Action Preparation Shapes Processing in Early Visual Cortex
| Autor: | Gutteling, Tjerk P., Petridou, Natalia, Dumoulin, Serge O., Harvey, Ben M., Aarnoutse, Erik J., Leon Kenemans, J., Neggers, Sebastian F W, Experimental Psychology (onderzoeksprogramma PF), Afd Psychologische functieleer, Helmholtz Institute, Leerstoel Dumoulin |
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| Přispěvatelé: | Experimental Psychology (onderzoeksprogramma PF), Afd Psychologische functieleer, Helmholtz Institute, Leerstoel Dumoulin |
| Rok vydání: | 2015 |
| Předmět: |
Male
genetic structures Brain activity and meditation feature perception FRONTAL EYE FIELD BRAIN ACTIVITY Intention Functional Laterality MOTOR IMAGERY CONCURRENT TMS-FMRI ACTIVATION ANTERIOR INTRAPARIETAL AREA POSTERIOR PARIETAL CORTEX visual cortex Non-U.S. Gov't Vision for perception and vision for action media_common Brain Mapping Hand Strength Research Support Non-U.S. Gov't General Neuroscience Articles Magnetic Resonance Imaging medicine.anatomical_structure Visual Perception Female Psychology Cognitive psychology Adult Movement media_common.quotation_subject grasping Posterior parietal cortex Research Support Young Adult Motor imagery Visual memory MVPA Perception Journal Article medicine Humans high-field fMRI MOVEMENTS Somatosensory Cortex VISUOSPATIAL ATTENTION Visual cortex Action (philosophy) action preparation ORIENTATION Photic Stimulation |
| Zdroj: | Journal of Neuroscience, 35(16), 6472. Society for Neuroscience, 2006 Journal of Neuroscience, 35(16), 6472. Society for Neuroscience |
| ISSN: | 1529-2401 0270-6474 |
| Popis: | Preparation for an action, such as grasping an object, is accompanied by an enhanced perception of the object's action-relevant features, such as orientation and size. Cortical feedback from motor planning areas to early visual areas may drive this enhanced perception. To examine whether action preparation modulates activity in early human visual cortex, subjects grasped or pointed to oriented objects while high-resolution fMRI data were acquired. Using multivoxel pattern analysis techniques, we could decode with >70% accuracy whether a grasping or pointing action was prepared from signals in visual cortex as early as V1. These signals in early visual cortex were observed even when actions were only prepared but not executed. Anterior parietal cortex, on the other hand, showed clearest modulation for actual movements. This demonstrates that preparation of actions, even without execution, modulates relevant neuronal populations in early visual areas. |
| Databáze: | OpenAIRE |
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