dentate gyrus

Published research on dentate gyrus.

BrainMay 27, 2026

Adult Hippocampal Neurogenesis Added 670,000 Rat Dentate Neurons

A 2026 rat study estimated that adult hippocampal neurogenesis added 670,000 dentate gyrus granule neurons from 2 to 18 months of age, but the total dentate gyrus population grew by only 385…

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BrainMay 14, 2026

PTSD Trauma Memories Are Encoded in Hippocampal Semantic Maps

A 2026 fMRI study of 79 women with interpersonal-violence-related PTSD found that the hippocampus does encode the meaning of autobiographical trauma narratives, t(140) = 4.05, p < 0.001, eve…

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