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

of Mental Health funded the research, which appears in the online edition of The American Journal of Psychiatry.

The UW researchers used functional magnetic resonance imaging to examine brain activation in 19 individuals with autism and in a comparison group of 20 healthy adults. The subjects ranged in age from 18 to 44 and the two groups were matched for IQs in the low-normal range. Both groups had their brains scanned while they looked at series of faces with neutral expressions. Each face appeared on a screen for three seconds and occasionally a face would be repeated two consecutive times. When that happened subjects were instructed to push a button.

The scientists were interested in what happened in two brain regions, the amygdala and the fusiform gyrus, when the subjects viewed the faces. It turned out that the fusiform gyrus, which helps determine what kind of object a person is looking at a face or a house, for example showed no habituation in either group. But the differences were striking when it came to the amygdala.

"The differences we found were in the amygdala and specific to the amygdala," said Kleinhans. "They originated there and did not go across the brain."

She said one theory about autism is that when this hyperarousal occurs an individual misses important information. Those individuals with autism who had the most social impairment exhibited the highest levels of amygdala arousal.

"This is another piece of evidence that there is something wrong with the amygdala in autism that contributes to social impairment. These results help refine our understanding of functional abnormalities in autism and are a new way of thinking about social dysfunction in autism," said Kleinhans.


'/>"/>

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:7/3/2015)... ... 03, 2015 , ... On June 30th SEO authority and ... system called "Page One Engine" . The program, which has been hailed ... from several well-known marketers. HonestyFirstReviews.com's Tiffany Hendricks has joined the party, publishing an ...
(Date:7/3/2015)... ... 2015 , ... Scientists at several top US cancer centers believe they now ... Click here to read the complete story , just posted on the Surviving ... Medical Center, and New York University exposed mice with a mutation on the tumor ...
(Date:7/3/2015)... , ... July 03, 2015 , ... ... to healthcare providers, has been retained to lead a national president recruitment ... search firms in the healthcare industry, B. E. Smith has recently placed more ...
(Date:7/3/2015)... ... July 03, 2015 , ... ... on June 25, 2015 at 1:00pm. The Association welcomed speaker C. Daniel McGillicuddy ... injured bicyclists and practical points of investigating these types of cases. , Each ...
(Date:7/3/2015)... ... , ... Talcum powder attorneys representing clients in national lawsuits announce the launch ... website. Just as the previous version did, the new website will serve as a ... ovarian cancer warning information. The site is routinely updated with news articles on talcum ...
Breaking Medicine News(10 mins):Health News:Page One Engine - Review Of Dori Friend's SEO Training Course Released 2Health News:Study Finds Small Amounts of Asbestos May Trigger Mesothelioma in People with Genetic Mutation, According to Surviving Mesothelioma 2Health News:Regional Care, Inc. Retains B. E. Smith to Recruit New President 2Health News:Regional Care, Inc. Retains B. E. Smith to Recruit New President 3Health News:Attorney from William Mattar Leads Discussion on Bicycle Accidents 2Health News:Talcum Powder Lawsuit News: Cancer Attorneys Launch Updated Mobile Site 2Health News:Talcum Powder Lawsuit News: Cancer Attorneys Launch Updated Mobile Site 3
... 21 Barr Pharmaceuticals, Inc. (NYSE: BRL ) ... to them relating to the acquisition of Barr by Teva ... , "Today,s vote demonstrated the ... Bruce L. Downey, Barr,s Chairman and CEO. "We are pleased ...
... a statewide survey, 33 physicians credentialed to practice at the Texas ... Texas Monthly in its 2008 annual listing of " ... year, the publishers of Texas Monthly work with Key ... the state of Texas to ask, "If you needed medical care, ...
... Nov. 21 Innerscope Research(TM), a revolutionary,biometric media ... the appointment of three executives who will strengthen ... , The ... of experience,include Geoffrey Gill as Chief Financial Officer ...
... Three Minnesotans who successfully,quit smoking will receive big prizes during ... 24 at the Xcel Energy Center. The winners,were participants in ... QUITPLAN(R) Services. , The ... runners-up,will get $1,000 gift cards from Gander Mountain. , ...
... needed less pain meds, study found , , FRIDAY, Nov. ... the amount of pain-killing medication requested by women during ... expectant mothers. , Half the women were assigned ... during their pregnancy, while the other half acted as ...
... cardiovascular disease are not given adequate drug therapy. This is ... of Deutsches rzteblatt International ( Dtsch Arztebl Int ... German results of this prospective, one-year survey. , 512 doctors ... patients in all, of whom 89.2% suffered from one or ...
Cached Medicine News:Health News:Barr Shareholders Approve Pending Teva Acquisition 2Health News:Barr Shareholders Approve Pending Teva Acquisition 3Health News:Barr Shareholders Approve Pending Teva Acquisition 4Health News:Annual List of 'Super Doctors' Features 33 Texas Institute for Surgery Physicians 2Health News:Innerscope Research Strengthens Management Team With Three Executive Appointments 2Health News:Lucky Quitters to Receive Big Money in Stop-Smoking Contest 2Health News:Aquarobics May Help Ease Labor 2
(Date:7/3/2015)... Redwood Pharma AB has entered into a ... both the US and China , ... hydrogel technology in its lead chronic Dry Eye therapeutic ... technology offers many unique competitive benefits. At lower temperatures, ... low concentrations of polymer the system can be transitioned ...
(Date:7/2/2015)... , July 2, 2015 ResMed Inc. (NYSE: ... quarter and fiscal year ended June 30, 2015 results on ... market close. A press release with ResMed,s results will be ... will host a webcast to discuss operating results and future ... at 1:30 p.m. US Pacific Time and the live webcast ...
(Date:7/2/2015)... , July 2, 2015 Roche,s ... conspicuously high-growth market segment in hematology testing, according ... said that Roche,s recent unveiling of its Bloodhound digital ... cobas m 511 hematology analyzer – ... capture growth enjoyed by current leader CellaVision, but ...
Breaking Medicine Technology:Redwood Pharma Licenses Novel Hydrogel Drug Delivery Technology From Broda Technologies 2ResMed to Announce Fourth Quarter and Fiscal Year-End 2015 Results 2Kalorama: With Bloodhound, Roche Closes in on High-Growth Hematology Segment 2Kalorama: With Bloodhound, Roche Closes in on High-Growth Hematology Segment 3
... The OTF5000 represents the new style ... long-established and reliable OTF/AS cryostat, the ... systems in the ever-reliable and powerful ... options plus money-saving package deals makes ...
... Leica TP1020 product family are semi-enclosed tissue ... combination of approved technology with modern and ... maximum safety for tissues at all stages ... based on proven precision mechanics in conjunction ...
... A unique sliding microtome with ... during return travel. Maintenance-free precision cross ... specimens and specialty applications in biological, ... up to 155 x 90 mm ...
... face-lifted Leica RM2125 microtome comes in two ... Leica RM2125 RT. All RM2125 versions are ... debris entering the precision micrometer feeding system. ... two-step trimming function and specimen retraction as ...
Medicine Products: