Time and space are inextricably linked. It is difficult to talk about time without borrowing a spatial metaphor: time “passes” as we “move” through it. We look “forward” to the future and “back” on our past. The same hippocampal-entorhinal system tracks movement through time. Work done largely in the lab of the late Howard Eichenbaum of Boston University revealed neurons in the hippocampal-entorhinal system that encode the time course of an animal’s experience. Time cells fire at successive moments but do not track time in a simple clocklike fashion. Instead they mark temporal context—stretching or shrinking their firing durations if the length of a task changes, for example. Some time cells encode space as well. In the brain, in fact, physical and temporal space may be bound together.
https://www.scientificamerican.com/article/in-search-of-the-brains-social-road-maps/
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