Academic Journal
Long-Term Variability in Visual Processing versus Perceptual Stability.
| Τίτλος: | Long-Term Variability in Visual Processing versus Perceptual Stability. |
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| Συγγραφείς: | Paulsen LB; Department of Linguistics, Cognitive Science and Semiotics, Aarhus University, Aarhus C 8000, Denmark laurabpaulsen@cc.au.dk dvidaurre@gmail.com.; Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus C 8000, Denmark., Masaracchia L; Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus C 8000, Denmark., Fardo F; Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus C 8000, Denmark., Ahrends C; Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus C 8000, Denmark.; Oxford Centre for Integrative Neuroimaging (OxCIN), University of Oxford, Oxford OX3 0BP, United Kingdom., Vidaurre D; Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus C 8000, Denmark laurabpaulsen@cc.au.dk dvidaurre@gmail.com.; Oxford Centre for Human Brain Activity (OHBA), Department of Psychiatry, University of Oxford, Oxford OX3 0BP, United Kingdom. |
| Πηγή: | ENeuro [eNeuro] 2026 Jun 22; Vol. 13 (6). Date of Electronic Publication: 2026 Jun 22 (Print Publication: 2026). |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Society for Neuroscience Country of Publication: United States NLM ID: 101647362 Publication Model: Electronic-Print Cited Medium: Internet ISSN: 2373-2822 (Electronic) Linking ISSN: 23732822 NLM ISO Abbreviation: eNeuro Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: [Washington, DC] : Society for Neuroscience, [2014]- |
| Ιατρικοί όροι (MeSH): | Visual Perception*/physiology , Brain*/physiology , Pattern Recognition, Visual*/physiology, Humans ; Female ; Magnetoencephalography ; Photic Stimulation ; Adult ; Time Factors ; Young Adult |
| Περίληψη: | Our brain is in constant change due to neural plasticity, but, still, our experience of the world feels relatively stable to us. Focusing on visual processing, we hypothesize that brain responses to stimuli may change over long periods of time, but in a way that is orthogonal to the dimensions that are relevant to stimulus category discrimination. To test this hypothesis, we acquired and analyzed a magnetoencephalography (MEG) dataset containing recordings from one female adult participant, with several scanning days spanning over 6 months. The participant passively attended to visual stimuli with the same stimulus presented within each session. We demonstrate that the specific scanning day can be predicted from the brain responses in a simple passive viewing paradigm, suggesting continuous temporal changes in neural activity over long time scales. However, information from one scanning day could be used to robustly decode the animacy of objects on a different scanning day, and importantly, decoding accuracy did not suffer with increasing time intervals between scans. That is, cross-decoding accuracy remained stable over months, despite between-scanning-day variability. These findings suggest that while processing of visual stimuli shows variability over long time scales, the core neural structure underlying object recognition remains stable and non-stimulus-specific. The results were validated in the open-access THINGS-MEG dataset, which employs a similar paradigm but covers a shorter longitudinal timespan. We find similar results across the four additional participants. (Copyright © 2026 Paulsen et al.) |
| Competing Interests: | The authors declare no competing financial interests. |
| Contributed Indexing: | Keywords: decoding; magnetoencephalography; variability; visual processing |
| Entry Date(s): | Date Created: 20260610 Date Completed: 20260623 Latest Revision: 20260726 |
| Update Code: | 20260726 |
| PubMed Central ID: | PMC13286707 |
| DOI: | 10.1523/ENEURO.0344-25.2026 |
| PMID: | 42270404 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 2373-2822 |
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| DOI: | 10.1523/ENEURO.0344-25.2026 |