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Effects of monoaminergic drugs on training-induced motor cortex plasticity in older adults.
Abstract Primary motor cortex (M1) plasticity is involved in motor learning and stroke motor recovery, and enhanced by increasing monoaminergic transmission. Age impacts these processes but there is a paucity of systematic studies on the effects of monoaminergic drugs in older adults. Here, in ten older adults (age 61+ 4 years, 4 males), we determine the effects of a single oral dose of carbidopa/levodopa (DOPA), d-amphetamine (AMPH), methylphenidate (MEPH) and placebo (PLAC) on M1 excitability and motor training-induced M1 plasticity. M1 plasticity is defined as training related long lasting changes in M1 excitab...
Source: Brain Research - June 17, 2017 Category: Neurology Authors: Kesar TM, Belagaje SR, Pergami P, Haut MW, Hobbs G, Buetefisch CM Tags: Brain Res Source Type: research