Hippocampal sequence-encoding driven by a cortical multi-item working memory buffer
@article{Jensen2005HippocampalSD, title={Hippocampal sequence-encoding driven by a cortical multi-item working memory buffer}, author={Ole Jensen and John E. Lisman}, journal={Trends in Neurosciences}, year={2005}, volume={28}, pages={67-72} }
442 Citations
Hippocampal Sequences During Exploration: Mechanisms and Functions
- Biology, PsychologyFront. Cell. Neurosci.
- 2019
Several lines of evidence are presented suggesting that these neural sequences play a key role in information processing and support the formation of initial memory traces, and potential functional distinctions between neural sequences emerging during theta vs. awake sharp-wave ripples are discussed.
Hippocampus dependent and independent theta-networks ofworking memory maintenance
- Biology, Psychology
- 2010
The results demonstrate that working memory maintenance of configural-relational information is supported by a theta synchronous network coupling frontal, temporal and occipital visual areas, and that this theta synchrony is critically dependent on the integrity of the hippocampus.
Phase-dependent neuronal coding of objects in short-term memory
- Psychology, BiologyProceedings of the National Academy of Sciences
- 2009
This work shows that neuronal information about two objects held in short-term memory is enhanced at specific phases of underlying oscillatory population activity, and suggests that oscillatory neuronal synchronization mediates a phase-dependent coding of memorized objects in the prefrontal cortex.
The hippocampus: a special place for time
- Biology, PsychologyAnnals of the New York Academy of Sciences
- 2016
The findings converge toward the idea that the hippocampus is essential for learning sequences of events, allowing the brain to distinguish between memories for conceptually similar but temporally distinct episodes, and to associate representations of temporally contiguous, but otherwise unrelated experiences.
Maintenance of multiple working memory items by temporal segmentation
- Biology, PsychologyNeuroscience
- 2006
Fast-backward replay of sequentially memorized items in humans
- Biology, PsychologybioRxiv
- 2018
It is demonstrated that serially remembered items are successively reactivated during memory retention and the sequential replay displays two interesting properties compared to the actual sequence, suggesting that external events are associated within a plasticity-relevant window to facilitate memory consolidation.
Matching storage and recall: hippocampal spike timing–dependent plasticity and phase response curves
- BiologyNature Neuroscience
- 2005
A normative theory of autoassociative memory encompassing network dynamics of hippocampus area CA3 is developed and it is demonstrated directly that the attributes of phase response curves of CA3 pyramidal cells recorded in vitro qualitatively conform with the theory.
An event map of memory space in the hippocampus
- Psychology, BiologyeLife
- 2016
Monitoring the de novo formation of a spatio-temporal representation of space and time in humans using fMRI provides evidence for a common coding mechanism underlying spatial and temporal aspects of episodic memory in the hippocampus and sheds new light on its role in interleaving multiple episodes in a neural event map of memory space.
A model of working memory for encoding multiple items and ordered sequences exploiting the theta-gamma code
- BiologyCognitive Neurodynamics
- 2022
This work presents an original neural network model, based on oscillating neural masses, to investigate mechanisms at the basis of working memory in different conditions, and shows that this model, with different synapse values, can be used to address different problems, such as the reconstruction of an item from partial information, the maintenance of multiple items simultaneously in memory, without any sequential order.
Electrophysiological signature of working and long‐term memory interaction in the human hippocampus
- Psychology, BiologyThe European journal of neuroscience
- 2010
Time‐frequency analysis revealed that a reduction of slow hippocampal activity in the delta frequency range supported LTM formation in the low load condition, but not during high WM load, which indicates that multi‐item WM and LTM encoding interfere within the hippocampus.
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