Magnetoencephalography discriminates modality-specific infraslow signals less than 0.1 Hz
Abstract
DC-magnetoencephalography (DC-MEG) technique has been refined and allows to record cortical activity in the infraslow frequency range less than 0.1 Hz noninvasively. Important questions however, remained, especially, how specific these infraslow activations can be recorded and whether different activations, for example, motor versus acoustic, can be separated. To clarify these questions, in the present DC-MEG study, cortical infraslow activity was investigated intraindividually in response to different activation modalities, that is, motor versus acoustic: in 13 individuals, 30-s periods of finger movement or listening to concert music, were interleaved for 60 min. DC-MEG was capable to resolve intermodal differences concerning the relative amplitudes, field patterns, and source localizations. These results clarify that DC-MEG allows to identify and to discriminate modality-specific infraslow cortical neuronal signals.
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Electrophysiological infraslow fluctuations are putatively engendered by a combination of neuronal and glial currents.
“Putatively engendered by a combination of neuronal and glial currents [63, 68, 71–76], eISFs have been shown in both cortical [65, 66, 77] and subcortical [76, 78–82] tissues”
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References 25 · Cited by 8
- Authors
- Leistner, S., Sander, T. H., Wuebbeler, G., Link, A., Elster, C., Curio, G., Trahms, L., & Mackert, B.-M.
- Affiliations
- Charité – Universitätsmedizin Berlin (DE)
- Physikalisch-Technische Bundesanstalt (DE)
- Vivantes Klinikum (DE)
- Corresponding author
- Leistner, Stefanie
- Venue
- NeuroReport
- Published
- 2010-02-17
- Volume
- 21
- Issue
- 3
- Pages
- 196-200
- ISSN
- 0959-4965 (ISSN-L)
- OpenAlex
- W1997262833
- Cited by
- 8
- References
- 25
- Citations by year
- 2026: 1 · 2025: 1 · 2022: 1 · 2020: 1 · 2019: 1 · 2015: 1 · 2014: 1 · 2012: 1
- FWCI
- 0.19
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Neuroreport (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Deutsche Forschungsgemeinschaft
- Bundesministerium für Bildung und Forschung
- Center for Stroke Research Berlin
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Atomic and Subatomic Physics Research
- Keywords
- motor cortex activation, auditory cortex activation, finger movement, music listening, source localization, field patterns
- MeSH terms
- Acoustic Stimulation, Adult, Brain, Brain Mapping, Female, Humans, Male, Motor Activity, Magnetoencephalography, Young Adult
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