Unilateral spatial neglect due to right frontal lobe haematoma.
نویسندگان
چکیده
Two patients with unilateral spatial neglect caused by right frontal lobe lesions underwent cerebral blood flow studies. A 54-year-old, right-handed woman developed left hemiplegia and frontal lobe neglect associated with cerebral haemorrhage after surgical excision of a frontal tumour. A 66-year-old, right-handed woman developed a haemorrhage in the right frontal lobe caused by rupture of an aneurysm. This was followed by left hemiplegia and frontal lobe neglect. In both cases, 123I-iodoamphetamine single photon emission CT disclosed a reduction in regional cerebral blood flow localised along the circumference of the haematoma in the frontal lobe, but did not reveal any lesions in the parieto-occipital junction. These findings suggest that, in these two cases, the frontal lobe neglect was caused by lesions confined to the frontal lobe.
منابع مشابه
Preserved leftward movement in left unilateral spatial neglect due to frontal lesions.
Three patients with left unilateral spatial neglect after predominantly frontal lobe lesions were asked to extend a horizontal line leftwards to double its original length. In this line extension task, they readily executed movements in or towards the contralesional left space. They performed the task in the left and right hemispaces as well as in the midline. The mean extension lengths did not...
متن کاملIs the intact side really intact? Perseverative responses in patients with unilateral neglect: a productive manifestation.
The main defective manifestations of extra-personal unilateral spatial neglect concern the side of space contralateral to the hemispheric lesion (contralesional). Since the disorder is more frequent and severe after damage to the right hemisphere, patients typically fail to explore the left side and ignore stimuli located in that sector of space. The patients' behaviour in the side of space ips...
متن کاملUnilateral striatal damage following status epilepticus of ipsilateral frontal lobe origin
A 35-year-old man with an old contusional haematoma in the right frontal lobe developed status epilepticus (SE) of right frontal origin. On magnetic resonance (MR) images 10 days after SE, the right striatum showed signal enhancement with Gd-DTPA administration. Subsequent MR imaging 1 month later indicated prolonged T1 and T2 relaxation times in the right striatum. Prolonged seizure activity i...
متن کاملDissociated neglect behavior following sequential strokes in the right hemisphere.
A 42-year-old woman suffered two focal right hemisphere strokes, sequentially damaging different components of a proposed cerebral network for the spatial distribution of attention. Her first stroke was centered in the right frontal lobe and resulted in left hemi-spatial neglect but only for tasks that emphasize exploratory-motor components of directed attention. A second stroke occurred 20 day...
متن کاملPrism adaptation enhances activity of intact fronto-parietal areas in both hemispheres in neglect patients.
Unilateral spatial neglect involves a failure to report or orient to stimuli in the contralesional (left) space due to right brain damage, with severe handicap in everyday activities and poor rehabilitation outcome. Because behavioral studies suggest that prism adaptation may reduce spatial neglect, we investigated the neural mechanisms underlying prism effects on visuo-spatial processing in ne...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of neurology, neurosurgery, and psychiatry
دوره 57 1 شماره
صفحات -
تاریخ انتشار 1994