Decoding the Direction of Bistable Illusory Motion from Source-Reconstructed MEG Signals.
5 affiliations
- 1School of Psychology, University of Sussex, Brighton BN1 9QH, United Kingdom.
- 2Department of Psychology, University of York, York YO10 5DD, United Kingdom.
- 3York Biomedical Research Institute, University of York, York YO10 5DD, United Kingdom.
- 4Department of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht 6229 EV, The Netherlands.
- 5Department of Psychology, University of York, York YO10 5DD, United Kingdom [email protected].
Abstract
Motion perception involves both bottom-up sensory processing and top-down perceptual interpretation. Using magnetoencephalography frequency tagging and source-space multivariate pattern analysis, we decoded the perceived direction of both real and bistable apparent motion from cortical activity in 11 human participants (six males, five females). Real motion direction was decoded with near-ceiling accuracy across frequencies in both whole-brain and visual cortex analyses, whereas apparent motion direction was decoded just above chance from the visual cortex (56.0%, p = 0.011, Cohen's d = 0.94) when combining the 5 and 7.5 Hz harmonics. Activation patterns showed a larger relative hMT⁺ contribution for apparent than real motion, and cross-classification did not generalize direction information between conditions. These results identify a measurable cortical signature of subjective motion direction but also show that it is relatively diffuse and only weakly bound to the retinotopic cortex.
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BibTeX
@article{karapanagiotidis2026decoding,
title = {{Decoding the Direction of Bistable Illusory Motion from Source-Reconstructed MEG Signals.}},
author = {Theodoros Karapanagiotidis and Antony B Morland and Rainer Goebel and Elia Formisano and Alex R Wade},
journal = {ENeuro},
year = {2026},
month = oct,
doi = {10.1523/eneuro.0191-26.2026},
url = {https://europepmc.org/article/MED/42850074},
note = {CC BY},
}
RIS
TY - JOUR
TI - Decoding the Direction of Bistable Illusory Motion from Source-Reconstructed MEG Signals.
AU - Theodoros Karapanagiotidis
AU - Antony B Morland
AU - Rainer Goebel
AU - Elia Formisano
AU - Alex R Wade
PY - 2026
DA - 2026/10/08
JO - ENeuro
DO - 10.1523/eneuro.0191-26.2026
UR - https://europepmc.org/article/MED/42850074
AB - Motion perception involves both bottom-up sensory processing and top-down perceptual interpretation. Using magnetoencephalography frequency tagging and source-space multivariate pattern analysis, we decoded the perceived direction of both real and bistable apparent motion from cortical activity in 11 human participants (six males, five females). Real motion direction was decoded with near-ceiling accuracy across frequencies in both whole-brain and visual cortex analyses, whereas apparent motion direction was decoded just above chance from the visual cortex (56.0%, p = 0.011, Cohen's d = 0.94) when combining the 5 and 7.5 Hz harmonics. Activation patterns showed a larger relative hMT⁺ contribution for apparent than real motion, and cross-classification did not generalize direction information between conditions. These results identify a measurable cortical signature of subjective motion direction but also show that it is relatively diffuse and only weakly bound to the retinotopic cortex.
SN - 2373-2822
ER -