Neuronal gamma-band synchronization regulated by instantaneous modulations of the oscillation frequency

Lowet, Eric; Mj, Roberts; Peter, Alina; Gips, Bart; De, P Weerd

doi:10.1101/070672

2016

DOI: 10.1101/070672

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Neuronal gamma-band synchronization regulated by instantaneous modulations of the oscillation frequency

Eric Lowet

Roberts Mj

Alina Peter

et al.

Abstract: we recorded gamma rhythms in monkey visual area V1, and found that they synchronized

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Fluctuations in instantaneous frequency predict alpha amplitude during visual perception

et al. 2017

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Rhythmic neural activity in the alpha band (8–13 Hz) is thought to have an important role in the selective processing of visual information. Typically, modulations in alpha amplitude and instantaneous frequency are thought to reflect independent mechanisms impacting dissociable aspects of visual information processing. However, in complex systems with interacting oscillators such as the brain, amplitude and frequency are mathematically dependent. Here, we record electroencephalography in human subjects and show that both alpha amplitude and instantaneous frequency predict behavioral performance in the same visual discrimination task. Consistent with a model of coupled oscillators, we show that fluctuations in instantaneous frequency predict alpha amplitude on a single trial basis, empirically demonstrating that these metrics are not independent. This interdependence suggests that changes in amplitude and instantaneous frequency reflect a common change in the excitatory and inhibitory neural activity that regulates alpha oscillations and visual information processing.

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Fluctuations in instantaneous frequency predict alpha amplitude during visual perception

et al. 2017

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Neuronal gamma-band synchronization regulated by instantaneous modulations of the oscillation frequency

Abstract: we recorded gamma rhythms in monkey visual area V1, and found that they synchronized

Cited by 1 publication

References 84 publications

Fluctuations in instantaneous frequency predict alpha amplitude during visual perception

Fluctuations in instantaneous frequency predict alpha amplitude during visual perception

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