Share 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.” 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.
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SPAIN: RENFE’s Integria rolling stock maintenance business is to build Talgo rolling stock for other operators under an agreement signed with the train builder on June 16. Running for a term of 14 years from 2009, the agreement should guarantee 1 150 000 h of work for the Integria sites at Valladolid and Málaga, which will be responsible for mechanical and electrical assembly, painting, inspection and testing.As part of an order for 10 gauge-changing trainsets for overnight services placed by RENFE with Talgo in 2005 (RG 7.05 p395), the Integria workshops at Málaga have rolled out the first of five formations that they will assemble. Capable of operating at up to 220 km/h, each 10-car trainset has a total of 98 sleeping berths and 136 reclining seats, as well as restaurant car and a bar car. They are to be deployed first on routes from Barcelona to Cádiz and Málaga, followed in 2009 by services to Granada, Gijón and Galicia.Málaga is also producing seven Class 130 gauge-changing trainsets (14 power cars and 77 trailers) as well as 14 Class 112 sets (28 power cars and 168 trailers). A total of 30 Class 112 and 16 Class 102 trainsets are to be maintained by the Tarvia joint venture of RENFE< and Talgo (which owns 49%), due to commence operations at the start of 2009.
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Audio Playerhttps://www.busybuddiesng.com/wp-content/uploads/2018/05/Taribo-West-May-4.mp300:0000:0000:00Use Up/Down Arrow keys to increase or decrease volume.Related Ex-international Taribo West has warned that a ‘very fit’ Super Eagles ‘will be a surprise to the nations of the world’ at the 2018 FIFA World Cup in Russia.Nigeria are drawn in Group D, where they will face Croatia in their opening match on 16 June before confronting debutants, Iceland (on 22 June) and Argentina in their final group game on 26 June.In a chat with the BBC, the former Inter and AC Milan defender, who featured for the Eagles in the 1998 and 2002 World Cups believes the unity and fitness level of the team will see them shock all comers in Russia.“For the first time after a long years, we could see that unity of that spirit is coming back,” the 44-year old said. “I think this coach (Gernot Rohr) is bringing back what has been lost for a long years.“The team does not have great players like the Kanus, the Okochas, the Victors, the Amokachis, but they play as one. They fight as one, they move as one, and you could see that the team is conditionally very fit.“If a team is very fit, they can surprise any team any day, any time. I think that is what we’ve seen in this game. And I believe the Nigerian team will be a surprise to nations of the world in this World Cup,” he said.