Key brain mechanisms for organizing memories in time
In a scientific first, researchers at the University of California, Irvine have discovered fundamental mechanisms by which the hippocampus region of the brain organizes memories into sequences and how this can be used to plan future behavior. The finding may be a critical early step toward understanding memory failures in cognitive disorders such as Alzheimer's disease and other forms of dementia.
Obtained in millisecond intervals over several minutes, neuronal activity and inactivity measurements present a dynamic picture of the brain's functioning. Fortin said that he and his colleagues were, in some ways, able to"read the minds" of their subjects by viewing the"coding" of the cells -- which ones were firing and which were not -- in rapid succession."When you're thinking about something, it moves quickly," he said.
"These emerging neuroscience studies rely on data science methods because of the complexity of their data," said senior co-author Babak Shahbaba, UCI Chancellor's Fellow and professor of statistics."Brain activities are recorded at millisecond scale, and these experiments run for more than an hour, so you can imagine how fast the amount of data grows.
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