ArticleScience advances2023
A cortical zoom-in operation underlies covert shifts of visual spatial attention.
Article in Science advances, 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, 11 citations in OpenAlex.
- Dynamic modulation of location-based surround suppression by feature salience and stimulus presentation time.Attention, perception & psychophysics · 2026Article
- Article
- Perceptual training of audiovisual simultaneity judgments generalizes across spatial locations.Perception · 2025Article
- Dynamic estimation of the attentional field from visual cortical activity.bioRxiv : the preprint server for biology · 2025Article
- Neural mechanisms of resource allocation in working memory.Science advances · 2025Article
- Dynamic modulation of spatial selection: Online and anticipatory adjustments in the flanker task.Attention, perception & psychophysics · 2025Article
- Statistical learning re-shapes the center-surround inhibition of the visuo-spatial attentional focus.Scientific reports · 2025Article
- Parallel gain modulation mechanisms set the resolution of color selectivity in human visual cortex.Science advances · 2024Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Shifting the focus of attention without moving the eyes poses challenges for signal coding in visual cortex in terms of spatial resolution, signal routing, and cross-talk. Little is known how these problems are solved during focus shifts. Here, we analyze the spatiotemporal dynamic of neuromagnetic activity in human visual cortex as a function of the size and number of focus shifts in visual search. We find that large shifts elicit activity modulations progressing from highest (IT) through mid-level (V4) to lowest hierarchical levels (V1). Smaller shifts cause those modulations to start at lower levels in the hierarchy. Successive shifts involve repeated backward progressions through the hierarchy. We conclude that covert focus shifts arise from a cortical coarse-to-fine process progressing from retinotopic areas with larger toward areas with smaller receptive fields. This process localizes the target and increases the spatial resolution of selection, which resolves the above issues of cortical coding.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.