Episodic-like memory is preserved with age in cuttlefish.

ABSTRACT: Episodic memory, remembering past experiences based on unique what-where-when components, declines during ageing in humans, as does episodic-like memory in non-human mammals. By contrast, semantic memory, remembering learnt knowledge without recalling unique what-where-when features, remains relatively intact with advancing age. The age-related decline in episodic memory likely stems from the deteriorating function of the hippocampus in the brain. Whether episodic memory can deteriorate with age in species that lack a hippocampus is unknown. Cuttlefish are molluscs that lack a hippocampus. We test both semantic-like and episodic-like memory in sub-adults and aged-adults nearing senescence (n = 6 per cohort). In the semantic-like memory task, cuttlefish had to learn that the l

SUBMITTER: Schnell AK 

PROVIDER: S-EPMC8370807 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature