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Reward Affects Motor Function in Rett
Published January 10, 2014
in Simons Foundation Autism Research Institute
The motor problems seen in Rett syndrome may be the result of deficits in a pathway that mediates reward in the striatum, a brain region that coordinates movement, according to a study published in Brain Structure and Function. Studies have shown that loss of MeCP2 in the front of the brain is sufficient to lead to Rett-like symptoms in mice. The forebrain includes the striatum, which integrates information from other brain regions to help plan and coordinate movement. The new study found that mice that model Rett syndrome have significantly less dopamine a chemical messenger that mediates reward in the striatum than controls do. The study suggests that changes in dopamine levels influence neural circuits in the striatum that regulate motor function.
Filed under: Autism News, Autism Research, Autism Science, featured, Mice Study, Rett Syndrome