Decoding the direction of imagined visual motion using 7 T ultra-high field fMRI
العنوان: | Decoding the direction of imagined visual motion using 7 T ultra-high field fMRI |
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المؤلفون: | Martin A. Frost, Jan Zimmermann, Thomas C. Emmerling, Bettina Sorger, Rainer Goebel |
المساهمون: | Cognitive Neuroscience, RS: FPN CN 1, Netherlands Institute for Neuroscience (NIN) |
المصدر: | Neuroimage Neuroimage, 125, 61-73. Elsevier Science NeuroImage, 125, 61-73. Academic Press |
بيانات النشر: | Academic Press, 2016. |
سنة النشر: | 2016 |
مصطلحات موضوعية: | Adult, Male, Ultra-high field MRI, Cognitive Neuroscience, Decoding, Functional magnetic resonance imaging, Motion Perception, 050105 experimental psychology, Motion (physics), Article, 03 medical and health sciences, 0302 clinical medicine, Neuroimaging, Image Interpretation, Computer-Assisted, medicine, Humans, 0501 psychology and cognitive sciences, Computer vision, Motion perception, Visual hierarchy, medicine.diagnostic_test, business.industry, Multi-voxel pattern analysis, 05 social sciences, Magnetic Resonance Imaging, Vision science, Neurology, Imagination, Auditory imagery, Female, Artificial intelligence, Visual mental imagery, business, Psychology, 030217 neurology & neurosurgery, Mental image |
الوصف: | There is a long-standing debate about the neurocognitive implementation of mental imagery. One form of mental imagery is the imagery of visual motion, which is of interest due to its naturalistic and dynamic character. However, so far only the mere occurrence rather than the specific content of motion imagery was shown to be detectable. In the current study, the application of multi-voxel pattern analysis to high-resolution functional data of 12 subjects acquired with ultra-high field 7 T functional magnetic resonance imaging allowed us to show that imagery of visual motion can indeed activate the earliest levels of the visual hierarchy, but the extent thereof varies highly between subjects. Our approach enabled classification not only of complex imagery, but also of its actual contents, in that the direction of imagined motion out of four options was successfully identified in two thirds of the subjects and with accuracies of up to 91.3% in individual subjects. A searchlight analysis confirmed the local origin of decodable information in striate and extra-striate cortex. These high-accuracy findings not only shed new light on a central question in vision science on the constituents of mental imagery, but also show for the first time that the specific sub-categorical content of visual motion imagery is reliably decodable from brain imaging data on a single-subject level. Highlights • Four different directions of visual motion can be decoded during imagery at 7 T. • We found very high classification accuracies in single subjects. • High variability between activation patterns and accuracies of different subjects |
وصف الملف: | application/pdf |
اللغة: | English |
تدمد: | 1095-9572 1053-8119 |
الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::656d670fbf9a2a8c222a6b6994420bfdTest http://europepmc.org/articles/PMC4692515Test |
حقوق: | OPEN |
رقم الانضمام: | edsair.doi.dedup.....656d670fbf9a2a8c222a6b6994420bfd |
قاعدة البيانات: | OpenAIRE |
تدمد: | 10959572 10538119 |
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