ArticleProceedings of the National Academy of Sciences of the United States of America2023
Ripples in macaque V1 and V4 are modulated by top-down visual attention.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Cross-region neuron co-firing mediated by ripple oscillations supports distributed working memory representations.Nature neuroscience · 2026Article
- Ripple contributions to human memory: making the spiking content count.Nature reviews. Neuroscience · 2025Review
- Cross-region neuron co-firing mediated by ripple oscillations supports distributed working memory representations.bioRxiv : the preprint server for biology · 2025Article
- Excitatory/inhibitory ratio disruption modulates neural synchrony and flow directions in a cortical microcircuit.PLoS computational biology · 2025Article
- High frequency oscillations in human memory and cognition: a neurophysiological substrate of engrams?Brain : a journal of neurology · 2024Review
- Coupled oscillations orchestrate selective information transmission in visual cortex.PNAS nexus · 2024Article
- Topographic organization across foveal visual areas in macaques.Frontiers in neuroanatomy · 2024Article
- Ripples in macaque V1 and V4 are modulated by top-down visual attention.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
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Authors and funding
6 authors.
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Abstract
Sharp-wave ripples (SWRs) are highly synchronous neuronal activity events. They have been predominantly observed in the hippocampus during offline states such as pause in exploration, slow-wave sleep, and quiescent wakefulness. SWRs have been linked to memory consolidation, spatial navigation, and spatial decision-making. Recently, SWRs have been reported during visual search, a form of remote spatial exploration, in macaque hippocampus. However, the association between SWRs and multiple forms of awake conscious and goal-directed behavior is unknown. We report that ripple activity occurs in macaque visual areas V1 and V4 during focused spatial attention. The occurrence of ripples is modulated by stimulus characteristics, increased by attention toward the receptive field, and by the size of the attentional focus. During attention cued to the receptive field, the monkey's reaction time in detecting behaviorally relevant events was reduced by ripples. These results show that ripple activity is not limited to hippocampal activity during offline states, rather they occur in the neocortex during active attentive states and vigilance behaviors.
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