PURPOSE To analyze the retinal symmetry of multifocal visual evoked potential (mfVEP) in both eyes of normal subjects. METHODS The monocular mfVEP in both eyes of 36 normal subjects (72 eyes) were tested with VERIS Science 4.0. The stimulus was the pattern reversal dart array consisted of 60 sectors, each included 16 black-white reverse patterns. The visual stimulation was controlled by a bin...

Transient pattern electroretinograms (PERGs) and visual evoked potentials (VEPs) were recorded with checkerboard pattern reversal and equiluminance stimulus onset-offset, elicited by a high quality moving mirror stimulator. Different sized checkerboard patterns (0.35-4.2 c/deg) were used as stimulus patterns. The wave forms of the equiluminance stimulus onset responses were similar to ERGs evok...

Attentional automatic processes and cerebral activity may differ between individuals with different weight statuses in the presence of food stimuli (e.g. odors, pictures). In present study, we used an implicit olfactory priming paradigm to test influence non-attentively perceived odors on underlying processing pictures, normal-weight, overweight, obese adults. A pear odor a pound cake were as p...

The early stages of visual information processing, involving the detection and perception of simple visual stimuli, have been demonstrated to be sensitive to psychotropic agents. The present study investigated the effects of an acute dose of bromazepam (3 mg), compared with placebo, on the P100 component of the visual evoked potential and reaction time. The sample, consisting of 14 healthy subj...

How do our brains respond when we are being watched by a group of people?Despite the large volume of literature devoted to face processing, this question has received very little attention. Here we measured the effects on the face-sensitive N170 and other ERPs to viewing displays of one, two and three faces in two experiments. In Experiment 1, overall image brightness and contrast were adjusted...

We had previously described six distinct alleles of the glycoprotein B (gB) gene of human herpesvirus 7 (HHV-7). The genetic changes corresponding to these alleles did not affect gB gene transcription or translation in in vitro assays. The study of distinct HHV-7-positive human samples showed preferential associations of some gB alleles with some alleles of two other genes, distantly located on...

Background: Multiple sclerosis (MS) prevalence in Iraq is 11.73/100,000 it causes disability younger adults. Expanded Disability Status Scale (EDSS) can monitor MS while Visually Evoked Potentials (VEP) serves as a marker of myelination. Objectives: To explore the relationship between EDSS and VEPs multiple patients. Patients Methods: A cross-sectional study was conducted Ghazi Al- Hariri Hospi...