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Rev. med. nucl. Alasbimn j ; 11(43)jan. 2009. ilus, tab, graf
Article in Spanish | LILACS | ID: lil-522188

ABSTRACT

El presente estudio explora el efecto de la marihuana en una población de jóvenes adolescentes escolares, que sólo consumen esta droga ilícita y no otra, y que jamás han consultado a un especialista por problemas de adicción. Los resultados muestran el efecto del consumo habitual de marihuana en funciones cognitivas involucradas en el aprendizaje. Una vez identificados los sujetos, se realizan evaluaciones individuales de estudiantes consumidores y no consumidores de educación media de establecimientos de dependencia municipal, particular subvencionada y particular pagada del Area Metropolitana (Santiago de Chile). Se evidencian efectos nocivos sobre la memoria inmediata, atención-concentración y estrategias de ejecución en los consumidores, con diferencias estadísticamente significativas respecto al grupo control. Se constata mayor consumo relativo en colegios pertenecientes a sectores marginales y escasa o inexistente percepción de daño asociado al consumo de la droga, especialmente entre los consumidores habituales. Las niñas tienden a igualar los niveles de consumo de los varones.


This study evaluates the effects of marihuana in a population of 14 to 17 year old secondary school students, who consume exclusively this illegal drug, and who have never consulted a specialist for addiction problems. The results show the effects of habitual consumption of marihuana on cognitive functions involved in the learning process. Once the subjects have been identified, individual evaluations are performed on students who consume and who do not consume marihuana in public, subsidized public, and private schools of Santiago, Chile. Harmful effects are detected on immediate memory, attention-concentration and execution strategies in consumers, with statistically significant differences in comparison to the control group. Higher consumption is found in schools in poorer districts. There is impaired perception of harm associated with the consumption of the drug especially among habitual consumers. Girls tend to consume the same amount as boys.


Subject(s)
Humans , Male , Female , Adolescent , Adolescent Behavior/psychology , Marijuana Smoking/adverse effects , Cognition Disorders/physiopathology , Cognition Disorders/chemically induced , Social Support , Cannabis/adverse effects , Chile/epidemiology , Surveys and Questionnaires , Sex Distribution , Students/psychology , Socioeconomic Factors , Risk Factors , Marijuana Smoking/epidemiology , Motivation , Perception , Cognition Disorders/psychology
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