Task-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures.
Movement-related processing results in the modulation of neuronal synchronization over several electroencephalography (EEG) frequency ranges, including alpha- (8-12 Hz) and beta-band (14-30 Hz). Whether modulation patterns differ across sites within the motor system remains unclear, but could denote...
| Główni autorzy: | , , , , , , , , , |
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| Format: | Journal article |
| Język: | English |
| Wydane: |
2007
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| _version_ | 1826257702747111424 |
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| author | Klostermann, F Nikulin, V Kühn, A Marzinzik, F Wahl, M Pogosyan, A Kupsch, A Schneider, G Brown, P Curio, G |
| author_facet | Klostermann, F Nikulin, V Kühn, A Marzinzik, F Wahl, M Pogosyan, A Kupsch, A Schneider, G Brown, P Curio, G |
| author_sort | Klostermann, F |
| collection | OXFORD |
| description | Movement-related processing results in the modulation of neuronal synchronization over several electroencephalography (EEG) frequency ranges, including alpha- (8-12 Hz) and beta-band (14-30 Hz). Whether modulation patterns differ across sites within the motor system remains unclear, but could denote how information is conveyed across the cortico-basal network. We therefore compared the event-related synchronization/desynchronization (ERS/ERD) in recordings from the scalp, basal ganglia and thalamic structures during a motor task. Simultaneous depth and scalp EEG were recorded in 13 patients, undergoing deep brain stimulation of the thalamic ventral intermediate nucleus (VIM) or the subthalamic nucleus (STN). They performed a choice-reaction task with pre-cued Go-signals, instructive for either left- or right-sided button presses. In the beta-band, pre-cues and Go-signals were followed by ERD starting well before and peaking at task execution, uniformly in all cortical and subcortical recordings. In contrast, a comparable alpha-band ERD was only seen at the scalp, whereas mirror-like ERS were observed in the motor-inhibitory STN. In VIM, which receives strong somatosensory afferences, a major alpha-ERD upon the Go-signal did not start until the motor response. These dissociations of task-related Alpha- and Beta-band dynamics tag a functional diversity in cortico-basal networks, which are simultaneously active in motor processing. Whereas the uniform downregulation of Beta-activity points to an anti-kinetic operation mode throughout the motor system, site-dependent courses of Alpha-synchronization rather reflect the coordination of activity levels in functionally divergent motor structures during the preparation and execution of movements. |
| first_indexed | 2024-03-06T18:22:20Z |
| format | Journal article |
| id | oxford-uuid:06baf1bb-411b-4a09-9e7d-515de69c0b8e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:22:20Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:06baf1bb-411b-4a09-9e7d-515de69c0b8e2022-03-26T09:03:58ZTask-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:06baf1bb-411b-4a09-9e7d-515de69c0b8eEnglishSymplectic Elements at Oxford2007Klostermann, FNikulin, VKühn, AMarzinzik, FWahl, MPogosyan, AKupsch, ASchneider, GBrown, PCurio, GMovement-related processing results in the modulation of neuronal synchronization over several electroencephalography (EEG) frequency ranges, including alpha- (8-12 Hz) and beta-band (14-30 Hz). Whether modulation patterns differ across sites within the motor system remains unclear, but could denote how information is conveyed across the cortico-basal network. We therefore compared the event-related synchronization/desynchronization (ERS/ERD) in recordings from the scalp, basal ganglia and thalamic structures during a motor task. Simultaneous depth and scalp EEG were recorded in 13 patients, undergoing deep brain stimulation of the thalamic ventral intermediate nucleus (VIM) or the subthalamic nucleus (STN). They performed a choice-reaction task with pre-cued Go-signals, instructive for either left- or right-sided button presses. In the beta-band, pre-cues and Go-signals were followed by ERD starting well before and peaking at task execution, uniformly in all cortical and subcortical recordings. In contrast, a comparable alpha-band ERD was only seen at the scalp, whereas mirror-like ERS were observed in the motor-inhibitory STN. In VIM, which receives strong somatosensory afferences, a major alpha-ERD upon the Go-signal did not start until the motor response. These dissociations of task-related Alpha- and Beta-band dynamics tag a functional diversity in cortico-basal networks, which are simultaneously active in motor processing. Whereas the uniform downregulation of Beta-activity points to an anti-kinetic operation mode throughout the motor system, site-dependent courses of Alpha-synchronization rather reflect the coordination of activity levels in functionally divergent motor structures during the preparation and execution of movements. |
| spellingShingle | Klostermann, F Nikulin, V Kühn, A Marzinzik, F Wahl, M Pogosyan, A Kupsch, A Schneider, G Brown, P Curio, G Task-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures. |
| title | Task-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures. |
| title_full | Task-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures. |
| title_fullStr | Task-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures. |
| title_full_unstemmed | Task-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures. |
| title_short | Task-related differential dynamics of EEG alpha- and beta-band synchronization in cortico-basal motor structures. |
| title_sort | task related differential dynamics of eeg alpha and beta band synchronization in cortico basal motor structures |
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