Read this story in Slashdot.
A new study has discovered that brain stimulation may reverse a decline in memory. An anonymous Slashdot reader shares the findings using a report by The Guardian: The analysis focused on a component of cognition the mind system that holds information while we are making decisions or doing calculations. Working memory is crucial for a wide variety of tasks, such as recognizing faces, doing arithmetic and navigating a fresh atmosphere. Working memory is known to steadily decrease with age, even in the absence of any kind of dementia. One factor in this decline is supposed to be a disconnection between two mind networks. In young individuals, the electrical brain activity in these two regions will be synchronized, which scientists think allows information to be exchanged between the two brain areas. In older people the activity tends to be tightly synchronized. This might be as result of corrosion of those long-range nerve connections that link up the different parts of the brain.

In the study, published in the journal Nature Neuroscience, 42 people aged 60 — 76. The group were slower and less accurate on the evaluations. The scientists then subjected them to 25 minutes of nonstop brain stimulation. This aimed to synchronize both goal brain areas by passing gentle pulses of electricity into the mind and throughout the scalp. After the intervention, working memory at the adults improved to coincide with the younger group and the effect seemed to last for 50 minutes. People who’d scored worst to begin with showed the advances.