ArticleScientific reports2017
Non-invasive detection of language-related prefrontal high gamma band activity with beamforming MEG.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 29 citations in OpenAlex.
- Revealing spatiotemporal neural activation patterns in electrocorticography recordings of human speech production by mutual information.Neuroscience informatics · 2025Article
- Gradient phase and amplitude errors in atomic magnetic gradiometers for biomagnetic imaging systems.iScience · 2024Article
- Distinct neurophysiology during nonword repetition in logopenic and non-fluent variants of primary progressive aphasia.Human brain mapping · 2023Article
- Phase-amplitude coupling between infraslow and high-frequency activities well discriminates between the preictal and interictal states.Scientific reports · 2021Article
- Motor and sensory cortical processing of neural oscillatory activities revealed by human swallowing using intracranial electrodes.iScience · 2021Article
- Swallowing-related neural oscillation: an intracranial EEG study.Annals of clinical and translational neurology · 2021Article
- Coupling between infraslow activities and high-frequency oscillations precedes seizure onset.Epilepsia open · 2020Article
- Anodal Transcranial Direct Current Stimulation Induces High Gamma-Band Activity in the Left Dorsolateral Prefrontal Cortex During a Working Memory Task: A Double-Blind, Randomized, Crossover Study.Frontiers in human neuroscience · 2019Article
- Cognitive neuroscience using wearable magnetometer arrays: Non-invasive assessment of language function.NeuroImage · 2018Article
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Authors and funding
7 authors at 4 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
High gamma band (>50 Hz) activity is a key oscillatory phenomenon of brain activation. However, there has not been a non-invasive method established to detect language-related high gamma band activity. We used a 160-channel whole-head magnetoencephalography (MEG) system equipped with superconducting quantum interference device (SQUID) gradiometers to non-invasively investigate neuromagnetic activities during silent reading and verb generation tasks in 15 healthy participants. Individual data were divided into alpha (8-13 Hz), beta (13-25 Hz), low gamma (25-50 Hz), and high gamma (50-100 Hz) bands and analysed with the beamformer method. The time window was consecutively moved. Group analysis was performed to delineate common areas of brain activation. In the verb generation task, transient power increases in the high gamma band appeared in the left middle frontal gyrus (MFG) at the 550-750 ms post-stimulus window. We set a virtual sensor on the left MFG for time-frequency analysis, and high gamma event-related synchronization (ERS) induced by a verb generation task was demonstrated at 650 ms. In contrast, ERS in the high gamma band was not detected in the silent reading task. Thus, our study successfully non-invasively measured language-related prefrontal high gamma band activity.
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