OBJECTIVE Our objectives were 1) to determine hemispheric asymmetry and regional differences on the EEGs of patients with obsessive-compulsive disorder (OCD); and 2) to investigate the effects of sex, treatment response, illness duration, and Yale-Brown Obsessive Compulsive Scale (Y-BOCS) scores on quantitative electroencephalographic (QEEG) measurements. METHOD We recorded EEGs (12-channel) ...

Spectral analysis of the electrophysiological output at a single, midline prefrontal location (the vertex) was conducted in 482 individuals, ages 6-30 years old, to test the hypothesis that cortical slowing in the prefrontal region can serve as a basis for differentiating patients with attention deficit hyperactivity disorder (ADHD) from nonclinical control groups. Participants were classified ...

Results from this study indicated that individuals with ADHD could be reliably distinguished from non-ADHD individuals by QEEG scan results of the prefrontal cortical areas. Approximately 90% of individuals who had been carefully diagnosed with ADHD using standard diagnosed procedures showed a pattern of under activity in these areas (referred to as “cortical slowing”). In contrast, 94% of a co...

In order to examine the neuropsychological effects of hostility on emotional and pain processing, auditory emotion perception before and after cold pressor pain in high and low hostile men was examined. Additionally, quantitative electroencephalography (QEEG) was recorded between each experimental manipulation. Results indicated that identification of emotion post cold pressor differed as a fun...

Advances in computer technology have allowed quantification of the electroencephalogram (EEG) and expansion of quantitative EEG (qEEG) analysis in neurophysiology, as well as clinical neurology, with great success. Among the variety of techniques in this field, frequency (spectral) analysis using Fast Fourier Transforms (FFT) provides a sensitive tool for time-course studies of different compou...

OBJECTIVE Quantitative electroencephalography (qEEG) has been increasingly used to evaluate patients with attention deficit hyperactivity disorder (ADHD). The aim of this study was to assess the correlation between qEEG data and symptom severity in patients with ADHD. METHODS Fifteen patients with ADHD and 20 healthy controls (HCs) were recruited. Electroencephalography was assessed in the re...

In the last decade, many studies have tried to define the neural correlates of attention deficit hyperactivity disorder (ADHD). The main aim of this study is the comparison of the ERPs independent components in the four QEEG subtypes in a group of ADHD adults as a basis for defining the corresponding endophenotypes among ADHD population. Sixty-seven adults diagnosed as ADHD according to the DSM...

The therapeutic potential of meditation for physical and mental well-being is well documented, however the possibility of adverse effects warrants further discussion of the suitability of any particular meditation practice for every given participant. This concern highlights the need for a personalized approach in the meditation practice adjusted for a concrete individual. This can be done by u...

The development of a quantitative electroencephalographic (QEEG)-based procedure for use in the assessment of attention deficit-hyperactivity disorder (ADHD) was examined through a series of studies investigating test reliability and validation issues. This process, involving a spectral analysis of the electrophysiological power output from a single, midline, central location (the vertex), was ...