Scientists have made a groundbreaking discovery in the field of neuroscience, identifying specific neurons that play a crucial role in recalling episodic memories. The study, led by the University of Glasgow and published in Nature Human Behaviour, found that these “episode-specific” neurons reactivate neural assemblies when we recall a memory, essentially acting as the “glue” that keeps all the elements of an episode together.
The researchers used special electrodes implanted in the brains of epilepsy patients to observe the activity of individual neurons in the hippocampus region. The hippocampus is responsible for storing and retrieving memories, and this study has shed new light on how it works.
During memory formation, the information is processed in the neocortex and linked to specific groups of neurons in the hippocampus. When we recall a memory, these episode-specific neurons reactivate the neural assembly, allowing us to relive the experience.
The researchers believe that stimulating these neurons during memory retrieval could aid recall for individuals with memory problems, such as Alzheimer’s disease or dementia. This discovery has significant potential for the development of neuroprosthetic devices that can help patients suffering from these conditions.
Dr. Luca Kolibius, lead author of the study, said, “The neurons we discovered are acting as our brain’s memory guide, helping us access and retrieve our cherished memories.” The researchers are excited about their findings and look forward to testing whether stimulating these neurons can indeed trigger the recall of memories in the future.
Source: https://medicalxpress.com/news/2023-10-scientists-neurons-brain-recall-memories.html