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Marines who suffered brain injuries doubled risk of PTSD Up to a fifth of U.S. service members who served in Iraq and Afghanistan have come home with a blast-related concussion or post-traumatic stress disorder, or both.
One year of contact sports may raise risk for memory loss Cumulative hits to the head during one season of football or hockey could leave a lasting impact on the brain and cognitive abilities, a new study suggests.
Sniffing out danger: Fearful memories can trigger heightened sense of smell Neuroscientists studying the olfactory -- sense of smell -- system in mice have discovered that fear reaction can occur at the sensory level, even before the brain has the opportunity to interpret that the odor could mean trouble.
Children with autism benefit from peer solicitation Peer solicitation – a child inviting another to play – can improve reciprocal social interaction among children with autism, according to a study.
Cultural differences? Researchers examine media impact in multiple countries A cross-cultural study shows prosocial media positively influence behavior regardless of culture. The study, a first-of-its-kind, tested empathy and helpfulness of thousands of children in seven countries.
Neuroscience method of optogenetics as good as electrical stimulation Researchers have shown that optogenetics -- a technique that uses pulses of visible light to alter the behavior of brain cells -- can be as good as or possibly better than the older technique of using small bursts of electrical current. Optogenetics had been used in small rodent models. Research has shown that optogenetics works effectively in larger, more complex brains.
Self-Victimizing Again? Do you attribute control of your successes and failures to yourself or to some fated force outside of your purview? Whether it is your weight, your emotions, your spouse, your children, your paycheck--do you continually find yourself feeling resentful or upset by the events in your life? Self-determination is a remedy for feeling perpetually victimized. read more
Mitt Romney's face looks different to Republicans and Democrats A new study suggests that political bias can influence how people perceive the facial characteristics of a presidential candidate -- even after seeing his face on TV thousands of times.
Worms and hot baths: Novel approaches to treating autism Two unusual treatment approaches may have beneficial effects on the symptoms of autism in children and adults. Using a hot bath to raise body temperature and thereby mimic the effects of infection, or using worm eggs to stimulate the production of immunoregulatory factors in the gut to diminish inflammatory signals, both attenuated symptoms of autism. These findings support the idea that disruption of systems in the body that control inflammation may contribute to the disorder.
High levels of maternal care has life-long impact on vulnerability to stress, study says A new study shows that high levels of maternal care during the early post-natal period in rodents can reduce the sensitivity of the offspring to stressful events during adulthood. Maternal care is shown to chemically modify and thereby re-program genes that control stress responses, making them less likely to be activated. The findings have important implications for understanding early environment influences on stress-related disorders.
Enzyme may be important in predicting Alzheimer's disease The critical enzyme beta-secretase1 (BACE1) is known to be elevated in brains with sporadic Alzheimer disease (AD). Scientists have now found increased levels of BACE1 in brains with mild cognitive impairment, suggesting that BACE1 activity is important for conversion of mild cognitive impairment to AD and may be an early indicator of AD.
Brain structure shows affinity with numbers The structure of the brain shows the way in which we process numbers. People either do this spatially or non-spatially. A study shows for the first time that these individual differences have a structural basis in the brain.
Autism: 10 Quick Facts You Should Know Autism: what are the numbers, the symptoms, the cause, the genetics and the cure?→ Jeremy Dean is a psychologist and author of PsyBlog. His latest book is "Making Habits, Breaking Habits: How to Make Changes That Stick"
APA Report on Gun Violence Identifies Precursors and Promising Solutions Behavioral threat assessment identified as most effective prevention strategy
Muting the Mozart effect Though it has been embraced by everyone from advocates for arts education to parents hoping to encourage their kids to stick with piano lessons, two new studies show no effect of music training on the cognitive abilities of young children.
Dietary amino acids improve sleep problems in mice with traumatic brain injury Scientists have discovered how to fix sleep disturbances in mice with traumatic brain injuries -- a discovery that could lead to help for hundreds of thousands of people who have long-term and debilitating sleep and wakefulness issues after they suffer concussions.
Poverty influences children's early brain development Poverty may have direct implications for important, early steps in the development of the brain, saddling children of low-income families with slower rates of growth in two key brain structures, according to researchers.
Collective Intelligence: Help The World Create An IQ Test You've seen those IQ tests online and you probably wonder who makes them. Well now you can actually become the test inventor rather than test taker in a new project from the M.I.T. Center For Collective Intelligence.read more
Nations aim to beat dementia by 2025 with AIDS-style fight Leading countries set a goal of finding a cure or effective treatment for dementia by 2025.
Exam grades 'more nature than nurture' Genetic influence explains almost 60% of the variation in school exam results, twin studies suggest.