
  • Gahagan, Sheila; University of California. Division of Child Development and Community Health. Department of Pediatrics. La Jolla. US
Rev. méd. Chile ; 147(2): 206-211, Feb. 2019. tab
Article in English | LILACS | ID: biblio-1043153
ABSTRACT
ABSTRACT Background: There is concern about the cognitive consequences of marijuana consumption. Aim: To assess the influence of current and past marijuana use and frequency on verbal learning and memory in a sample of adults aged 21 years old. Material and Methods: Marijuana use was assessed using a clinician administered interview in 654 participants (56% females), who reported frequency of use, age of first use and whether its use led to problems in their lives. The CogState International Shopping List was administered to assess learning and memory. Results: Seventy percent reported ever using marijuana, 46% consuming during the past year and 27% during the past 30 days. The latter scored significantly lower on delayed recall. Current and frequent use were significantly associated with lower accuracy in verbal learning and memory. Conclusions: In this cohort of adults aged 21 years old, marijuana use was prevalent and related to worse verbal memory.
RESUMO
Antecedentes: Existe preocupación acerca de los efectos cognitivos del consumo de marihuana. Objetivo: Estudiar el efecto de consumo de marihuana presente o pasado en la capacidad de aprendizaje verbal y memoria en una muestra de adultos de 21 años. Material y Métodos: El consumo de marihuana fue evaluado mediante una entrevista médica en 654 adultos de 21 años (56% mujeres), quienes informaron acerca de la frecuencia de consumo, edad de comienzo y si el consumo les ha causado problemas en sus vidas. Se les administró el Cogstate International Shopping List para evaluar aprendizaje y memoria. Resultados: El 70% informó haber consumido marihuana alguna vez, 46% la usó durante el último año y el 27% en los últimos 30 días. Estos últimos tuvieron un menor puntaje en memoria tardía. El consumo actual y frecuente se asoció a una menor precisión en la capacidad de aprendizaje verbal y memoria. Conclusiones: En esta cohorte de adultos de 21 años, el consumo de marihuana fue prevalente y relacionado a una menor memoria verbal.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Mental Recall / Verbal Learning / Cannabinoids / Marijuana Use / Memory Type of study: Etiology study / Observational study / Prevalence study / Risk factors Limits: Female / Humans / Male Country/Region as subject: South America / Chile Language: English Journal: Rev. méd. Chile Journal subject: Medicine Year: 2019 Type: Article Affiliation country: Chile / United States Institution/Affiliation country: Boston University/US / University of California/US / University of Michigan/US / Unversidad de Chile/CL

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Full text: Available Index: LILACS (Americas) Main subject: Mental Recall / Verbal Learning / Cannabinoids / Marijuana Use / Memory Type of study: Etiology study / Observational study / Prevalence study / Risk factors Limits: Female / Humans / Male Country/Region as subject: South America / Chile Language: English Journal: Rev. méd. Chile Journal subject: Medicine Year: 2019 Type: Article Affiliation country: Chile / United States Institution/Affiliation country: Boston University/US / University of California/US / University of Michigan/US / Unversidad de Chile/CL