Contact Information:

Media Contact

Dr. Nikolai Axmacher
nikolai.axmacher@ruhr-uni-bochum.de
49-234-322-2674

Twitter: ruhrunibochum

http://www.ruhr-uni-bochum.de




Kredyty mieszkaniowe Kredyty mieszkaniowe

Sprawdź aktualny ranking najlepszych kredytów mieszkaniowych w Polsce - atrakcyjne kredytowanie nieruchomości.

PRESS-NEWS.org - Press Release Distribution
FREE PRESS RELEASES DISTRIBUTION
RSS - Press News Release
Add Press Release

'Memory region' of the brain also involved in conflict resolution

Hippocampus is involved in quick and successful decisions


2015-08-20
(Press-News.org) The hippocampus in the brain's temporal lobe is responsible for more than just long-term memory. Researchers have for the first time demonstrated that it is also involved in quick and successful conflict resolution. The team headed by Prof Dr Nikolai Axmacher from the Ruhr-Universität Bochum (RUB), together with colleagues from the University Hospital of Bonn as well as in Aachen and Birmingham, reported in the journal "Current Biology".

Decision conflicts occur often in everyday life

In their everyday life, people are constantly confronted with decision conflicts, especially if they need to suppress an action that would have made sense under normal circumstances. For example: when the pedestrian lights go green, a pedestrian would normally start walking. If, however, a car comes speeding along at the same time, the pedestrian should stay where he is. In their experiment, researchers opted for a less threatening situation. Test participants heard the words "high" or "low" spoken in a high or low tone, and they had to state - regardless of the meaning of the word - at what pitch the speaker said them. If the pitch doesn't correspond with the meaning of the word, a conflict is generated: the participants would answer more slowly and make more mistakes.

Results confirmed with two measurement methods

The team demonstrated with two different measurement methods that the hippocampus is active in such conflicting situations; this applies particularly when a person solves the conflicts quickly and successfully. Nikolai Axmacher from the Institute of Cognitive Neuroscience and his colleagues analysed the brain activity in healthy participants with functional magnetic resonance imaging. They gained the same results in epilepsy patients who had EEG electrodes implanted in the hippocampus for the purpose of surgery planning; this is how the researchers could measure the activity in that brain region directly.

Memory system could learn from resolved conflicts

Because the hippocampus is essential for memory, the researchers speculate about its role in conflict resolution: "Our data show first of all a completely new function of the Hippocampus - processing of activity conflicts," says Carina Oehrn from the Department of Epileptology at the University Hospital of Bonn. "However, in order to answer the question how that function interacts with memory processes, we will have to carry out additional tests." "Perhaps the memory system becomes particularly active if a conflict has been successfully resolved," speculates Nikolai Axmacher. "Permanently unsolved conflicts can't be used for learning helpful lessons for the future. According to our model, the brain works like a filter. It responds strongly to resolved conflicts, but not to unsolved conflicts or standard situations. However, we have to verify this hypothesis in additional studies."

INFORMATION:

Bibliographic record

C.R. Oehrn, C. Baumann, J. Fell, H. Lee, H. Kessler, U. Habel, S. Hanslmayr, N. Axmacher (2015): Human hippocampal dynamics during response conflict, Current Biology, DOI: 10.1016/j.cub.2015.07.032

Further information

Prof Dr Nikolai Axmacher, Department of Neuropsychology, Institute of Cognitive Neuroscience, Faculty of Psychology at the Ruhr-Universität, 44780 Bochum, Germany, phone: +49/234/32-22674, email: nikolai.axmacher@ruhr-uni-bochum.de

Carina Oehrn, Department of Epileptology, University Hospital of Bonn, Sigmund-Freud-Straße 25, 53127 Bonn, Germany, Phone: +49/228 287-19345, Email: Carina.Oehrn@ukb.uni-bonn.de


ELSE PRESS RELEASES FROM THIS DATE:

Study examines breast cancer mortality after ductal carcinoma in situ diagnosis

2015-08-20
Researchers estimate the 20-year breast cancer-specific death rate for women diagnosed with ductal carcinoma in situ to be 3.3 percent, although the death rate is higher for women diagnosed before age 35 and for black women, according to an article published online by JAMA Oncology. Ductal carcinoma in situ breast (DCIS) cancer, which is also referred to as stage 0 breast cancer, accounts for about 20 percent of the breast cancers detected through mammography. Some women with DCIS experience a second breast cancer (DCIS or invasive) and a small proportion of patients ...

People with psychopathic traits are less likely to 'catch' a yawn than empathetic folks

2015-08-20
People with psychopathic characteristics are less likely to be affected by "contagious yawning" than those who are empathetic, according to a Baylor University psychology study. Yawning after spotting someone else yawn is associated with empathy and bonding, and "catching" yawns happens with many social mammals, among them humans, chimpanzees and dogs, researchers say. The study -- "Contagious yawning and psychopathy" -- involved 135 college student respondents and was published online in the journal Personality and Individual Differences. "You may yawn, even if you ...

Multiple strains of C. difficile cause severe patient outcomes

2015-08-20
NEW YORK (August 20, 2015) - No single genetic strain of the widespread Clostridium difficile (C. difficile) bacteria appears to be any more harmful than other strains, according to new research published online today in Infection Control & Hospital Epidemiology, the journal of the Society for Healthcare Epidemiology of America. The findings contradict previous research suggesting that the emergence of the most severe C. difficile infections (CDI) could be linked with a particular strain known as Ribotype 027 (R027). C. difficile is a highly infectious diarrhea that ...

AGA proposes alternate pathway to recertification

2015-08-20
Bethesda, MD (Aug. 19, 2015) -- Frustrated by a maintenance of certification process that doesn't improve patient care, the American Gastroenterological Association (AGA) this week released a proposed alternate pathway to recertification that is based on established learning theory. 1,3 It eliminates the high-stakes examination and replaces it with active, adaptive, self-directed learning modules that allow for continuous feedback. AGA shared the proposed pathway with the American Board of Internal Medicine (ABIM), which runs the current maintenance of certification ...

Daycare doesn't lead to aggressive behavior in toddlers

2015-08-20
Working parents often worry about sending their toddlers to daycare. But the results of a new study that tracked almost 1,000 Norwegian children enrolled in daycare indicate that working parents can breathe a sigh of relief: The amount of time children spent in daycare had little impact on aggressive behavior. The study is published in Psychological Science, a journal of the Association for Psychological Science. "From a public perspective, our findings are important because they should help ease parents' fears about the potential harms of early non-parental child care," ...

NASA's GPM Satellite analyzes Tropical Storm Danny's rain structure

NASAs GPM Satellite analyzes Tropical Storm Dannys rain structure
2015-08-20
Tropical Storm Danny became the fourth named storm of the season on August 18 when it formed in the central Atlantic about 1,660 miles east of the Windward Islands. The Global Precipitation Measurement (GPM) mission core satellite passed over Danny the next day and analyzed the structure of its rainfall. Danny originated from an African easterly wave that moved off of the coast of Africa 4 days earlier on the 14th of August. Storms that form in this region are known as Cape Verde storms and typically form towards the height of hurricane season. In a typical season, ...

Ductal carcinoma in situ carries a higher risk of death than previously thought

2015-08-20
TORONTO, ON, August 20, 2015 - Women diagnosed with ductal carcinoma in situ (DCIS) are twice as likely to die from breast cancer compared to the general U.S. population, according to a new study led by Dr. Steven Narod. "Our work shows that DCIS has more in common with small invasive cancers than previously thought," explains Dr. Narod, a scientist with Women's College Research Institute and a professor with the Dalla Lana School of Public Health at the University of Toronto. "In these cases, we've found that there's an inherent potential for DCIS to spread to other ...

Afatinib: Added benefit in certain mutations confirmed

2015-08-20
Afatinib (trade name: Giotrif) has been approved since September 2013 for the treatment of adult patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) with activating EGF receptor mutations who have not been treated with an EGF receptor tyrosine-kinase inhibitor (EGFR TKI). After a first early benefit assessment in February 2014, the German Institute for Quality and Efficiency in Health Care (IQWiG) now reexamined whether the drug offers an added benefit over the appropriate comparator therapy. The new benefit assessment was conducted because a ...

Swiss researchers evaluate fetal progenitor tenocytes for repairing tendon injuries

2015-08-20
Putnam Valley, NY. (Aug. 20, 2015) - Tendon injuries, especially those acquired while engaging in sports, are not easily healed due to the fibrous nature of tendon tissues which transmit forces from muscle to bone and protect surrounding tissues against tension and compression. Tendon injuries to wrists, knees, elbows and rotator cuffs, often from over use when playing golf or tennis, are increasingly common for both professional and amateur athletes ("weekend warriors") alike. Previous studies in which human fetal progenitor tenocyte (hFPT) transplantation stimulated ...

Memorial Sloan Kettering Cancer Center researchers publish landmark 'basket study'

2015-08-20
Researchers from Memorial Sloan Kettering Cancer Center (MSK) have announced results from the first published basket study, a new form of clinical trial design that explores responses to drugs based on the specific mutations in patients' tumors rather than where their cancer originated. Published in the New England Journal of Medicine, the early phase II study, led by MSK Physician-in-Chief and Chief Medical Officer José Baselga, MD, PhD, looked at the effect of vemurafenib (Zelboraf®) in multiple nonmelanoma BRAFV600-mutated cancers in 122 patients from 23 ...

LAST 30 PRESS RELEASES:

How your brain decides blame and punishment -- and how it can be changed

Uniquely human brain region enables punishment decisions

Pinpointing punishment

Chapman University publishes research on attractiveness and mating

E-cigarettes: Special issue from Nicotine & Tobacco Research

Placental problems in early pregnancy associated with 5-fold increased risk of OB & fetal disorders

UT study: Invasive brood parasites a threat to native bird species

Criminals acquire guns through social connections

Restoring ocean health

Report: Cancer remains leading cause of death in US Hispanics

Twin study suggests genetic factors contribute to insomnia in adults

To be fragrant or not: Why do some male hairstreak butterflies lack scent organs?

International team discovers natural defense against HIV

Bolivian biodiversity observatory takes its first steps

Choice of college major influences lifetime earnings more than simply getting a degree

Dominant strain of drug-resistant MRSA decreases in hospitals, but persists in community

Synthetic biology needs robust safety mechanisms before real world application

US defense agencies increase investment in federal synthetic biology research

Robots help to map England's only deep-water Marine Conservation Zone

Mayo researchers identify protein -- may predict who will respond to PD-1 immunotherapy for melanoma

How much water do US fracking operations really use?

New approach to mammograms could improve reliability

The influence of citizen science grows despite some resistance

Unlocking secrets of how fossils form

What happens on the molecular level when smog gets into the lungs?

Using ultrasound to clean medical instruments

Platinum and iron oxide working together get the job done

Tiny silica particles could be used to repair damaged teeth, research shows

A quantum lab for everyone

No way? Charity's logo may influence perception of food in package

[Press-News.org] 'Memory region' of the brain also involved in conflict resolution
Hippocampus is involved in quick and successful decisions
Press-News.org is a service of DragonFly Company. All Rights Reserved.
Issuers of news releases are solely responsible for the accuracy of their content.