The physical manifestation of a memory, or engram, consists of clusters of brain cells active when a specific memory was formed. When a memory is recalled, the cells within an engram reactivate and turn on, to varying degrees, other neural circuits (e.g., sight, sound, smell, emotions) that were active when that memory was recorded. Using an innovative technology developed by other researchers, called optogenetics, Ramirez’s team then discovered it could shine light onto a collection of hippocampal neurons storing a specific memory and reactivate the sensation associated with the memory . Such maps will be invaluable in determining how stress affects memory, as well as what goes wrong in dementia and other devastating memory disorders. Ramirez S, Liu X, Lin PA, Suh J, Pignatelli M, Redondo RL, Ryan TJ, Tonegawa S. Science.
At Wellness Axis we want to encourage habits of wellness, Increase awareness of factors and resources contributing to well-being, Inspire and empower individuals to take responsibility for their own health, and to support a sense of community. Wellness can be thought of as the quality or state of being in good health.