Navigation Links
Heightened level of amygdala activity may cause social deficits in autism
Date:3/19/2009

Something strange is going on in the amygdala an almond-shaped structure deep in the human brain among people with autism.

Researchers at the University of Washington have discovered an increased pattern of brain activity in the amygdalas of adults with autism that may be linked to the social deficits that typically are associated with the disorder. Previous research at the UW and elsewhere has shown that abnormal growth patterns in the amygdala are commonly found among young children diagnosed with autism.

The amygdala is popularly associated with the "fight-or-flight response" in dangerous situations. But it has other functions, including identifying faces and situations and evaluating social information such as emotions.

The new research shows that brain activation in adults with autism remains elevated long after similar brain regions of typically developed adults have stopped being activated when exposed to a series of pictures of human faces. A decrease in activation over time to the same type of information is called neural habituation and is connected with learning, according to Natalia Kleinhans, lead author of the new study and a UW research assistant professor of radiology.

"What we are seeing is hyperexcitability or overarousal of the amygdala, which suggests that neurons in the amygdala are firing more than expected," said Kleinhans, who is associated with the UW Autism Center.

"If you consider that habituation reflects learning in as simple a task as looking at a face, slowness to habituate in people with autism may contribute even more markedly to difficulty with more complex social interactions and social cognition. If the brain is not reacting typically to a static face with a neutral expression, you can imagine how difficult it may be for someone with autism to pick up more subtle social cues."

The National Institute of Child Health and Human Development and the National Institute
'/>"/>

Contact: Joel Schwarz
joels@u.washington.edu
206-543-2580
University of Washington
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Pre-diabetics face heightened risk of heart disease
2. To Further Combat Internet Fraud, Heightened Security Levels are Implemented by Vetted International
3. Older Patients With Cancer at Heightened Suicide Risk
4. Global Warming Linked to Heightened Kidney Stone Risk
5. High Meat Consumption Linked to Heightened Cancer Risk
6. The American Liver Foundation Encourages Heightened Awareness of Hepatitis B and C in Light of Recent Events in the News
7. Cleveland Clinic First To Perform Nephrectomy Completely Transvaginally
8. Unmarried Childbirths in U.S. Reach Record Levels
9. Cleveland Conference: Quality Healthcare Can and Should Cost Less
10. New Study Finds PFOA Levels in Drinking Water Are Safe
11. AIDS Walk New York and Gay Mens Health Crisis Announce Record Corporate Sponsorship Levels
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... the United States, it may come as a surprise that ... food due to lack of money or other financial resources. ... University of Illinois using data from the National Health and ... dealing with hunger are also facing negative health and nutrition ... age 60 faced the threat of hungerthat translates to 4.8 ...
(Date:4/23/2014)... journal Oncotarget , explored tumour heterogeneity ... own DNA signatures within the same cancer. Such ... targeted treatment strategies. , Firstly they confirmed the ... the KRAS or BRAF mutation. Secondly, they found ... mutation have that specific mutation present uniformly throughout ...
(Date:4/22/2014)... visited the New Jersey Institute of Technology (NJIT) ... for the launch of the New Jersey Innovation ... new model for business innovation through the leveraging ... investment. U.S. Senator Cory Booker, Panasonic Corp. of ... Jersey Lieutenant Governor Kim Guadagno, New Jersey Secretary ...
(Date:4/22/2014)... 15 percent of all lung cancers are small ... often develop resistance to chemotherapy. However, researchers at ... new insights into the mechanisms leading to this ... , Chemotherapies work primarily by mediating B-cell lymphoma ... regulating cell death. Depending on their function, this ...
(Date:4/22/2014)... NY, April 22, 2014Hemoglobin A1c is the standard measurement ... diabetes. Blood levels of A1c are typically measured every ... developed a data-based model that accurately estimates A1c using ... Diabetes Technology & Therapeutics ( DTT ), a ... article is available free on the DTT ...
Breaking Medicine News(10 mins):Health News:More Americans in their golden years are going hungry 2Health News:Non-uniform genetic mutations identified in lung cancers could lead to targeted treatment 2Health News:Government and industry leaders herald launch of NJIT's New Jersey Innovation Institute 2Health News:Scientists pinpoint protein that could improve small cell lung cancer therapies 2
... HAVEN, Conn., May 29 ... today announced that an analysis of clinical data of ... myeloid leukemia (AML) would be presented in a poster ... Annual Meeting in Orlando, Florida.The poster (Abstract #7050) entitled ...
... Minimally Invasive Spine Surgery Provides Better Diagnosis and Treatment ... Kenneth L. Reed, M.D. performed the first revolutionary ... to treat acute and chronic back pain ... physicians are the only doctors performing the procedure in ...
... available for incontinence nowadays, an effective and easy solution ... incontinence. The main roadblock to that solution might just ... his condition. Dr. Peter Muench of Delaware Urologic Associates ... advises patients that full disclosure is the best policy ...
... Scottish Widows paid over £28m in critical illness cover claims between November ... due to non-disclosure, The three main reasons for claims - cancer, heart ... ... Scottish Widows, one of the most trusted brands in life insurance ...
... in a Series of Community Discussions on Improving Access ... Teva Pharmaceuticals USA, the leading generic pharmaceutical company, ... roundtables as part of their Year of Affordable Healthcare ... at the YMCA San Francisco, aimed at raising awareness ...
... balloon also floated by President Clinton in 1993 to pay ... comes to finding a way to finance government-run health care, ... balloon echoing that of President Bill Clinton in 1993.The Obama ... spokesman for Obama Budget Director Peter Orszag, who was quoted ...
Cached Medicine News:Health News:Vion Pharmaceuticals to Present Data on Onrigin(TM)at the ASCO(R) Annual Meeting 2Health News:Vion Pharmaceuticals to Present Data on Onrigin(TM)at the ASCO(R) Annual Meeting 3Health News:Kenneth L. Reed, M.D. Performs First State of the Art AccuraScope(TM) Procedure in Dallas 2Health News:Delaware Urologic Associate's, Dr. Peter J. Muench, Presents Advances in Incontinence Treatment with a New Perspective and Outlook 2Health News:Delaware Urologic Associate's, Dr. Peter J. Muench, Presents Advances in Incontinence Treatment with a New Perspective and Outlook 3Health News:Delaware Urologic Associate's, Dr. Peter J. Muench, Presents Advances in Incontinence Treatment with a New Perspective and Outlook 4Health News:Scottish Widows Releases Critical Illness Cover Claims Figures 2Health News:The Year of Affordable Healthcare Brings Together San Francisco Community Groups to Tackle Healthcare Crisis 2Health News:ATR: Obama's VAT Trial Balloon Dusts Off Bill Clinton's 1993 Playbook 2
(Date:1/15/2014)... 2014 /PRNewswire-iReach/ -- ChinaMarketResearchReports.com adds "China Orthopedic Instrument Industry ... (Photo: http://photos.prnewswire.com/prnh/20140115/MN46792 ) Benefiting ... China,s orthopedic instrument industry has ... size rising from 3.28 billion yuan in 2006 to ...
(Date:1/15/2014)... Jan. 15, 2014  Research and Markets ( http://www.researchandmarkets.com/research/6k27gw/dental ) ... Market - Global Industry Analysis, Size, Share, Growth, Trends ... offering. (Logo: http://photos.prnewswire.com/prnh/20130307/600769 ... used on patients in order to treat dental impairments, ...
(Date:1/15/2014)... 15, 2014 AARP Foundation today announced it has established ... from the severe cold weather that has gripped much of ... those in need; so to support these emergency relief efforts ... $250,000, which could mean up to $500,000 in aid. The ...
Breaking Medicine Technology:Orthopedic Instrument Industry in China Markets Forecast to 2015 2Orthopedic Instrument Industry in China Markets Forecast to 2015 3Dental Consumables Market - Global Industry Analysis, Size, Share, Growth, Trends And Forecast, 2013 - 2018 2Dental Consumables Market - Global Industry Analysis, Size, Share, Growth, Trends And Forecast, 2013 - 2018 3AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 2AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 3
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
Medicine Products: