Study shows how brain forms memories

Washington:  Scientists have discovered how memories are stored in specific brain cells. The new study also pinpoints how these incidents are recalled.

Using a video game in which people navigate through a virtual town delivering objects to specific locations, a team of neuroscientists from the University of Pennsylvania and Freiburg University has discovered how brain cells that encode spatial information form "geotags" for specific memories, and are activated immediately before those memories are recalled.

Their work showed how spatial information is incorporated into memories, and why remembering an experience can quickly bring other events to mind that happened in the same place, reports the Science Daily.

"These findings provide the first direct neural evidence for the idea that the human memory system tags memories with information about where and when they were formed, and that the act of recall involves the reinstatement of these tags," said Michael Kahana, professor of psychology in Penn's School of Arts and Sciences.

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