Neuropsychological Performance in Long-term Cannabis Users

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Neuropsychological performance in long-term cannabis users.

BACKGROUND Although cannabis is the most widely used illicit drug in the United States, its long-term cognitive effects remain inadequately studied. METHODS We recruited individuals aged 30 to 55 years in 3 groups: (1) 63 current heavy users who had smoked cannabis at least 5000 times in their lives and who were smoking daily at study entry; (2) 45 former heavy users who had also smoked at le...

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CONTEXT Cognitive impairments are associated with long-term cannabis use, but the parameters of use that contribute to impairments and the nature and endurance of cognitive dysfunction remain uncertain. OBJECTIVE To examine the effects of duration of cannabis use on specific areas of cognitive functioning among users seeking treatment for cannabis dependence. DESIGN, SETTING, AND PARTICIPAN...

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Persistent cannabis users show neuropsychological decline from childhood to midlife.

Recent reports show that fewer adolescents believe that regular cannabis use is harmful to health. Concomitantly, adolescents are initiating cannabis use at younger ages, and more adolescents are using cannabis on a daily basis. The purpose of the present study was to test the association between persistent cannabis use and neuropsychological decline and determine whether decline is concentrate...

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ژورنال

عنوان ژورنال: Archives of General Psychiatry

سال: 2001

ISSN: 0003-990X

DOI: 10.1001/archpsyc.58.10.909