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Tag: repetitive behavior

May 2011
News

Cognition and behavior: Brain volume signals repetitive behavior

by  /  10 May 2011

Smaller-than-normal volume in several brain regions, including a region involved in relaying motor signals, could be a marker for repetitive behavior in 3-year-old children, according to a study published 7 April in Autism Research.

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Opinion / Viewpoint

Promises and limitations of mouse models of autism

by  /  10 May 2011

Good mouse models of autism, and accurate tests to assay their phenotypes, are key to both narrowing down a cause and developing effective treatments, argues expert Jacqueline Crawley.

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News

Autism traits common among healthy people

by  /  9 May 2011

Two large studies published in the past two months have found that traits linked to autism are widely distributed in the general population. Although about 1 in 100 children is diagnosed with autism, up to 30 percent of people may have at least one of the traits associated with the disorder.

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April 2011
News

Autism candidate gene implicated in social deficits

by  /  28 April 2011

Mutations in a protein called GRIP1, important for the function of synapses — the junctions between neurons — may contribute to social deficits in autism, researchers reported 22 March in the Proceedings of the National Academy of Sciences.

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News

Analysis finds weak evidence for most autism treatments

by  /  25 April 2011

Only a small fraction of autism therapies are supported by robust scientific evidence, according to three reviews published in the May issue of Pediatrics.

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Opinion

An ape with ‘autism’

by  /  15 April 2011

Similarities between us and our closest ape relatives — chimpanzees and bonobos — have shaped our understanding of what it means to be human. The latest surprise is Teco, a young bonobo who shows behaviors that look suspiciously similar to those associated with autism.

8 Comments
News

Genetics: New autism mouse reveals candidate gene

by  /  6 April 2011

A new mouse model for autism has obsessive behaviors and is less social and emits fewer vocalizations than controls, according to a study published 17 March in Behavioral Brain Research. These features could be be the result of much higher levels of FAM46, a gene of unknown function that may be involved in signaling between cells.

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March 2011
News

New SHANK3 mouse shows autism-like features

by  /  21 March 2011

Researchers have created a mouse carrying a deletion in SHANK3, an autism candidate gene, they reported yesterday in Nature. This is the second model of SHANK3 mutations but shows markedly more behavioral and brain defects compared with the first.

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News

Studies implicate gut bacteria in autism

by  /  7 March 2011

Researchers are exploring the possibility that gastrointestinal bacteria may influence brain development and play a role in autism.

8 Comments
February 2011
News

New diagnostic criteria for autism fuel debate

by  /  28 February 2011

The new edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM) won’t be published for another two years, but changes proposed to the diagnostic criteria for autism are already sparking heated debate.

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