Dartmouth researcher discovers ‘brain signature’ that predicts human emotions

first_imgShare on Twitter Email LinkedIn Share on Facebook “It’s an impressive demonstration of imaging our feelings, of decoding our emotions from brain activity,” says lead author Luke Chang, an assistant professor in Psychological and Brain Sciences at Dartmouth. “Emotions are central to our daily lives and emotional dysregulation is at the heart of many brain- and body-related disorders, but we don’t have a clear understanding of how emotions are processed in the brain. Thus, understanding the neurobiological mechanisms that generate and reduce negative emotional experiences is paramount.”The quest to understand the “emotional brain” has motivated hundreds of neuroimaging studies in recent years. But for neuroimaging to be useful, sensitive and specific “brain signatures” must be developed that can be applied to individual people to yield information about their emotional experiences, neuropathology or treatment prognosis. Thus far, the neuroscience of emotion has yielded many important results but no such indicators for emotional experiences.In their new study, the researchers’ goals were to develop a brain signature that predicts the intensity of negative emotional responses to evocative images; to test the signature in generalizing across individual participants and images; to examine the signature’s specificity related to pain; and to explore the neural circuitry necessary to predict negative emotional experience.Chang and his colleagues studied 182 participants who were shown negative photos (bodily injuries, acts of aggression, hate groups, car wrecks, human feces) and neutral photos. Thirty additional participants were also subjected to painful heat. Using brain imaging and machine learning techniques, the researchers identified a neural signature of negative emotion — a single neural activation pattern distributed across the entire brain that accurately predicts how negative a person will feel after viewing unpleasant images.“This means that brain imaging has the potential to accurately uncover how someone is feeling without knowing anything about them other than their brain activity,” Chang says. “This has enormous implications for improving our understanding of how emotions are generated and regulated, which have been notoriously difficult to define and measure. In addition, these new types of neural measures may prove to be important in identifying when people are having abnormal emotional responses – for example, too much or too little — which might indicate broader issues with health and mental functioning.”Unlike most previous research, the new study included a large sample size that reflects the general adult population and not just young college students; used machine learning and statistics to develop a predictive model of emotion; and, most importantly, tested participants across multiple psychological states, which allowed researchers to assess the sensitivity and specificity of their brain model.“We were particularly surprised by how well our pattern performed in predicting the magnitude and type of aversive experience,” Chang says. “As skepticism for neuroimaging grows based on over-sold and -interpreted findings and failures to replicate based on small sizes, many neuroscientists might be surprised by how well our signature performed. Another surprising finding is that our emotion brain signature using lots of people performed better at predicting how a person was feeling than their own brain data. There is an intuition that feelings are very idiosyncratic and vary across people. However, because we trained the pattern using so many participants – for example, four to 10 times the standard fMRI experiment — we were able to uncover responses that generalized beyond the training sample to new participants remarkably well.”center_img Pinterest Share A Dartmouth researcher and his colleagues have discovered a way to predict human emotions based on brain activity.The study is unusual because of its accuracy — more than 90 percent — and the large number of participants who reflect the general adult population rather than just college students. The findings could help in diagnosing and treating a range of mental and physical health conditions.The study appears in the journal PLOS Biology.last_img read more

HEA’s Contract with Furie Decreases COPA for Coming Quarter

first_imgFacebookTwitterEmailPrintFriendly分享Homer Electric Association’s natural gas purchasing contract with Furie Operating Alaska that goes into effect April 1 will decrease costs for customers in the coming quarter. HEA’s contract with Furie commits the electric company to purchase between 4 and 6.2 billion cubic feet of natural gas annually. The current agreement ends in December of 2018, when HEA will be given options to extend until 2020. Gallagher: “As of April 1 the COPA will actually decrease from 6.6 cents to 6.3 cents. That will go into effect April 1 and will mean about a $1.87 reduction in the average monthly bill for a HEA member.” Homer Electric’s current purchasing contract ends with Hilcorp tomorrow. Gallagher: “It’s basically a combination of projecting forward and looking back to see how the previous quarter went, so it’s a little difficult to say exactly what will happen in July but we’re hopeful that it will hold steady or possibly actually decrease.” HEA’s Joe Gallagher says the cost of power adjustment, or COPA, is calculated each quarter. We asked if this decrease in cost will continue into the next quarter at the same level…last_img read more

Death toll in ambulance-car bombing claimed by Taliban rises to 95 with more than 150 injured

first_img Related iStock/Thinkstock(KABUL, Afghanistan) — A powerful suicide car bomb rocked Afghanistan’s capital Saturday morning, killing at least 95 people and injuring 158, according to Wahidullah Majrooh, a spokesman for the country’s health ministry.The Taliban claimed responsibility for the insurgent attack in Kabul, which is the deadliest in the country so far this year.Police in Kabul said the explosion occurred near the entrance to the government’s former interior ministry building at the end of Chicken Street, a popular thoroughfare for shopping. The attacker was driving an ambulance, according to the Afghan interior ministry.“I was in my shop. I heard a big boom,” Haji Wali, a shopkeeper told ABC News. “I came out and helped the people wounded. There were many people wounded. People are still laying down on the footpaths close to shops.”Thick, dark smoke was seen billowing into the sky after the blast.Emergency Hospital, on the front line of trauma care in Afghanistan and run by an Italian charity, said it received at least 50 injured victims.“I helped and moved around 50 to 60 wounded people myself,” a man on the street named Parwaiz Ihsan told ABC News. “I just came back but there are many dead bodies still laying down there; we couldn’t move them.”Afghanistan’s chief executive, Abdullah Abdullah, decried the attack as “insane, inhuman, heinous and a war crime” via his official Twitter account. He also urged the international community to “take further action against state sponsored terrorism.”Abdullah tweeted, “Our priority and focus right now is to help those in need and provide the best treatment for those wounded. This is the moment when we all need to stand together and punch our enemy hard. This is enough!”U.S. Ambassador to Afghanistan John Bass also condemned Saturday’s attack, describing it as a “senseless and cowardly bombing.”“My government and I stand with the brave people of Afghanistan,” Bass said in a statement. “Their work to create a peaceful, prosperous future for all the citizens of this country is the best response to terrorists and others who know only violence.” Copyright © 2018, ABC Radio. All rights reserved.Powered by WPeMaticolast_img read more

Les Dean is named new Sumner Regional Medical Center CEO; starts April 1

first_img Close Forgot password? Please put in your email: Send me my password! Close message Login This blog post All blog posts Subscribe to this blog post’s comments through… RSS Feed Subscribe via email Subscribe Subscribe to this blog’s comments through… RSS Feed Subscribe via email Subscribe Follow the discussion Comments (10) Logging you in… Close Login to IntenseDebate Or create an account Username or Email: Password: Forgot login? Cancel Login Close WordPress.com Username or Email: Password: Lost your password? Cancel Login Dashboard | Edit profile | Logout Logged in as Admin Options Disable comments for this page Save Settings Sort by: Date Rating Last Activity Loading comments… You are about to flag this comment as being inappropriate. Please explain why you are flagging this comment in the text box below and submit your report. The blog admin will be notified. Thank you for your input. -13 Vote up Vote down Hmmm…. · 182 weeks ago Good luck, and god help SRMC. This is going to be a catastrophic mistake. Hope they have a plan B for the ER. Les is a nice guy with no qualifications. It is laughable that you actually put he was hired because SRCM can afford him. Oh and the managers all applauded because anyone with sense would have gotten ride of them years ago! Les will be too nice to do anything about them. Sinking ship that can’t be saved… Report Reply 2 replies · active 181 weeks ago +14 Vote up Vote down John Munro · 181 weeks ago OK, know it all, just what kind of mistakes did the hospital board make? You claim that Les doesn’t have the qualifications to run the hospital. Well, maybe he hasn’t been a hospital administrator, but he does have an extremely thorough knowledge of what is going on with the hospital, as he’s been there for ten years. He has ran the lab department in a very efficient manner, probably as well as anyone who’s been before him has. He is very well educated, and he understands the problems that effect the hospital and our community. I just imagine the the different department managers know as well the challenges ahead, and if they are behind the board on his hiring, I’m sure they have a much better understanding of the situation than you think you know. I’ve made the statement before, and I’ll make it again. If your going to throw rocks at someone you owe it to them and everyone else to reply with your real name, not some handle you can hide behind. Otherwise, you should just keep your damn mouth shut! Report Reply +9 Vote up Vote down SMH · 181 weeks ago This has disgruntled employee written all over it. Report Reply +10 Vote up Vote down Guest · 182 weeks ago Great guy! Good luck to Les! Report Reply 0 replies · active 182 weeks ago +5 Vote up Vote down Ssandy Meridith · 182 weeks ago Do you think the monies spent on the interim CEO could now be used to purchase SRM the instrument to check INR instead of those tests being sent out? . We need less than a 24 hour turnaround!! Report Reply 2 replies · active 181 weeks ago -3 Vote up Vote down Betty · 181 weeks ago INR are done in house and have been for years! For delays in getting results look at you Doctors office. Report Reply +2 Vote up Vote down lab customer · 181 weeks ago The machine has been down since october Report Reply +6 Vote up Vote down No one special · 181 weeks ago Good choice, good luck Les! Report Reply 0 replies · active 181 weeks ago +7 Vote up Vote down Team SRMC · 181 weeks ago Congrats Les! Ignore the negative comments, there always has to be a few of those…sorry! SRMC is an amazing facility and the staff is all behind you! Report Reply 0 replies · active 181 weeks ago 0 Vote up Vote down Sovaldi Tablets · 172 weeks ago Good health is very important. i am sure those post is very helpful for everyone. Sovaldi Tablets Report Reply 0 replies · active 172 weeks ago Post a new comment Enter text right here! Comment as a Guest, or login: Login to IntenseDebate Login to WordPress.com Login to Twitter Go back Tweet this comment Connected as (Logout) Email (optional) Not displayed publicly. Name Email Website (optional) Displayed next to your comments. Not displayed publicly. If you have a website, link to it here. Posting anonymously. Tweet this comment Submit Comment Subscribe to None Replies All new comments Comments by IntenseDebate Enter text right here! Reply as a Guest, or login: Login to IntenseDebate Login to WordPress.com Login to Twitter Go back Tweet this comment Connected as (Logout) Email (optional) Not displayed publicly. Name Email Website (optional) Displayed next to your comments. Not displayed publicly. If you have a website, link to it here. Posting anonymously. Tweet this comment Cancel Submit Comment Subscribe to None Replies All new comments by Tracy McCue, Sumner Newscow — By a 5-0 vote this afternoon, the Sumner Regional Medical Center board of directors approved the hiring of Les Dean as the CEO for the county’s largest healthcare facility.Les Dean is currently the laboratory manager at SRMC. He will be replacing Barry Harding on April 1. Harding was hired through the Community Hospital Corporation to be the interim CEO at SRMC since November 2015.Les DeanDean has worked at SRMC since 20o6 as Director of Clinical Laboratory Operations overseeing the operation of all areas in the laboratory including complexity testing – blood banking, clinical chemistry, microbiology, hematology, phlebotomy, drug of abuse testing, proficiency testing, customer service, outreach marketing and personnel management. This will be his first experience as a hospital administrator.SRMC Board President Fred Hinman said the board decided to hire within, listing several reasons for the move. He said Dean is considered a good manager with deep knowledge of the inner workings of SRMC and its financial situation. He is considered level headed and highly respected amongst his peers. He can start on the ground running. And, best of all, SRMC can afford him.“When we announced this to the managers at SRMC, they erupted in applause,” Hinman said. “Les realizes that being administrator is not just a job, but that he is overseeing SRMC as an important part of the community.”Hinman said that in years past, the SRMC board has looked elsewhere only to make the costly mistake of hiring someone who looked good on paper but was not a good fit for the hospital. He also said in the last hiring there was no transition between Harding and previous CEO Leonard Hernandez, who left before Harding came on the scene.Harding was never considered a permanent CEO and/or CFO for SRMC, named interim at his hiring in 2015.Dean said after the vote was taken that he appreciated the opportunity to lead SRMC that had tremendous support from the community and the staff within.“I appreciate this opportunity to take what we know are the critical problems and move forward with the work Mr. Harding has already started,” Dean said. “I look forward to working with the management team of SRMC to ensure quality patient care for this community.”Before arriving at SRMC, Dean was a laboratory manager at Wesley Medical Center from 1986 to 2006. He graduated from Wichita State University in 1986. Before that he was an on-air was a radio personality having graduated from Santa Monica College in California with a Communications Degree.Follow us on Facebook.Follow us on Twitter.last_img read more