Auditory event-related responses are generated independently of ongoing brain activity

Mäkinen, Ville; Tiitinen, Hannu; May, Patrick

doi:10.1016/j.neuroimage.2004.10.020

Cited by 146 publications

(124 citation statements)

References 24 publications

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“…Indeed the primary difference between these approaches lies in the selection of the bandpass filters (" narrow" in the case of oscillatory activity, "broad" in the case of ERP components). Although the discussion immediately above apparently originates from the perspective that the band-limited oscillatory activity constitutes the primary neural response to a stimulus, and the broadband ERP components correspond to a "noisier" estimation of that activity, the opposite interpretation has been argued (e.g., Makinen et al, 2005;Yeung et al, 2004). The present study, as designed, cannot inform that particular debate.…”

Section: Comparison With Previous Studies Of Sensory Gatingmentioning

confidence: 72%

Gamma and beta neural activity evoked during a sensory gating paradigm: Effects of auditory, somatosensory and cross-modal stimulation

Kisley

Cornwell

2006

Clinical Neurophysiology

115

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Objective.-Stimulus-driven salience is determined involuntarily, and by the physical properties of a stimulus. It has recently been theorized that neural coding of this variable involves oscillatory activity within cortical neuron populations at beta frequencies. This was tested here through experimental manipulation of inter-stimulus interval (ISI).Methods.-Non-invasive neurophysiological measures of event-related gamma (30-50 Hz) and beta (12-20 Hz) activity were estimated from scalp-recorded evoked potentials. Stimuli were presented in a standard "paired-stimulus" sensory gating paradigm, where the S1 (conditioning) stimulus was conceptualized as long-ISI, or "high salience," and the S2 (test) stimulus as short-ISI, or "low salience." Three separate studies were conducted: auditory stimuli only (N=20 participants), somatosensory stimuli only (N=20), and a cross-modal study for which auditory and somatosensory stimuli were mixed (N=40).Results.-Early (20-150 ms) stimulus-evoked beta activity was more sensitive to ISI than temporally-overlapping gamma band activity, and this effect was seen in both auditory and somatosensory studies. In the cross-modal study, beta activity was significantly modulated by the similarity (or dissimilarity) of stimuli separated by a short ISI (0.5 s); a significant cross-modal gating effect was nevertheless detected.Conclusions.-With regard to the early sensory-evoked response recorded from the scalp, the interval between identical stimuli especially modulates beta oscillatory activity.Significance.-This is consistent with developing theories regarding the different roles of temporally-overlapping oscillatory activity within cortical neuron populations at gamma and beta frequencies, particularly the claim that the latter is related to stimulus-driven salience.

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Section: Comparison With Previous Studies Of Sensory Gatingmentioning

confidence: 72%

Gamma and beta neural activity evoked during a sensory gating paradigm: Effects of auditory, somatosensory and cross-modal stimulation

Kisley

Cornwell

2006

Clinical Neurophysiology

115

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“…Basar 1980;Karakas et al 2000aKarakas et al , 2000bMakeig et al 2002;Jansen et al 2003;Klimesch et al 2004). This view has recently been challenged with evidence that ERPs are produced by processes separate from and additive to ongoing brain activity (Yeung et al 2004;Fell et al 2004;Makinen et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Event-Related Oscillations in Offspring of Alcoholics: Neurocognitive Disinhibition as a Risk for Alcoholism

Kamarajan

Porjesz

Jones

et al. 2006

Biological Psychiatry

108

101

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“…To this aim, we simulated an EEG signal and specifically looked for the relationship between ERD/ERS and QPs. EEG signal was simulated according to a method reported earlier 11 . The signal generated was a sum of four sinusoids with frequencies chosen randomly from specified ranges of frequencies (delta, theta, alpha, beta, gamma), with a random initial phase.…”

Section: Resultsmentioning

confidence: 99%

Quality parameters for a multimodal EEG/EMG/kinematic brain-computer interface (BCI) aiming to suppress neurological tremor in upper limbs

2013

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Tremor is the most common movement disorder encountered during daily neurological practice. Tremor in the upper limbs causes functional disability and social inconvenience, impairing daily life activities. The response of tremor to pharmacotherapy is variable. Therefore, a combination of drugs is often required. Surgery is considered when the response to medications is not sufficient. However, about one third of patients are refractory to current treatments. New bioengineering therapies are emerging as possible alternatives. Our study was carried out in the framework of the European project “Tremor” (ICT-2007-224051). The main purpose of this challenging project was to develop and validate a new treatment for upper limb tremor based on the combination of functional electrical stimulation (FES; which has been shown to reduce upper limb tremor) with a brain-computer interface (BCI). A BCI-driven detection of voluntary movement is used to trigger FES in a closed-loop approach. Neurological tremor is detected using a matrix of EMG electrodes and inertial sensors embedded in a wearable textile. The identification of the intentionality of movement is a critical aspect to optimize this complex system. We propose a multimodal detection of the intentionality of movement by fusing signals from EEG, EMG and kinematic sensors (gyroscopes and accelerometry). Parameters of prediction of movement are extracted in order to provide global prediction plots and trigger FES properly. In particular, quality parameters (QPs) for the EEG signals, corticomuscular coherence and event-related desynchronization/synchronization (ERD/ERS) parameters are combined in an original algorithm which takes into account the refractoriness/responsiveness of tremor. A simulation study of the relationship between the threshold of ERD/ERS of artificial EEG traces and the QPs is also provided. Very interestingly, values of QPs were much greater than those obtained for the corticomuscular module alone.

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Auditory event-related responses are generated independently of ongoing brain activity

Cited by 146 publications

References 24 publications

Gamma and beta neural activity evoked during a sensory gating paradigm: Effects of auditory, somatosensory and cross-modal stimulation

Gamma and beta neural activity evoked during a sensory gating paradigm: Effects of auditory, somatosensory and cross-modal stimulation

Event-Related Oscillations in Offspring of Alcoholics: Neurocognitive Disinhibition as a Risk for Alcoholism

Quality parameters for a multimodal EEG/EMG/kinematic brain-computer interface (BCI) aiming to suppress neurological tremor in upper limbs

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