Navigation Links
Research Permits First-Ever Visualization of Psychological Stress in the Human Brain

Using a novel application of an fMRI (functional magnetic resonance imaging) technique, researchers at the University of Pennsylvania School of Medicine have, for the first time, visualized the effects of everyday psychological stress in a healthy human brain.

Their work, performed at Penn's Center for Functional Neuroimaging, provides a neuro-imaging marker of psychological stress -- which will pave the way for the development of improved strategies for preventing or correcting the long-term health consequences of chronic stress. The researchers' study appears in the November 21 online edition of Proceedings of the National Academy of Sciences.

In the Penn study, researchers induced stress on healthy subjects by asking them to quickly tackle challenging mental exercises while being monitored for performance. During the fMRI scans, the researchers also recorded subjects' emotional responses -- such as stress, anxiety, and frustration -- and measured the corresponding changes in stress hormone and heart rate. Many subjects described themselves as being "flustered, distracted, rushed and upset" by the stress task.

The results showed increased cerebral blood-flow during the "stress test" in the right anterior portion of the brain (prefrontal cortex) -- an area long associated with anxiety and depression. More interestingly, the increased cerebral blood-flow persisted even when the testing was complete. These results suggest a strong link between psychological stress and negative emotions. On the other hand, the prefrontal cortex is also associated with the ability to perform executive functions -- such as working memory and goal-oriented behavior -- that permit humans to adapt to environmental challenges and threats. "The message from this study is that while stress may be useful in increasing focus, chronic stress could also be detrimental to mental health," concludes Jiongjiong Wang, PhD, Assistant Professor of Radiology and principal investiga
'"/>

Source:Penn Medicine


Page: 1 2

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants
3. Researchers find how protein allows insects to detect and respond to pheromones
4. Researchers Uncover Key Step In Manufacture of Memory Protein
5. Research advances quest for HIV-1 vaccine
6. Research on Worms Yields Clues on Aging
7. Researchers reveal the infectious impact of salmon farms on wild salmon
8. Researchers identify target for cancer drugs
9. Weill Cornell Research Reveals Secrets Of Trafficking Within Cells
10. Researchers discover molecule that causes secondary stroke
11. Researchers find missing genes of ancient organism
Post Your Comments:
(Date:7/10/2014)... New York , July 7, 2014 ... by Transparency Market Research "Electronic Access Control Systems Market ... 2014 - 2019," the global Electronic Access Control systems ... and is expected to grow at a CAGR of ... value of USD 31,187.8 million in 2019. ...
(Date:7/10/2014)... belongs to the large, mainly tropical flowering plant family ... in the family rely on bees for their pollination. Only ... or vertebrates. The flowers of Axinaea appear in ... petals of the different species are pink, yellow, orange or ... the contrasting colours of their bulbous appendages. The pollination mechanism ...
(Date:7/10/2014)... has helped stabilize or even improve the state ... the situation in the Mediterranean has deteriorated over ... evaluating nine fish species reported in the Cell ... 10, scientists call for stringent monitoring of Mediterranean ... advanced management plans in Mediterranean waters. , Their ...
Breaking Biology News(10 mins):Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 2Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 3Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 4Electronic Access Control Systems Market is Expected to Reach USD 31.2 Billion Globally in 2019: Transparency Market Research 5Novel type of bird pollination mechanism discovered in South America 2Mediterranean fish stocks show steady decline 2
... 20, 2013 Market news updates for advancing ... Inc. (OTCQB: NXTD), Apple Inc. (NASDAQ: AAPL ), ... CSCO ) and NQ Mobile Inc. (NYSE: NQ) ... published a report on NXT-ID, Inc., (OTCQB: NXTD) featuring the ...
... of all humans are persistently colonized with Staphylococcus aureus ... of the major sources of hospital-acquired infections, including the antibiotic-resistant ... discovered one of the keys to the immense success of ... immune defense mechanism and use it to destroy white blood ...
... fattening than others? What about the risks of bariatric ... (ASN) on December 5-7 for answers to these questions ... Nutrition Conference. The 3-day program delivers valuable ... satellite sessions, and networking opportunities. Credentialed media, science writers ...
Cached Biology News:Biometric-Mobile Wallet Technology Takes Aims at a Target Market Of Nearly $1Billion Potential 2Biometric-Mobile Wallet Technology Takes Aims at a Target Market Of Nearly $1Billion Potential 3Biometric-Mobile Wallet Technology Takes Aims at a Target Market Of Nearly $1Billion Potential 4Biometric-Mobile Wallet Technology Takes Aims at a Target Market Of Nearly $1Billion Potential 5Staphylococcus aureus bacteria turns immune system against itself 2Advances and Controversies in Clinical Nutrition: Diet, Technology and Practice 2
(Date:7/10/2014)... Hall effect in bilayer graphene and shown that this ... electric field. , The fractional quantum Hall effect, ... are exposed to large magnetic fields, is a striking ... behave as a single system. However, while the basic ... of this collective behavior remain not well understood, in ...
(Date:7/10/2014)... out for crude 3-D glasses, polarized glasses, and ... basic devices, used to trick the brain into ... rendered obsolete with the introduction of new holography ... TAU doctoral students Yuval Yifat, Michal Eitan, and ... on nanoantennas that could be used for security ...
(Date:1/15/2014)... assembling a club sandwich at the nanoscale, National ... succeeded in crafting a uniform, multi-walled carbon-nanotube-based coating ... used in upholstered furniture and other soft furnishings. ... was reduced 35 percent compared with untreated foam. ...
(Date:1/15/2014)... PA (PRWEB) January 15, 2014 The Pittcon ... publisher of Food Safety Tech , an e-Journal and ... signed an agreement for the second year for the co-location ... Pittcon 2014. The partnership provides that the registration fee to ...
Breaking Biology Technology:Columbia researchers observe tunable quantum behavior in bilayer graphene 2Columbia researchers observe tunable quantum behavior in bilayer graphene 3Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3Layered security: Carbon nanotubes promise improved flame-resistant coating 2Pittcon Announces Second Year Partnership With Food Safety Tech 2Pittcon Announces Second Year Partnership With Food Safety Tech 3
... Disease Altering Treatment Shows Ability to Prevent HIV ... VIRxSYS Corporation, a,privately held company developing gene therapies ... Phase II trial of VRX496, a gene,therapy for ... Conference on,Retroviruses and Opportunistic Infections (CROI) in Boston, ...
... Strengthening PPD,s presence in Eastern Europe, WILMINGTON, N.C., ... has signed an agreement to purchase InnoPharm,Ltd., an independent ... acquisition will expand PPD,s global reach with,established offices in ... CROs in Russia, InnoPharm was a pioneer in the,implementation ...
... (Nasdaq: IDIX ) announced today that Idenix management,will ... & Investor,Conference on Tuesday, February 12, 2008 at 9:30 ... the Waldorf-Astoria Hotel in New York, NY., The ... accessed,under "Calendar of Events" in the Idenix Investor Center ...
Cached Biology Technology:VIRxSYS Announces Interim Results from VRX496 Gene Therapy Phase II Trial 2PPD to Acquire InnoPharm Ltd. 2PPD to Acquire InnoPharm Ltd. 3
...
... Antibody Validation Service enables early selection ... development by providing quantitative data for ... of each antibody. Furthermore quantitative antibody ... off-target activity of your antibodies., The ...
... western blotting. Get results sooner and save hours ... detection. Eliminates the need for a membrane transfer ... reagents are ready-to-use. No reagents to prepare or ... reagents required. Guarantees a simple to perform, mistake-free ...
... paper sandwiches are composed of a precut ... thick filter paper that are preassembled into ... These 7 x 8.5 cm membrane sandwiches ... Gel-sized gels and are supplied as a ...
Biology Products: