Single-trial EEG power and phase dynamics associated with voluntary response inhibition. Yamanaka, K. & Yamamoto, Y. Journal of cognitive neuroscience, 22(4):714–27, April, 2010.
Single-trial EEG power and phase dynamics associated with voluntary response inhibition. [link]Paper  doi  abstract   bibtex   
Human voluntary response inhibition has frequently been investigated using go/no-go RT tasks. Recent studies have indicated that not only the traditional averaging waveforms of EEG activities (ERPs) but also the power and phase dynamics of single-trial EEG are important in studying the neural correlates of various human cognitive functions. Therefore, here, we aimed to undertake a detailed study of the time/frequency power and phase dynamics of single-trial EEG during go/no-go RT tasks, with focus particularly on the no-go-specific power and phase dynamics, which are presumed to involve the voluntary response inhibition processes. Thus, we demonstrated no-go-specific theta band EEG power increases and intertrial phase-locking in the midline-frontal areas, which are related to no-go-specific midline-frontal negative-positive ERP waveforms (no-go N2/no-go P3). In addition, we observed no-go-specific alpha band EEG intertrial phase-locking with an adjacent dephasing phenomenon, which is mainly associated with the early part of no-go N2. The estimated time point when the no-go-specific midline-frontal dephasing phenomenon occurred corresponded to the initial part of the voluntary response inhibition process (decision to withhold). Moreover, the no-go-specific phase dynamics in the midline-frontal areas just before and around the no-go N2 peak latency, unlike the power modulations, were affected by changes in the no-go stimulus probability, suggesting the dependence of only phase dynamics on no-go stimulus probability. From these results, we conclude that the complex power and phase dynamics of the theta and alpha band EEG in the midline-frontal areas are specific to no-go trials, being the underlying bases of the no-go-specific ERP waveforms, and suggest that the phase dynamics just before and around the no-go N2 peak latency may involve, at least, the initial part of the voluntary response inhibition process (decision to withhold).
@article{yamanaka_single-trial_2010,
	title = {Single-trial {EEG} power and phase dynamics associated with voluntary response inhibition.},
	volume = {22},
	issn = {1530-8898},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/19413474},
	doi = {10.1162/jocn.2009.21258},
	abstract = {Human voluntary response inhibition has frequently been investigated using go/no-go RT tasks. Recent studies have indicated that not only the traditional averaging waveforms of EEG activities (ERPs) but also the power and phase dynamics of single-trial EEG are important in studying the neural correlates of various human cognitive functions. Therefore, here, we aimed to undertake a detailed study of the time/frequency power and phase dynamics of single-trial EEG during go/no-go RT tasks, with focus particularly on the no-go-specific power and phase dynamics, which are presumed to involve the voluntary response inhibition processes. Thus, we demonstrated no-go-specific theta band EEG power increases and intertrial phase-locking in the midline-frontal areas, which are related to no-go-specific midline-frontal negative-positive ERP waveforms (no-go N2/no-go P3). In addition, we observed no-go-specific alpha band EEG intertrial phase-locking with an adjacent dephasing phenomenon, which is mainly associated with the early part of no-go N2. The estimated time point when the no-go-specific midline-frontal dephasing phenomenon occurred corresponded to the initial part of the voluntary response inhibition process (decision to withhold). Moreover, the no-go-specific phase dynamics in the midline-frontal areas just before and around the no-go N2 peak latency, unlike the power modulations, were affected by changes in the no-go stimulus probability, suggesting the dependence of only phase dynamics on no-go stimulus probability. From these results, we conclude that the complex power and phase dynamics of the theta and alpha band EEG in the midline-frontal areas are specific to no-go trials, being the underlying bases of the no-go-specific ERP waveforms, and suggest that the phase dynamics just before and around the no-go N2 peak latency may involve, at least, the initial part of the voluntary response inhibition process (decision to withhold).},
	number = {4},
	urldate = {2015-05-07},
	journal = {Journal of cognitive neuroscience},
	author = {Yamanaka, Kentaro and Yamamoto, Yoshiharu},
	month = apr,
	year = {2010},
	pmid = {19413474},
	keywords = {Adult, Analysis of Variance, Brain, Brain Mapping, Brain: physiology, Choice Behavior, Choice Behavior: physiology, Electroencephalography, Electroencephalography: methods, Humans, Inhibition (Psychology), Male, Models, Neurological, Neuropsychological Tests, Nonlinear Dynamics, Photic Stimulation, Photic Stimulation: methods, Reaction Time, Reaction Time: physiology, Spectrum Analysis, Spectrum Analysis: methods},
	pages = {714--27},
}

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