Tag: brain size

February 2013
News

Twin study suggests large head size runs in autism families

by  /  14 February 2013

Children with autism and their unaffected twins have heads that are significantly larger than average, according to a study published 16 January in the Journal of Autism and Developmental Disorders.

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December 2012
News

Clinical research: Larger brains in autism, fragile X

by  /  19 December 2012

Young boys with fragile X syndrome or autism have larger brains overall than controls do, but the two groups show enlargement of different parts of the brain, according to an imaging study published in September in the Journal of the American Academy of Child and Adolescent Psychiatry.

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News / Toolbox

Precocious piglets may model neurological disorders

by  /  12 December 2012

The brains of newborn pigs are similar in shape and mature at the same rate as those of human infants. That makes piglets a good model for studying neurological disorders, according to a study published in the November issue of The Journal of Nutrition.

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Opinion / Viewpoint

Perspective: Imaging autism

by  /  6 December 2012

Several studies in the past two years have claimed that brain scans can diagnose autism, but this assertion is deeply flawed, says Nicholas Lange.

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News

Genetics: 22q11.2 deletion symptoms cluster into two groups

by  /  4 December 2012

Children with a deletion in the 22q11.2 chromosomal region have one of two distinct sets of symptoms, and only one of those is associated with autism, according to a study published 28 August in Research in Developmental Disabilities.

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News

Birth weight predicts brain size later in life, study says

by  /  3 December 2012

Heavier newborns have larger brains later in life, and a larger cerebral cortex — the brain region responsible for high-level functions such as consciousness and language. The findings, published 19 November in the Proceedings of the National Academy of Sciences, are the first to assess birth weight’s connection to brain development.

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October 2012
News

Molecular mechanisms: Immune molecule boosts brain size

by  /  23 October 2012

Mice with elevated levels of the immune molecule interleukin-6 have abnormally large brains, according to a study published 23 August in the International Journal of Neuroscience.

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July 2012
News

Maternal antibodies may affect brain size in autism

by  /  12 July 2012

The action of certain maternal antibodies on the fetal brain may underlie the large brain size seen in some children with autism, according to preliminary findings from both monkey and human studies presented at a conference in Boston last week.

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May 2012
News

Autism gene PTEN plays vital role in neural stem cells

by  /  31 May 2012

Knocking out an autism-linked gene called PTEN only in neural stem cells of the hippocampus, a brain region central to learning and memory, throws the development of new neurons off course in adult mice, according to research published last month in the Journal of Neuroscience.

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News

Fish study links chromosome 16 genes to head size

by  /  17 May 2012

By creating genetically engineered fish, two independent groups have identified genes in an autism hotspot on chromosome 16 that influence head size and brain development. 

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