A severe traumatic brain injury can make it hard to remember recent events or conversations. But a form of brain stimulation appears to ease this memory deficit.
A precisely timed pulse to a brain area just behind the ear can help reduce memory deficits in patients suffering moderate to severe traumatic brain injuries.A precisely timed pulse to a brain area just behind the ear can help reduce memory deficits in patients suffering moderate to severe traumatic brain injuries.If you've ever had trouble finding your keys or remembering what you had for breakfast, you know that short-term memory is far from perfect.
. A precisely timed pulse to a brain area just behind the ear improved recall by about 20 percent and reduced the person's memory deficit by about half.If the results pan out in a larger study, the approach might improve the lives of many young people who survive a serious TBI, says Diaz-Arrastia, an author of the study and a professor of neurology at Penn.
The patients in this study had moderate to severe TBIs, which often result in permanent deficits in memory and thinking. More than 5 million people in the U.S. are living with a TBI-related disability.A disproportionate number of severe head injuries occur in young men who've been in a serious car or motorcycle crash, Diaz-Arrastia says. These patients may recover physically, but not mentally, he says, which means many never return to work.
To do that, the team first had to identify the patterns of electrical signals that are associated with retrieving – or failing to retrieve – a memory. And to monitor those signals, they needed patients who had electrodes in their brains.
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