Academic Journal
Sustained attention operates via dissociable neural mechanisms across different eccentric locations
| Title: | Sustained attention operates via dissociable neural mechanisms across different eccentric locations |
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| Authors: | Tanagrit Phangwiwat, Phond Phunchongharn, Yodchanan Wongsawat, Itthi Chatnuntawech, Sisi Wang, Chaipat Chunharas, Thomas C. Sprague, Geoffrey F. Woodman, Sirawaj Itthipuripat |
| Source: | Sci Rep Res Sq Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024) |
| Publisher Information: | Research Square Platform LLC, 2023. |
| Publication Year: | 2023 |
| Subject Terms: | Male, Saccadic masking, Eye movement, Eye Movements, Biochemistry, Foveal, Neuronal Adaptation, Cognitive psychology, Retinal, Psychology, Attention, EEG, Neuronal Oscillations in Cortical Networks, Visual perception, Life Sciences, Neural Mechanisms of Cognitive Control and Decision Making, Electroencephalography, Stimulus (psychology), FOS: Philosophy, ethics and religion, FOS: Psychology, Visual Perception, Medicine, Female, Perceptual Learning, Adult, Neural Mechanisms of Visual Perception and Processing, Science, Cognitive Neuroscience, Article, 12. Responsible consumption, Eccentricity, Young Adult, Frontoparietal cortex, Attentional Networks, Humans, Visual cortex, Biology, SSVEP, Visual spatial attention, Linguistics, Philosophy, Foveal vision, FOS: Languages and literature, Evoked Potentials, Visual, Sensory system, Covert, Perception, Peripheral vision, Photic Stimulation, Neuroscience |
| Description: | In primates, foveal and peripheral vision have distinct neural architectures and functions. However, it has been debated if selective attention operates via the same or different neural mechanisms across eccentricities. We tested these alternative accounts by examining the effects of selective attention on the steady-state visually evoked potential (SSVEP) and the fronto-parietal signal measured via EEG from human subjects performing a sustained visuospatial attention task. With a negligible level of eye movements, both SSVEP and SND exhibited the heterogeneous patterns of attentional modulations across eccentricities. Specifically, the attentional modulations of these signals peaked at the parafoveal locations and such modulations wore off as visual stimuli appeared closer to the fovea or further away towards the periphery. However, with a relatively higher level of eye movements, the heterogeneous patterns of attentional modulations of these neural signals were less robust. These data demonstrate that the top-down influence of covert visuospatial attention on early sensory processing in human cortex depends on eccentricity and the level of saccadic responses. Taken together, the results suggest that sustained visuospatial attention operates differently across different eccentric locations, providing new understanding of how attention augments sensory representations regardless of where the attended stimulus appears. |
| Document Type: | Article Other literature type |
| ISSN: | 2045-2322 |
| DOI: | 10.21203/rs.3.rs-3562186/v1 |
| DOI: | 10.1038/s41598-024-61171-7 |
| DOI: | 10.60692/pxrw5-x6z62 |
| DOI: | 10.60692/w8vfq-2ac44 |
| Access URL: | https://pubmed.ncbi.nlm.nih.gov/38755251 https://pubmed.ncbi.nlm.nih.gov/37986807 https://doaj.org/article/ba88e565bd094388b5832cc33d82467c https://hdl.handle.net/1871.1/d5cb2db0-5414-4d00-82da-efd3def604f0 https://doi.org/10.1038/s41598-024-61171-7 https://research.vu.nl/en/publications/d5cb2db0-5414-4d00-82da-efd3def604f0 |
| Rights: | CC BY |
| Accession Number: | edsair.doi.dedup.....6b35cd3f4767ccd20451d63ef7861eea |
| Database: | OpenAIRE |
| ISSN: | 20452322 |
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| DOI: | 10.21203/rs.3.rs-3562186/v1 |