Study Pinpoints Effects of Different Doses of an ADHD Drug; Finds Higher Doses May Harm Learning
[Source: Science Daily.com]
New research with monkeys sheds light on how the drug methylphenidate may affect learning and memory in children with attention deficit hyperactivity disorder.
The results parallel a 1977 finding that a low dose of the drug boosted cognitive performance of children with ADHD, but a higher dose that reduced their hyperactivity also impaired their performance on a memory test.
“Many people were intrigued by that result, but their attempts to repeat the study did not yield clear-cut results,” says Luis Populin, an associate professor of neuroscience at the University of Wisconsin-Madison School of Medicine and Public Health.
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