title: Beat-induced fluctuations in auditory cortical beta-band activity: using EEG to measure age-related changes.
abstract: People readily extract regularity in rhythmic auditory patterns, enabling prediction of the onset of the next beat. Recent magnetoencephalography (MEG) research suggests that such prediction is reflected by the entrainment of oscillatory networks in the brain to the tempo of the sequence. In particular, induced beta-band oscillatory activity from auditory cortex decreases after each beat onset and rebounds prior to the onset of the next beat across tempi in a predictive manner. The objective of the present study was to examine the development of such oscillatory activity by comparing electroencephalography (EEG) measures of beta-band fluctuations in 7-year-old children to adults. EEG was recorded while participants listened passively to isochronous tone sequences at three tempi (390, 585, and 780 ms for onset-to-onset interval). In adults, induced power in the high beta-band (20-25 Hz) decreased after each tone onset and rebounded prior to the onset of the next tone across tempo conditions, consistent with MEG findings. In children, a similar pattern was measured in the two slower tempo conditions, but was weaker in the fastest condition. The results indicate that the beta-band timing network works similarly in children, although there are age-related changes in consistency and the tempo range over which it operates.
authors: Department of Psychology, Neuroscience & Behaviour, McMaster University Hamilton, ON, Canada.
authors: Laura K
authors: LK
authors: Cirelli
authors: Department of Psychology, Neuroscience & Behaviour, McMaster University Hamilton, ON, Canada.
authors: Dan
authors: D
authors: Bosnyak
authors: Department of Psychology, Neuroscience & Behaviour, McMaster University Hamilton, ON, Canada.
authors: Fiona C
authors: FC
authors: Manning
authors: Department of Psychology, Neuroscience & Behaviour, McMaster University Hamilton, ON, Canada.
authors: Christina
authors: C
authors: Spinelli
authors: Department of Psychology, Neuroscience & Behaviour, McMaster University Hamilton, ON, Canada.
authors: Céline
authors: C
authors: Marie
authors: McMaster Institute for Music and the Mind, McMaster University Hamilton, ON, Canada ; Centre for Computer Research in Music and Acoustics, Stanford University Stanford, CA, USA.
authors: Takako
authors: T
authors: Fujioka
authors: Department of Psychology, Neuroscience & Behaviour, McMaster University Hamilton, ON, Canada.
authors: Ayda
authors: A
authors: Ghahremani
authors: Department of Psychology, Neuroscience & Behaviour, McMaster University Hamilton, ON, Canada ; McMaster Institute for Music and the Mind, McMaster University Hamilton, ON, Canada ; Rotman Research Institute, Baycrest Hospital Toronto, ON, Canada.
authors: Laurel J
authors: LJ
authors: Trainor
keywords: child development; electroencephalography (EEG); musical rhythm; neural oscillation; time perception