Both invasive and non-invasive electroencephalographic (EEG) recordings from the human brain have an increasingly important role in neuroscience research and are candidate modalities for medical brain-machine interfacing. It is often assumed that the major artifacts that compromise non-invasive EEG, such as caused by blinks and eye movement, are absent in invasive EEG recordings. Quantitative i...

495 ISSN 1758-2008 10.2217/NPY.11.45 © 2011 Future Medicine Ltd Neuropsychiatry (2011) 1(5), 495–514 Summary The human brain weighs approximately 3 lbs and consumes 40–60% of blood glucose. This disproportionate amount of energy is used to create electricity in approximately 100 billion interconnected neurons. Quantitative EEG is a real-time movie of the electrical activity of the preconscious ...

A quantitative and objective assessment of background electroencephalograph (EEG) in sick neonates remains an everyday clinical challenge. We studied whether long range temporal correlations quantified by detrended fluctuation analysis (DFA) could be used in the neonatal EEG to distinguish different grades of abnormality in the background EEG activity. Long-term EEG records of 34 neonates were ...

Neurofeedback is a mode of treatment that is potentially useful for improving self-regulation skills in persons with autism spectrum disorder. We proposed that operant conditioning of EEG in neurofeedback mode can be accompanied by changes in the relative power of EEG bands. However, the details on the change of the relative power of EEG bands during neurofeedback training course in autism are ...

Attention deficit hyperactivity disorder (ADHD) in children and adolescents is characterised by excessive restlessness and an extremely poor concentration span, resulting in impulsive and disruptive behaviour. Clinical observation of ADHD in adults suggests that the early hyperactivity is diminished in terms of its impact on social and academic function, while impulsive-type behaviours remain u...

In normothermic cats, cerebral blood flow was arrested for 1 hour followed by blood reclrculation for 5-6 hours. Functional recovery was evaluated by qualitative and quantitative EEG analysis, and metabolic recovery by measuring metabolite and electrolyte levels in tissue samples taken from the cerebral cortex. In S out of 12 animals EEG activity did not recover after ischemia (group I); in 3 a...

Abstract—This work proposes a data-driven multiscale based quantitative measures to reveal the underlying complexity of electroencephalogram (EEG), applying to a rodent model of hypoxic-ischemic brain injury and recovery. Motivated by that real EEG recording is nonlinear and non-stationary over different frequencies or scales, there is a need of more suitable approach over the conventional sing...

The combined monitoring of oxygen supply and delivery using Near-InfraRed spectroscopy (NIRS) and cerebral activity using amplitude-integrated EEG (aEEG) could yield new insights into brain metabolism and detect potentially vulnerable conditions soon after birth. The relationship between NIRS and quantitative aEEG/EEG parameters has not yet been investigated. Our aim was to study the associatio...

The goal of this study is to investigate the impact of electroencephalogram (EEG) electrodes on the visual quality and quantification of (18)F-FDG PET images in neurological PET/CT examinations. For this purpose, the scans of 20 epilepsy patients with EEG monitoring were used. The CT data were reconstructed with filtered backprojection (FBP) and with a metal artefact reduction (MAR) algorithm. ...

Reliability and validity are statistical concepts that are reviewed and then applied to the field of quantitative electroencephalography or qEEG. The review of the scientific literature demonstrated high levels of split-half and test re-test reliability of qEEG and convincing content and predictive validity as well as other forms of validity. qEEG is distinguished from nonquantitative EEG (“Eye...