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In Brief

  • Cognition and behavior: Serotonin may alter emotion response
    15 August 2012
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    Lowering blood levels of the amino acid tryptophan, a precursor to the chemical messenger serotonin, changes how the autism brain responds to emotions, according to a report published 4 June in PLoS One.

  • Genetics: FOXG1 mutations underlie atypical Rett syndrome
    14 August 2012
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    Seven individuals who have the symptoms of Rett syndrome carry a genetic disruption near, or overlapping with, the FOXG1 gene, according to a report published 27 June in the European Journal of Human Genetics.

  • 10 August 2012
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    Experiencing a stressful event during pregnancy does not increase the risk of having a child with autism, according to an epidemiological study published 13 June in PLoS One.

  • Molecular mechanisms: Study links RAS pathway to autism
    8 August 2012
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    An autism-linked mutation in the signaling protein EPAC2 alters the shape of neuronal branches, according to a study published in the June issue of PLoS Biology.

  • Cognition and behavior: Connectivity deficits link autism, TSC
    7 August 2012
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    Abnormalities in the connections between language-related brain regions are similar in people with autism and those with tuberous sclerosis, a genetic disorder characterized by benign tumors throughout the brain and body, according to a paper published 1 June in Cerebral Cortex.