a b s t r a c t introduction:we investigated differential role of cortical and subcortical regions in verbal and non-verbal sound processing in ten patients who were native speakers of persian with unilateral cortical and/or unilateral and bilateral subcortical lesions and 40 normal speakers as control subjects. methods: the verbal tasks included monosyllabic, disyllabic dichotic and diotic tas...

traumatic basal ganglia hematoma is a rare condition defined as presence of hemorrhagic lesions in basal ganglia or adjacent structures suchas internal capsule, putamen and thalamus. bilateral basal ganglia hematoma are among the devastating and rare condition. we herein report a 28-year old man, a victim of car-car accident who was brought to our surgical emergency room by immediate loss of co...

A B S T R A C T Introduction:We investigated differential role of cortical and subcortical regions in verbal and non-verbal sound processing in ten patients who were native speakers of Persian with unilateral cortical and/or unilateral and bilateral subcortical lesions and 40 normal speakers as control subjects. Methods: The verbal tasks included monosyllabic, disyllabic dichotic and diotic tas...

developmental venous anomaly (dva) is a common lesion formerly known as venous angioma. dvas drain normal brain parenchyma; however, parenchymal abnormalities surrounding dvas have been reported. unilateral putamen and caudate calcification in the drainage territory of dvas has so far been reported in 7 cases, all with deep venous drainage. we present two additional cases of dvas, one with supe...

fahr’s disease is a rare syndrome characterized by symmetrical and bilateral intracranial calcifications. we report a 21-year-old male who presented with aggression, talkativeness, restlessness, and insomnia of recent onset. his neurological examination was normal. mental status examination and clinical investigation revealed mania. brain revealed symmetrical large areas and foci of calcificati...

The basal ganglia are large subcortical structures comprising several interconnected nuclei in the forebrain, midbrain, and diencephalon (Fig. 31.1). Because of certain features, it is generally agreed that basal ganglia participate in the control of movement. The largest portion of basal ganglia inputs and outputs are connected with motor areas. Second, the discharge of many basal ganglia neur...

 ABSTRACT Background: High resolution CT scan has made early diagnosis of intraventricular hemorrhage (IVH) easier. Posttraumatic intraventricular hemorrhage has been reported to a greater extent because of the CT scan. Methods: 904 patients were admitted in the NSICU from March 2001 to March 2002 with severe closed head injury, of those only 31 patients with intraventricular hemorrhage (GCS le...

An influential single case study (Calder, Keane, Manes, Antoun, & Young, 2000, Nature Neuroscience, 3, 1077-1078) recently showed a marked multimodal impairment in the recognition and experience of disgust in a patient with a left-hemispheric lesion of the basal ganglia and the insular cortex. Here, we investigated whether a similar deficit will be observed in a patient with a comparable lesion...

Intraparenchymal meningiomas without dural attachment are extremely rare, especially when they occur in basal ganglia region in child. An 8-year-old boy was admitted at our hospital, complaining of recurrent headache and vomiting for 3 months. Neurological examination showed impaired vision and mild paresis of the left extremities. Magnetic resonance imaging demonstrated a lesion located in the...