Projects per year
Abstract
When two objects are presented in alternation at two locations, they are seen as a single object moving from one location to the other. This apparent motion (AM) percept is experienced for objects located at short and also at long distances. However, current models cannot explain how the brain integrates information over large distances to create such long-range AM. This study investigates the neural markers of AM by parcelling out the contribution of spatial and temporal interactions not specific to motion. In two experiments, participants’ EEG was recorded while they viewed two stimuli inducing AM. Different combinations of these stimuli were also shown in a static context to predict an AM neural response where no motion is perceived. We compared the goodness of fit between these different predictions and found consistent results in both experiments. At short-range, the addition of the inhibitory spatial and temporal interactions not specific to motion improved the AM prediction. However, there was no indication that spatial or temporal non-linear interactions were present at long-range. This suggests that short- and long-range AM rely on different neural mechanisms. Importantly, our results also show that at both short- and long-range, responses generated by a moving stimulus could be well predicted from conditions in which no motion is perceived. That is, the EEG response to a moving stimulus is simply a combination of individual responses to non-moving stimuli. This demonstrates a dissociation between the brain response and the subjective percept of motion.
Original language | English |
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Article number | 116973 |
Number of pages | 13 |
Journal | NeuroImage |
Volume | 218 |
Early online date | 25 May 2020 |
DOIs | |
Publication status | Published - Sept 2020 |
Keywords
- Apparent motion
- EEG
- Long-range
- Short-range
- Spatio-temporal interactions
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Dive into the research topics of 'Neural responses to apparent motion can be predicted by responses to non-moving stimuli'. Together they form a unique fingerprint.Projects
- 1 Finished
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Understanding Neural Mechanisms: understanding the neural mechanisms for perceiving long-range motion
Ales, J. (PI)
1/04/17 → 30/09/20
Project: Standard
Profiles
Datasets
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Neural responses to apparent motion can be predicted by responses to non-moving stimuli (dataset)
Poncet, M. F. (Creator) & Ales, J. M. (Creator), OSF, 2020
Dataset