Showing papers in "Clinical Neurophysiology in 2008"

TL;DR: The utility of needle EMG and nerve conduction studies was affirmed and electrophysiological evidence for chronic neurogenic change should be taken as equivalent to clinical information in the recognition of involvement of individual muscles in a limb.

TL;DR: The results show that subjects can rapidly master the authors' asynchronous EEG-based BCI to control a wheelchair and can autonomously operate the BCI over long periods of time without the need for adaptive algorithms externally tuned by a human operator to minimize the impact of EEG non-stationarities.

TL;DR: In this paper, the authors evaluated the efficacy of a P300-based brain-computer interface (BCI) communication device for individuals with advanced ALS and found that participants could communicate with the P300based BCI and performance was stable over many months.

TL;DR: Decision making regarding exploration must occur more quickly, and exploration using intraoperative nerve action potential recording to guide the choice of surgical procedure is often useful.

TL;DR: Technical advice is given, normative values are reported, and special clinical applications of somatosensory-evoked potentials are discussed, which are drawing increasing interest.

TL;DR: It is concluded that TMS measures have demonstrated diagnostic utility in myelopathy, amyotrophic lateral sclerosis and multiple sclerosis and have potential clinical utility in cerebellar disease, dementia, facial nerve disorders, movement disorders, stroke, epilepsy, migraine and chronic pain.

TL;DR: The evidence that implicates electrophysiologic changes (including altered discharge rates, increased incidence of burst firing, interneuronal synchrony, oscillatory activity, and altered sensorimotor processing) in basal ganglia, thalamus, and cortex, in parkinsonism is discussed.

TL;DR: The use of tDCS in schizophrenia is in the early stages of investigation for relief of symptoms in people who are not satisfied with their response to antipsychotic medication.

TL;DR: The clinical utility of posturography as a more objective and quantitative measure of balance and postural instability is discussed, focusing on several areas where clinicians presently experience the greatest difficulties in managing their patients.

TL;DR: A strong correlation has been found between physical impairment and BCI performance, indicating that performance worsens as impairment increases, and whether locked-in patients can transfer learned brain control to the CLIS remains an open empirical question.

TL;DR: While MEPs are now considered the gold standard for monitoring the motor pathways, SEPs continue to retain value as they provide specificity for assessing the integrity of the dorsal column, but it is believed SEPs should not be used exclusively--or as an alternative to motor evoked potentials--during spine surgery, but rather as a complementary method in combination with MEPs.

TL;DR: SSVEP differences sufficient for BCI control may be elicited by selective attention to one of two overlapping stimuli, demonstrating that some SSVEP-based BCI approaches may not depend on gaze control.

TL;DR: These results suggest dysfunctional integration of frontal and posterior brain regions in autistics along with a pattern of neural underconnectivity consistent with other EEG, MRI and fMRI research suggesting that neural connectivity anomalies are a major deficit leading to autistic symptomatology.

TL;DR: In this paper, the authors examined the contribution of movement-related potentials (MRPs) to the Go/NoGo N2 and P3 "inhibitory" effects.

TL;DR: Findings show that commonly accepted protocols of testing SICI (ISI of 2-3ms, S1 intensity approximately 95% AMT) bear the risk of measuring net inhibition contaminated by SICF.

TL;DR: The wrist-to-forearm ratio (WFR) of median nerve area promises to be a valid means of diagnosing CTS, and may be superior to measuring Median nerve area at the wrist alone.

TL;DR: There appears to be a strong link between activity in the high-gamma range (80-150 Hz) and selective attention and selective attention is correlated with increased activity in a frequency range that is significantly higher than what has been reported previously using EEG recordings.

TL;DR: The authors of this book are two well recognized experts in physiology of the nervous system and their cooperation in writing this book has led to a extraordinary product that I enjoyed reading and expect other will do so as well.

TL;DR: The reliability of the psychological and clinical neurophysiological assessment techniques available today allows a multidisciplinary approach to fatigue in neurological patients, which may contribute to the elucidation of the pathophysiological mechanisms of chronic fatigue, with the ultimate goal to develop tailored treatments for fatigue in Neurological patients.

TL;DR: The results documented in this study may provide a reference for the optimum quantitative EEG features to use in developing and enhancing neonatal seizure detection algorithms.

TL;DR: It is found that some children on the autism spectrum show deficient pitch tracking compared with TD children, the first demonstration of subcortical involvement in prosody encoding deficits in this population of children.

TL;DR: The ERD/ERS preceding movement and motor imagery can be used to predict which of the four movements/imageries is about to occur, and to access this utility for brain-computer interface (BCI) applications.

TL;DR: The contribution of TMS and other non-invasive electrophysiological techniques to characterize the neural network responsible for the so-called 'non-mirror transformation' of motor programs and the various mechanisms underlying 'physiological' mirroring, and congenital or acquired pathological MM are the focus of this review.

TL;DR: In this article, the early negative component (n10) of the oVEMP to brief BCV of the forehead, in the midline at the hairline (Fz) is recorded by surface EMG electrodes just beneath the eyes.

TL;DR: The current status of non-invasive techniques applied for human brain mapping was reviewed by integrating two principles: hemodynamic and electrophysiological, from the viewpoint of clinical neurophysiology to promote the understanding of precise functional specialization and inter-areal coupling.

TL;DR: Seizure activity occurs in association with CSD in the injured human brain, and ECoG recordings in brain injury patients provide insight into pathophysiological mechanisms, which are not accessible by scalp EEG recordings.

TL;DR: Compared with conventional spectral analysis, LZC was more sensitive to both the power spectrum and the temporal amplitude distribution and was associated with the ability to attend to the task and adapt the information processing system to the cognitive challenge.

TL;DR: Findings reveal that the cerebellar cortex undergoes bidirectional plastic changes that modulate different intracortical circuits within the contralateral primary motor cortex.

TL;DR: Electrical rhythms in the gamma frequency range recorded from the scalp are inducible by mental activity and are largely due to EMG un-related to cognitive effort.

TL;DR: The findings suggest that arousal level is the primary determinant of affective oddball processing, and valence minimally influences ERP amplitude.