Attention to memory content enhances single-unit spike sequence fidelity in the human anterior temporal lobe

Current Biology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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A non-Hebbian code for episodic memory

Science Advances, Год журнала: 2025, Номер 11(8)

Опубликована: Фев. 21, 2025

Hebbian plasticity has long dominated neurobiological models of memory formation. Yet, rules operating on one-shot episodic timescales rarely depend both pre- and postsynaptic spiking, challenging theory in this crucial regime. Here, we present an model governed by a simpler rule depending only presynaptic activity. We show that rule, capitalizing high-dimensional neural activity with restricted transitions, naturally stores episodes as paths through complex state spaces like those underlying world model. The resulting traces, which term path vectors, are highly expressive decodable odor-tracking algorithm. vectors robust alternatives to support sequential associative recall, along policy learning, shed light specific hippocampal rules. Thus, non-Hebbian is sufficient for flexible learning well-suited encode policies

Язык: Английский

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A 3D-printed modular implant for extracellular recordings

Journal of Neuroscience Methods, Год журнала: 2025, Номер 418, С. 110407 - 110407

Опубликована: Фев. 27, 2025

Язык: Английский

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On the origin of memory neurons in the human hippocampus

Trends in Cognitive Sciences, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Key-value memory in the brain

Neuron, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Episodic Memory in Animals

Philosophy Compass, Год журнала: 2025, Номер 20(5)

Опубликована: Апрель 30, 2025

ABSTRACT Do animals have episodic memory—the kind of memory which gives us rich details about particular past events—or is this uniquely human? This might look like an empirical question, but attracting increasing philosophical attention. We review relevant behavioural evidence, as well drawing attention to neuroscientific and computational evidence has been less discussed in philosophy. Next, we distinguish evaluate reasons for scepticism animals. In the process, articulate three pressing issues underlying these sceptical arguments, should be focus future work. The Problem Interspecific Variation asks differences between humans animal mean that a variant memory, it different altogether. Functional how conceptualise functions other capacities across species evolutionary time. Finally, Alternatives what, besides explain evidence—and competing explanations.

Язык: Английский

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Cognitive control of memory in a food-storing and a non-storing bird species

Animal Cognition, Год журнала: 2025, Номер 28(1)

Опубликована: Май 5, 2025

Язык: Английский

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Responses of coal tits (Periparus ater) to aversive food: insights into hoarding motivation and memory

Animal Cognition, Год журнала: 2025, Номер 28(1)

Опубликована: Июнь 5, 2025

Язык: Английский

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Hippocampal representations of alternative possibilities are flexibly generated to meet cognitive demands

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Сен. 23, 2024

The cognitive ability to go beyond the present consider alternative possibilities, including potential futures and counterfactual pasts, can support adaptive decision making. Complex changing real-world environments, however, have many possible alternatives. Whether how brain select among them represent alternatives that meet current needs remains unknown. We therefore examined neural representations of spatial locations in rat hippocampus during navigation a complex patch foraging environment with reward probabilities. found multiple along paths ahead behind animal, distant patches. Critically, these were modulated distinct patterns across successive trials: represented proportionate their evolving relative value predicted subsequent decisions, whereas prevalent updating. These results demonstrate modulates generation possibilities for behavior.

Язык: Английский

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Mental Time Travel: A Retrospective

Hippocampus, Год журнала: 2024, Номер 35(1)

Опубликована: Дек. 16, 2024

Because imagination activates the same neural circuits used in understanding present, one can access that even non-linguistic animals through decoding techniques applied to large ensembles. This personal retrospective traces history of initial discovery hippocampal theta sequences sweep forward goals during moments deliberation and discusses was necessary put ourselves position recognize this signal. It also how fits into larger picture function concept cognition as computation.

Язык: Английский

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