Matches in SemOpenAlex for { <https://semopenalex.org/work/W4311304941> ?p ?o ?g. }
- W4311304941 abstract "Abstract Classical analyses of induced, frequency-specific neural activity typically average bandlimited power over trials. More recently, it has become widely appreciated that in individual trials, beta band activity occurs as transient bursts rather than amplitude-modulated oscillations. Most studies of beta bursts treat them as unitary, and having a stereotyped waveform. However, we show there is a wide diversity of burst shapes. Using a biophysical model of burst generation, we demonstrate that waveform variability is predicted by variability in the synaptic drives that generate beta bursts. We then use a novel, adaptive burst detection algorithm to identify bursts from human MEG sensor data recorded during a joystick-based reaching task, and apply principal component analysis to burst waveforms to define a set of dimensions, or motifs, that best explain waveform variance. Finally, we show that bursts with a particular range of waveform motifs, ones not fully accounted for by the biophysical model, differentially contribute to movement-related beta dynamics. Sensorimotor beta bursts are therefore not homogeneous events and likely reflect distinct computational processes." @default.
- W4311304941 created "2022-12-25" @default.
- W4311304941 creator A5014950715 @default.
- W4311304941 creator A5033856415 @default.
- W4311304941 creator A5039504387 @default.
- W4311304941 creator A5058829216 @default.
- W4311304941 creator A5069614953 @default.
- W4311304941 creator A5070609991 @default.
- W4311304941 creator A5079968404 @default.
- W4311304941 date "2022-12-13" @default.
- W4311304941 modified "2023-10-18" @default.
- W4311304941 title "Diverse beta burst waveform motifs characterize movement-related cortical dynamics" @default.
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