Showing papers in "Clinical Neurophysiology in 2009"

TL;DR: The present updated guidelines review issues of risk and safety of conventional TMS protocols, address the undesired effects and risks of emerging TMS interventions, the applications of TMS in patients with implanted electrodes in the central nervous system, and safety aspects of T MS in neuroimaging environments.

TL;DR: A review of studies that focus on neuronal mechanisms underlying the MMN generation, discusses the two major explanatory hypotheses, and proposes predictive coding as a general framework that attempts to unify both.

TL;DR: These guidelines are intended to assist investigators who use ERPs in clinical research in an effort to provide clear and concise recommendations and thereby to standardize methodology and facilitate comparability of data across laboratories.

TL;DR: The results shed further light on the time-course of emotional and cognitive modulation of the late positive potential, and suggest that the LPP reflects the relatively rapid and dynamic allocation of increased attention to emotional stimuli.

TL;DR: The authors' best machine learning technique applied to spatio-temporal patterns of EEG synchronization outperformed previous seizure prediction methods on the Freiburg dataset.

TL;DR: It is demonstrated that visual BCI feedback clearly modulates sensorimotor EEG rhythms, and the presentation form (abstract versus realistic) does not influence the performance in a BCI, at least in initial training sessions.

TL;DR: The experimentally determined threshold estimate is two orders of magnitude higher than the charge density currently applied in humans and in relation to transcranial DC stimulation in humans the rat epicranial electrode montage may provide for an additional safety margin.

TL;DR: These results demonstrate that CORRMAP provides an efficient, convenient and objective way of clustering independent components and helps to efficiently use ICA for the removal EEG artifacts.

TL;DR: Both the stated cathodal current density and charge density thresholds must be exceeded to induce histopathologically visible brain tissue damage in rats following tDCS, according to Liebetanz and colleagues.

TL;DR: The capability of the Convolution Kernel Compensation (CKC) method to identify motor unit (MU) discharge patterns from the simulated and experimental surface electromyogram (sEMG) during low-force contractions was tested.

TL;DR: The standard tests of motoneuron excitability are strongly influenced by the level of neuromodulatory input to motoneurons, and this insight is likely to be profoundly important for clinical diagnosis and treatment.

TL;DR: With the advantages of low contrast and luminance tolerance, the proposed motion-onset stimulus presentation paradigm can be applied to brain-computer interface and achieves a comparable target detection accuracy with that of the classical P300-speller.

TL;DR: This child study confirms the generality of eyes-closed vs. eyes-open non-alpha EEG measures differing in mean power levels and topography, the latter indicating brain activity related to visual processing.

TL;DR: A non-linear relationship exists between the injected current, the electrode area and the current density at a fixed target point in the brain, which can be described in terms of a montage-specific I-A curve.

TL;DR: This study indicates that an auditory P300 BCI is feasible, that reasonable classification accuracy and rate of communication are achievable, and that the paradigm should be further evaluated with a group of severely disabled participants who have limited visual mobility.

TL;DR: The LC condition, which used the green/blue flicker matrix was associated with better performances in the P300 BCI, and can be an efficient tool for practical BCI application.

TL;DR: The n10 appears to be a simple new test of superior vestibular nerve and probably mainly utricular function, which is due primarily to utricular activation and probably due to activation of mainlyutricular receptors.

TL;DR: The findings suggest that the beta rebound at Cz during foot motor imagery is a relatively stable and reproducible phenomenon detectable in single EEG trials, suggesting that a "brain switch" with one single EEG (Laplacian) channel only is possible.

TL;DR: The fuzzy rule-based seizure detection system enabled us to deal with imprecise boundaries between interictal and ictal IEEG patterns and may serve as a good seizure detection tool with high sensitivity and low false detection rate for monitoring long-term IEEGs.

TL;DR: Skin-to-skin contact accelerates brain maturation in healthy preterm infants compared with two groups without SSC, and combined use of linear and complexity analysis strategies offer complementary information regarding altered neuronal functions after developmental care interventions.

TL;DR: Unilateral strength training increased the capacity of the motor cortex to drive the homologous untrained muscles, showing for the first time that an increase in cortical drive contributes to the contralateral strength training effect.

TL;DR: Results support the potential clinical utility of this approach for predicting clinical outcome to antidepressant treatments in MDD and suggest theta current density in the rACC and mOFC may be useful as a biomarker for prediction of response to antidepressant medication.

TL;DR: These data suggest that it is possible to analyze the cortical evoked response induced by TMS 5 ms after TMS onset, and suggest that the early physiological responses to TMS stimulation may have valuable implications for both clinical and experimental purposes.

TL;DR: The voluntary stopping of movement in the Stop-signal task is an active process, which likely suppresses not only the cortico-motoneuronal excitability of the task-performing hand, but also causes the widespread suppression of the motor system.

TL;DR: Results indicate that the human auditory cortex is more responsive to voice F(0) feedback perturbations during vocalization than passive listening, which support previous suggestions regarding the enhanced auditory sensitivity to feedback alterations during self-vocalization.

TL;DR: The task parameter speed can be discriminated in single-trial EEG traces with greater accuracy than the type of movement when tasks are executed at the same joint.

TL;DR: The findings demonstrate that application of MSE analysis to EEG is a powerful approach for studying age-related changes in brain function, and enhancement of long-range temporal correlation in young subjects after PS might reflect a cortical response to stimuli, which was absent in elderly subjects.

TL;DR: It is proposed that 5min provides in most cases the same information as a longer interval when identifying HFOs and spikes in slow wave sleep, and methods to identify when this is not the case are presented.

TL;DR: The study suggests poor brain-muscle communication or poor integration of the EEG and EMG signals in higher frequency band during reaching task may reflect an underlying mechanism producing movement deficits post-stroke.

TL;DR: Foam posturography detected high levels of visual and somatosensory dependence in patients with vestibulopathy, and is useful for preliminary assessment of possible peripheral vestibULopathy.