Hippocampal astrocytic sequences emerge during learning and memory recall

Nature Neuroscience, Published online: 16 September 2026; doi:10.1038/s41593-026-02448-0

Senne, Suthard and colleagues show that dorsal hippocampal astrocytes display time-compressed calcium-event sequences after foot shock and upon context re-exposure, and that their spontaneous activity relates to freezing and implicates astrocytes in associative memory.