The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Top-down flow of visual spatial attention signals from parietal to occipital cortex
Open accessAbstract
Given the complexity of our visual environment, the ability to selectively attend to certain locations, while ignoring others, is crucial for reducing the amount of visual information to manageable levels and for optimizing behavioral performance. Sustained allocation of spatial attention causes persistent increases in functional magnetic resonance imaging (fMRI) signals in portions of early visual cortex that retinotopically represent the attended location, even in the absence of a visual stimulus. Here we test the hypothesis that topographically organized posterior parietal cortical areas IPS1 and IPS2 transmit top-down spatial attention signals to early visual cortex. We employed fMRI and coherency analysis to measure functional connectivity among cortical areas V1, V2, V3, V3A, V3B, V7, IPS1, and IPS2 during sustained visual spatial attention. Attention increased the magnitude of coherency for many pairs of areas in occipital and parietal cortex. Additionally, attention-related activity in IPS1 and IPS2 led activity in several visual cortical areas by a few hundred milliseconds. These results are consistent with transmission of top-down spatial attention signals from IPS1 and IPS2 to early visual cortex.
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Cites
SPACE AND ATTENTION IN PARIETAL CORTEX
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Shmuel, A., & Leopold, D. A. (2008) · Human Brain Mapping · doi:10.1002/hbm.20580 · Cited by 584
Cited by
Topographic maps in human frontal and parietal cortex
Silver, M. A., & Kastner, S. (2009) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2009.08.005 · Cited by 554
Self-citationImaging retinotopic maps in the human brain
Wandell, B. A., & Winawer, J. (2011) · Vision Research · doi:10.1016/j.visres.2010.08.004 · Cited by 373
Attentional enhancement of spatial resolution: linking behavioural and neurophysiological evidence
Anton-Erxleben, K., & Carrasco, M. (2013) · Nature Reviews Neuroscience · doi:10.1038/nrn3443 · Cited by 289
Dodds, C. M., Morein-Zamir, S., & Robbins, T. W. (2011) · Cerebral Cortex · doi:10.1093/cercor/bhq187 · Cited by 270
“parietal regions and lower level sensory-specific cortex (Gazzaley et al. 2007; Browning et al. 2009; Lauritzen et al. 2009).”
BackgroundThe neural correlates of visual imagery: A co-ordinate-based meta-analysis
Winlove, C. I. P., Milton, F., Ranson, J., Fulford, J., MacKisack, M., Macpherson, F., & Zeman, A. (2018) · Cortex · doi:10.1016/j.cortex.2017.12.014 · Cited by 150
Metadata
- Authors
- Lauritzen, T. Z., D'Esposito, M., Heeger, D. J., & Silver, M. A.
- Venue
- Journal of Vision
- Published
- 2009-12-01
- Volume
- 9
- Issue
- 13
- Pages
- 18-18
- ISSN
- 1534-7362 (ISSN-L)
- OpenAlex
- W2119130323
- Cited by
- 158
- References
- 4
- FWCI
- 5.02
- Type
- journal article
- Language
- en
- Open access
- gold
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- Lauritzen, T. Z., D'Esposito, M., Heeger, D. J., & Silver, M. A. (2009). Top-down flow of visual spatial attention signals from parietal to occipital cortex. Journal of Vision. https://doi.org/10.1167/9.13.18
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