ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2022
Retrosplenial and Hippocampal Synchrony during Retrieval of Old Memories in Macaques.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 8 citations in OpenAlex.
- Experience reorganizes content-specific memory traces in macaques.Nature neuroscience · 2026Article
- Closed-loop control of theta oscillations enhances human hippocampal network connectivity.Nature communications · 2025Article
- Circuit dynamics of superficial and deep CA1 pyramidal cells and inhibitory cells in freely moving macaques.Cell reports · 2024Article
- Circuit dynamics of superficial and deep CA1 pyramidal cells and inhibitory cells in freely-moving macaques.bioRxiv : the preprint server for biology · 2024Article
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- Review
- Optogenetic inhibition of either the anterior or posterior retrosplenial cortex disrupts retrieval of a trace, but not delay, fear memory.Neurobiology of learning and memory · 2021Article
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Authors and funding
3 authors at 1 institution in 2 countries.
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Abstract
Memory for events from the distant past relies on multiple brain regions, but little is known about the underlying neural dynamics that give rise to such abilities. We recorded neural activity in the hippocampus and retrosplenial cortex of two female rhesus macaques as they visually selected targets in year-old and newly acquired object-scene associations. Whereas hippocampal activity was unchanging with memory age, the retrosplenial cortex responded with greater magnitude alpha oscillations (10-15 Hz) and greater phase locking to memory-guided eye movements during retrieval of old events. A similar old-memory enhancement was observed in the anterior cingulate cortex but in a beta2/gamma band (28-35 Hz). In contrast, remote retrieval was associated with decreased gamma-band synchrony between the hippocampus and each neocortical area. The increasing retrosplenial alpha oscillation and decreasing hippocampocortical synchrony with memory age may signify a shift in frank memory allocation or, alternatively, changes in selection among distributed memory representations in the primate brain.
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Registered trials
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