ArticlePLoS biology2020
Delay-period activity in frontal, parietal, and occipital cortex tracks noise and biases in visual working memory.
Article in PLoS biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 35 citations in OpenAlex.
- Neural Mechanisms of Bidirectional Visuo-Linguistic Transformation in Interactive Communication.Human brain mapping · 2026Article
- Dynamics of working memory drift and information flow across the cortical hierarchy.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Computational basis of hierarchical and counterfactual information processing.Nature human behaviour · 2025Article
- The effects of the post-delay epochs on working memory error reduction.PLoS computational biology · 2025Article
- Neuroimaging differences between chronic migraine with and without medication overuse headache: a 7 Tesla multimodal MRI study.The journal of headache and pain · 2025Article
- The human posterior parietal cortices orthogonalize the representation of different streams of information concurrently coded in visual working memory.PLoS biology · 2024Article
- Article
- Geometry of visuospatial working memory information in miniature gaze patterns.Nature human behaviour · 2024Article
- Mechanisms regulating the properties of inhibition-based gamma oscillations in primate prefrontal and parietal cortices.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Neurodynamic correlates for the cross-frequency coupled transcranial alternating current stimulation during working memory performance.Frontiers in neuroscience · 2022Article
- Balancing Flexibility and Interference in Working Memory.Annual review of vision science · 2021Review
- The Neural Codes Underlying Internally Generated Representations in Visual Working Memory.Journal of cognitive neuroscience · 2021Article
- The Spontaneous Activity Pattern of the Middle Occipital Gyrus Predicts the Clinical Efficacy of Acupuncture Treatment for Migraine Without Aura.Frontiers in neurology · 2020Article
- Neuroimaging and the localization of function in visual cognition.Visual cognition · 2020Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
Abstract
Working memory is imprecise, and these imprecisions can be explained by the combined influences of random diffusive error and systematic drift toward a set of stable states ("attractors"). However, the neural correlates of diffusion and drift remain unknown. Here, we investigated how delay-period activity in frontal and parietal cortex, which is known to correlate with the decline in behavioral memory precision observed with increasing memory load, might relate to diffusion and drift. We analyzed data from an existing experiment in which subjects performed delayed recall for line orientation, at different loads, during functional magnetic resonance imaging (fMRI) scanning. To quantify the influence of drift and diffusion, we modeled subjects' behavior using a discrete attractor model and calculated within-subject correlation between frontal and parietal delay-period activity and whole-trial estimates of drift and diffusion. We found that although increases in frontal and parietal activity were associated with increases in both diffusion and drift, diffusion explained the most variance in frontal and parietal delay-period activity. In comparison, a subsequent whole-brain regression analysis showed that drift, rather than diffusion, explained the most variance in delay-period activity in lateral occipital cortex. These results are consistent with a model of the differential recruitment of general frontoparietal mechanisms in response to diffusive noise and of stimulus-specific biases in occipital cortex.
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