"Clinically, this is important because there are people with only short-term memory problems and others with only long-term memory problems. The researchers also found that individuals that had lower cognitive function had larger and longer-lasting memory improvement as a result of the treatment. Sending high-frequency signals into the brain improved long-term memory after Day 2, as well as after a month. The researchers found that after three or four days of applying low-frequency electrical signals to the brain, patients exhibited better short-term memory, and the improvements remained a month later. Both methods were tested against a placebo in a randomized double-blind trial. Two different treatment methods were tested: one targeting short-term memory with low-frequency stimulation and another for improving long-term memory with high-frequency stimulation in the brain's prefrontal cortex. Each day, the patients were given a list of 20 words and were asked to memorize and immediately recite the words. In the study, patients received electrical brain stimulation for 20 minutes for four consecutive days. A factor greatly contributing to these costs is the impairment in basic memory systems essential for activities of everyday life, such as making financial decisions or understanding language," lead researcher Robert Reinhart said in a news release published Monday. "An increasingly older population leads to additional personal, social, healthcare and economic costs. Their treatment involves a wearable cap equipped with electrodes that sends electrical signals into the brain, and researchers say this could help improve memory function. Researchers from Boston University outlined their findings in a paper published in Nature Neuroscience last week. More than 747,000 Canadians currently live with Alzheimer's and other forms of dementia, but a new study suggests age-related memory loss could be reversed with a 20-minute non-invasive treatment.
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