Converging lines of evidence from diverse research domains suggest that the left and right hemispheres play distinct, yet complementary, roles in inferential reasoning. Here, we review research on split-brain patients, brain-damaged patients, delusional patients, and healthy individuals that suggests that the left hemisphere tends to create explanations, make inferences, and bridge gaps in info...

We explored word type and lesion laterality effects in visual word stem completion priming. Participants were 24 stroke patients (12 left, 12 right) and 11 non-brain damaged, medical controls. Participants studied 32 threatening and 32 nonthreatening words and completed cued recall and word stem priming tasks (Mathews, Mogg, May, & Eysenck, 1989). Stroke groups had lower cued recall than contro...

Perceptual musical functions were investigated in patients suffering from unilateral cerebrovascular cortical lesions. Using MIDI (Musical Instrument Digital Interface) technique, a standardized short test battery was established that covers local (analytical) as well as global perceptual mechanisms. These represent the principal cognitive strategies in melodic and temporal musical information ...

BACKGROUND AND PURPOSE Two mechanisms for recovery from aphasia, repair of damaged language networks and activation of compensatory areas, have been proposed. In this study, we investigated whether both mechanisms or one instead of the other take place in the brain of recovered aphasic patients. METHODS Using blood oxygenation level-dependent functional MRI (fMRI), we studied cortical languag...

one of the main problems following road accidents is brain injury after which death and disability in the most active population occurs. considering the fact that there is no definite clinical treatment for repair of damaged brain tissue, the present study examined the effects of autologous adult neural stem/progenitor cells (ns/pcs) seeded in a nanoscaffold named puramatrix in acute brain inju...

Scientists who study the brain try to understand how it performs everyday behaviors like language, memory, and emotion. learn a lot by studying these change when is damaged. Over past 200 years, they have made many discoveries individuals with damage. For example, one patient could not form sentences after damaging specific area of his brain. The scientist studied him concluded that damaged was...

To verify the role of interhemispheric influences on manifestations of neglect, the authors investigated the effects of a transient repetitive transcranial magnetic stimulation (rTMS)-induced disruption of the unaffected hemisphere on contralesional visuospatial neglect in two left- and five right-brain-damaged patients. Parietal rTMS of the unaffected hemisphere during the execution of a compu...

Spatial orientation was tested with the rod orientation test. The subjects were 40 normal controls and 68 brain-damaged patients with cerebral infarcts. Patients in whom the lesion included the post-rolandic region of the right hemisphere performed worse than controls or patients with lesions at other sites. Patients with an exclusively postrolandic (usually occipital) lesion showed higher erro...