ArticleCerebral cortex (New York, N.Y. : 1991)2018
Selective Changes in Noise Correlations Contribute to an Enhanced Representation of Saccadic Targets in Prefrontal Neuronal Ensembles.
Article in Cerebral cortex (New York, N.Y. : 1991), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- The spatial frequency representation predicts category coding in the inferior temporal cortex.eLife · 2025Article
- The impact of spatial frequency on hierarchical category representation in macaque temporal cortex.Communications biology · 2025Article
- Refixation behavior in naturalistic viewing: Methods, mechanisms, and neural correlates.Attention, perception & psychophysics · 2025Review
- A new approach for neural decoding by inspiring of hyperdimensional computing for implantable intra-cortical BMIs.Scientific reports · 2024Article
- Training-Dependent Gradients of Timescales of Neural Dynamics in the Primate Prefrontal Cortex and Their Contributions to Working Memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- Models developed for spiking neural networks.MethodsX · 2023Article
- Neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex.Scientific reports · 2022Article
- Cognitive strategies shift information from single neurons to populations in prefrontal cortex.Neuron · 2022Article
- Frontotemporal coordination predicts working memory performance and its local neural signatures.Nature communications · 2021Article
- Information-Limiting Correlations in Large Neural Populations.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- Distinct Sources of Variability Affect Eye Movement Preparation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Article
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5 authors.
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Abstract
abstarctAn ensemble of neurons can provide a dynamic representation of external stimuli, ongoing processes, or upcoming actions. This dynamic representation could be achieved by changes in the activity of individual neurons and/or their interactions. To investigate these possibilities, we simultaneously recorded from ensembles of prefrontal neurons in non-human primates during a memory-guided saccade task. Using both decoding and encoding methods, we examined changes in the information content of individual neurons and that of ensembles between visual encoding and saccadic target selection. We found that individual neurons maintained their limited spatial sensitivity between these cognitive states, whereas the ensemble selectively improved its encoding of spatial locations far from the neurons' preferred locations. This population-level "encoding expansion" was not due to the ceiling effect at the preferred locations and was accompanied by selective changes in noise correlations for non-preferred locations. Moreover, the encoding expansion was observed for ensembles of different types of neurons and could not be explained by shifts in the preferred location of individual neurons. Our results demonstrate that the representation of space by neuronal ensembles is dynamically enhanced prior to saccades, and this enhancement occurs alongside changes in noise correlations more than changes in the activity of individual neurons.
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