Neural and Behavioral Psychology Studies
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Abstract
Abstract
Information held in working memory (WM) is remarkably resilient to distraction. Yet, perceptual distractors that share mnemonic features can impact WM profoundly; the neural basis of this phenomenon remains unclear. With multivariate decoding of human electroencephalography recordings, we investigate how delay-period perceptual distractors bias WM. Participants memorized the orientations of cued and uncued grating memoranda that appeared in opposite hemifields. A grating distractor, flashed during the delay period, produces space-specific biases: memorized features are attracted towards or repelled away from the distractor’s orientation depending, respectively, on when the distractor appeared in the same hemifield as the memorandum, or opposite to it. Neural prioritization in WM by cueing, and stronger memorandum maintenance mitigate this bias, whereas stronger distractor encoding enhances it. Lastly, a ring-attractor model with cross-hemifield inhibition mechanistically explains the origins of these spatially-antagonistic biases. Our results reveal how lateralized sensory buffers critically enable perceptual distractors to bias visual WM.
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@article{Raya2026Neural,
title = {Neural bases of space-specific distractor biases in visual working memory},
author = {Deepak Velgapuni Raya and Sanchit Gupta and Devarajan Sridharan},
journal = {eLife},
year = {2026},
doi = {10.7554/elife.111096.1},
url = {https://doi.org/10.7554/elife.111096.1}
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