University of Toronto researchers say wearable camera acts as digital memory augmentation, allowing patients to better remember their lives
Led by Dr. Barense, seen here on Feb 26, 2019, an associate professor and Canada Research Chair in cognitive neuroscience, University of Toronto researchers have created an app that mimics the function of the hippocampus, an area of the brain that is typically ravaged early on in Alzheimer’s disease.published last year, scientists demonstrated that they could use implanted electrodes to record how participants’ brains responded to visual memory tests.
Dr. Barense and her team are still figuring out the optimal times and frequency at which the videos captured with the Hippocamera should be replayed. But in a spin-off study, they found participants were 10 times better at remembering material if they reviewed it immediately before going to sleep at night, compared with reviewing it after sleep.
Nearly three months later, participants remembered 40 per cent more details related to the events they had replayed during the initial two weeks of the experiment than those they never viewed. Brain scans also showed enhanced activity throughout their brains as they were asked to recall the events they had replayed.
Even simply reviewing Facebook or Instagram photos can help people strengthen their memories of certain aspects of their experiences, Dr. Rissman says. However, this could come at a cost of losing other details, he says. For instance, viewing photos of your last vacation will likely improve your memory for what happened when you took those photos, but other aspects of your vacation may be forgotten.What’s more, each time we retrieve a memory, it also becomes vulnerable to change, he says.
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