PURPOSE To show the distribution of ocular dominance as measured with sensory and eye sighting methods and its potential relationship with high and low contrast LogMAR visual acuity in presbyopic subjects. METHOD Forty-four presbyopes (48.5 ± 3.5 years) participated in this study. Ocular dominance was determined by eye sighting (hole-in-card) and sensorial (+1.50 D lens induced blur) methods....

background: palliative whole brain radiotherapy (wbrt) has been the standard treatment for brain metastases. ionizing radiation is known to be one of the most potent cataractogenic agents. we aimed to evaluate two different radiotherapy techniques with respect to the doses received by the organs at risk (oar) in patients with brain metastasis who undergone wbrt. materials and methods: ten conse...

A left-handed patient with a grade II left frontal lobe astrocytoma had spontaneous seizures causing speech arrest and uncontrolled right upper extremity movements. Word-generation functional MR (fMR) imaging showed activity nearly exclusively in the right inferior frontal gyrus. The clinical history of the speech arrest and the intraoperative mapping proved left-hemisphere language dominance. ...

short-term visual retrieving processes were investigated in three groups, of schizophernics (n=10), right hemisphere brain damaged (n=10) and a normal grou (n=10) . all of subjects were men and right handed. the study utilized wais (verbal subtests), meaningless syllabuses, retrieve and recall tests and non-verbal patternes retrieve and recall tests. data were analyzed by three factor repeated ...

Abstract Background Cerebral dominance refers to the biological description of brain, where one cerebral hemisphere is dominant over other in certain functions. There scanty literature on and its impact auditory spatial processing working memory, which explored study. Methods A total 45 participants with normal hearing were divided into three groups 15 participants. The categorized based scores...

Unlike nonhuman primates, songbirds learn to vocalize very much like human infants acquire spoken language. In humans, Broca's area in the frontal lobe and Wernicke's area in the temporal lobe are crucially involved in speech production and perception, respectively. Songbirds have analogous brain regions that show a similar neural dissociation between vocal production and auditory perception an...

Using the method of positron emission tomography, combined with word-generation tasks, we had the opportunity to examine the cerebral representation of multiple languages in the brain in a right-handed patient, RA, with known right-hemisphere speech representation as determined by intracarotid sodium amobarbital testing. Similar patterns of cerebral blood flow were observed across all three lan...

There is a great similarity between the actions of other people and the actions of ourselves, not only in terms of the movements characteristics, but also in the way that these movements are processed in the brain. It is the similarity between our own and others’ actions that allows us to interpret the actions, intentions and desires of other people. Before we can begin to do this, however, we ...