Researchers uncover how the human brain separates, stores, and retrieves memories
The study was supported by the National Institutes of Health's Brain Research Through Advancing Innovative Neurotechnologies Initiative and published in"This work is transformative in how the researchers studied the way the human brain thinks," said Jim Gnadt, Ph.D., program director at the National Institute of Neurological Disorders and Stroke and the NIH BRAIN Initiative.
The first type, referred to as a"soft boundary," is a video containing a scene that then cuts to another scene that continues the same story. For example, a baseball game showing a pitch is thrown and, when the batter hits the ball, the camera cuts to a shot of the fielder making a play. In contrast, a"hard boundary" is a cut to a completely different story -- imagine if the batted ball were immediately followed by a cut to a commercial.
One analogy to how memories might be stored and accessed in the brain is how photos are stored on your phone or computer. Often, photos are automatically grouped into events based on when and where they were taken and then later displayed to you as a key photo from that event. When you tap or click on that photo, you can drill down into that specific event.
The second test involved showing pairs of images taken from film clips that they had just watched. The participants were then asked which of the two images had appeared first. It turned out that they had a much harder time choosing the correct image if the two occurred on different sides of a hard boundary, possibly because they had been placed in different"events."
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