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Memories occur when specific groups of neurons are reactivated. In the brain, any stimulus results in a particular pattern of neuronal activity—certain neurons become active in more or less a particular sequence. If you think of your cat, or your home, or your fifth birthday cake, different ensembles, or groups, of neurons become active.
Jul 21, 2016 · Once that memory forms the set of neurons that make up the engram are more likely to fire. Furthermore, more excitable neurons—that is, brain cells that activate easily—are more likely to be ...
Dec 9, 2020 · Study sheds light on how neurons form long-term memories. On a late summer day in 1953, a young man who would soon be known as patient H.M. underwent experimental surgery. In an attempt to treat his debilitating seizures, a surgeon removed portions of his brain, including part of a structure called the hippocampus. The seizures stopped.
Jan 4, 2024 · The aim of the mouse experiment led by Cogno was to find out how the brain organises experiences in specific sequences, so that we can navigate and remember things in a functioning way. From left: May-Britt Moser, Soledad Gonzalo Cogno, and Edvard Moser. (Photo: Kavli Institute for Systems Neuroscience)
Mar 7, 2022 · To retrieve memories, the brain uses boundary peaks as what Rutishauser calls “anchors for mental time travel.”. “When you try to remember something, it causes brain cells to fire,” Rutishauser said. “The memory system then compares this pattern of activity to all the previous firing peaks that happened shortly after boundaries.
Sensory memory is the first kind of memory that enters your brain: it lasts for a split second. The touch of your clothes against your skin, the smell of a bonfire. Unless we attend to that memory, it disappears for good. Give it some thought, however, and you will nudge it into your short-term memory.
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Nov 1, 2020 · The hippocampal–entorhinal region, situated in the medial temporal lobe of the human brain, is thought to be central for episodic memory. Theoretical accounts suggest that it forms networks of related experiences, for example, the different elements of an event sequence (Eichenbaum, Dudchenko, Wood, Shapiro, & Tanila, 1999; Eichenbaum & Cohen, 1988).
