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Memory, speed of thinking get worse over time with marijuana use

est measuring the ability to make decisions, long-term users had 70 percent impaired performance, compared to 55 percent impaired performance for shorter-term users and 8 percent impaired performance for non-users. In a test where participants needed to remember a list of words that had been read to them earlier, the non-users remembered an average of 12 out of 15 words, the shorter-term users remembered an average of nine words and the long-term users remembered an average of seven words.


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Contact: Robin Stinnett
rstinnett@aan.com
651-695-2763
American Academy of Neurology
13-Mar-2006


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