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Sleep deprivation eliminates fear generalization

January, 2011In a small study, a sleepless night after trauma prevents the development of PTSD symptoms.Given all the research showing the importance of sleep for consolidating memories, it should come...

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Brain prosthetic restores learning capability in rats

September, 2011Effective patterns of neural activity replayed via an artificial device inserted in the hippocampus restores lost learning capability and even improves learning in normal rats.In the...

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Frequent 'heading' in soccer can lead to brain injury and cognitive impairment

December, 2011A small study extends the evidence that even mild concussions can cause brain damage, with the finding that frequent heading of the ball in soccer can cause similar damage.American...

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Quick therapy may reduce post-traumatic stress when delivered immediately

July, 2012A pilot study supports the value of brief cognitive therapy for victims of traumatic events, when delivered as soon as possible after the event. The benefit appears greatest for sexual...

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How stress affects your learning

October, 2012A small study shows that stress makes it more likely for learning to use more complicated and subconscious processes that involve brain regions involved in habit and procedural learning.We...

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Why acute stress makes it hard to think properly

October, 2012A rat study indicates that acute stress disrupts feedback loops in the prefrontal cortex that may be keeping information alive in working memory.Stress is a major cause of workplace...

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Even tiny interruptions can double or treble work errors

January, 2013A new study quantifies the degree to which tasks that involve actions in a precise sequence are vulnerable to interruptions.In my book on remembering intentions, I spoke of how quickly and...

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Gum disease may have ties to Alzheimer’s

Analysis of post-mortem with and without dementia has found lipopolysaccharide, a component of an oral bacterium (Porphyromonas gingivalis), in four out of 10 Alzheimer’s disease brain samples, but not...

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Interruptions impact the quality of creative work

In 2013 I reported how a 3-second interruption while doing a task doubled the rate of sequence errors, while a 4s one tripled it. A new study has attempted to measure just how much ongoing...

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Gentle exercise during chemotherapy has significant cognitive benefits

A six-week study involving 619 cancer patients has found that those who took part in a simple home-based exercise program significantly reduced their cognitive impairment ('chemo-brain'). The EXCAP...

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