Abstract:
:Regional cerebral blood flow (rCBF) was measured in human subjects during saccadic eye movements by a 254-channel dynamic gamma camera. Focal rCBF increases were repeatedly observed in an area within the middle precentral and premotor regions which corresponds to the frontal eye field in humans. Our findings suggest that this region is localized between the "face" and "hand" areas in the precentral gyrus and extends anteriorly out of the primary motor strip into the adjacent premotor zone. In addition, saccades were associated with focal blood flow increases in regions corresponding to the frontal supplementary motor area and to the posterior temporooccipital visual association cortex. Similar changes in patterns of rCBF occurred during contralateral and ipsilateral horizontal saccades and also during vertical saccades, and did not differ between the right and left hemispheres. Focal rCBF increases were observed in the frontal eye field during several additional test procedures including ocular fixation and visual perception of a nonmoving target, auditory stimulation with closed eyes, and reading. It is presumed that these focal flow increases reflect increased localized neuronal activity and metabolic rate and therefore permit visualization of the cortical activation pattern associated with saccadic eye movements in humans.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Melamed E,Larsen Bdoi
10.1002/ana.410050112subject
Has Abstractpub_date
1979-01-01 00:00:00pages
79-88issue
1eissn
0364-5134issn
1531-8249journal_volume
5pub_type
杂志文章abstract::We report the clinical, radiological, and neuropathological features of selective brainstem injury in an asphyxiated term infant. Disproportionate injury to thalamus, basal ganglia, and brainstem with relative sparing of cortex and subcortical white matter is observed occasionally after acute total asphyxia. Although ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410230115
更新日期:1988-01-01 00:00:00
abstract:OBJECTIVE:Neuronal loss, a key substrate of irreversible disability in multiple sclerosis (MS), is a recognized feature of MS cortical pathology of which the cause remains unknown. Fibrin(ogen) deposition is neurotoxic in animal models of MS, but has not been evaluated in human progressive MS cortex. The aim of this st...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24997
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVE:Right-handedness and left-sided language lateralization is an unresolved mystery with unknown cause/effect relations. Most studies suggest that the language lateralization is related to a fundamental brain asymmetry: right-handedness may be secondary. We analyzed the possibility of an opposite cause/effect re...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21538
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVE:Chronic demyelination can result in axonopathy and is associated with human neurological conditions such as multiple sclerosis (MS) in adults and cerebral palsy in infants. In these disorders, myelin regeneration is inhibited by impaired differentiation of oligodendrocyte progenitors into myelin-producing oli...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.23590
更新日期:2012-08-01 00:00:00
abstract::The genetic analysis of simple Mendelian epilepsies remains a key strategy in advancing our understanding of epilepsy. In this article, we describe a new family epilepsy syndrome, partial epilepsy with pericentral spikes, which we map to chromosome 4p15. We distinguish it clinically, electrophysiologically, and geneti...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10221
更新日期:2002-06-01 00:00:00
abstract::Antibody against acetylcholine receptor (AChR) of human skeletal muscle was measured using enzyme-linked immunosorbent assay and found in 23 (74%) of 31 Japanese patients with generalized myasthenia gravis. In 15 patients with generalized myasthenia gravis who had not undergone thymectomy and who were not receiving ad...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410150214
更新日期:1984-02-01 00:00:00
abstract::Focal cortical myoclonus is rare. Obvious causes include tumor or atrophy involving the motor strip, but in some cases no cause is apparent. We present 4 patients who started to have focal myoclonus in childhood. All had focal motor seizures as well, and one had recurrent focal motor status epilepticus. All 4 had a mi...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410230402
更新日期:1988-04-01 00:00:00
abstract::Thirty patients in whom the initial diagnosis of multiple sclerosis was clinically entertained underwent cranial magnetic resonance imaging (MRI) in close temporal relationship to cranial x-ray computed tomography (CT), electrodiagnostic studies (visual evoked responses, brainstem auditory evoked responses, and somato...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410170509
更新日期:1985-05-01 00:00:00
abstract::B cells have long played an enigmatic role in the scenario of multiple sclerosis pathogenesis. This review summarizes recent progress in our understanding of B-cell trafficking, survival, and differentiation in the central nervous system (CNS). We propose four possible routes of intrathecal immunoglobulin-producing ce...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.20890
更新日期:2006-06-01 00:00:00
abstract::In patients with the frontal variant of frontotemporal lobar degeneration (fv-FTLD), behavioral abnormalities may vary from apathy with motor slowness (apathetic form) to disinhibition with agitation (disinhibited form). These clinical presentations may be related to specific regional cerebral dysfunction and to defic...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20365
更新日期:2005-02-01 00:00:00
abstract::To elucidate the role of D-serine in human central nervous system, we analyzed D-serine, L-serine, and glycine concentrations in cerebrospinal fluid of healthy children and children with a defective L-serine biosynthesis (3-phosphoglycerate dehydrogenase deficiency). Healthy children showed high D-serine concentration...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20977
更新日期:2006-10-01 00:00:00
abstract::Visual (VEP), brainstem auditory (BAEP), and somatosensory (SEP) evoked potential tests were performed in 45 patients representing ten types of inherited disorders in which ataxia was the most prominent symptom. Comparable VEP abnormalities were present among all types of patients. Normal BAEP tests were recorded in m...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410130106
更新日期:1983-01-01 00:00:00
abstract::We describe a 33-year-old homosexual man with a steroid-responsive, remitting and relapsing leukoencephalopathy associated with recent human immunodeficiency virus type 1 (HIV-1) seroconversion. Biopsy of a parieto-occipital lesion revealed demyelination and astrogliosis with focal necrosis. Detailed investigations de...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410310107
更新日期:1992-01-01 00:00:00
abstract::During passive extension of the elbow, the triceps muscle normally shows a burst of electromyographic activity. This shortening reaction (SR) is known to be exaggerated in extrapyramidal disease states, but the effects of cerebellar disease are unknown. The SR was measured in both arms of a patient with hemiataxia, th...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410110307
更新日期:1982-03-01 00:00:00
abstract::The Pilot Stroke Data Bank obtained information on 94 patients with intracerebral hemorrhage. These data were used to identify factors predictive of 30-day outcome from among 85 demographic, historical, clinical, and laboratory variables generally available to clinicians on the day of admission. The 9 univariate facto...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410240213
更新日期:1988-08-01 00:00:00
abstract::We present the clinicopathological features of two siblings from a consanguineous marriage who presented with respiratory hypoventilation and died 10 days and 4 years later, respectively. This disorder showed extensive tau neuropathology, and both had a novel homozygous S352L tau gene mutation. This is the first descr...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10747
更新日期:2003-11-01 00:00:00
abstract::To investigate the potential role of drug therapy in preventing or exacerbating seizure-related brain injury in the prepubescent brain, we administered kainic acid to rats at postnatal day 35. Therapy with daily phenobarbital was started directly before or 1 day after kainic acid was administered, and was continued th...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410360314
更新日期:1994-09-01 00:00:00
abstract::Ubiquitin ligases regulate quantities and activities of target proteins, often pleiotropically. The malin ubiquitin E3 ligase is reported to regulate autophagy, the misfolded protein response, microRNA silencing, Wnt signaling, neuronatin-mediated endoplasmic reticulum stress, and the laforin glycogen phosphatase. Mal...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24104
更新日期:2014-03-01 00:00:00
abstract::Intellectual disability is common and is associated with significant morbidity. Until the latter half of the 20th century, there were no efficacious treatments. Following initial breakthroughs associated with newborn screening and metabolic corrections, little progress was made until recently. With improved understand...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.24002
更新日期:2013-09-01 00:00:00
abstract::Successful axon regeneration depends on the expression of regeneration-associated genes by axotomized neurons. Here, we demonstrate, for the first time to our knowledge, the expression of regeneration-associated genes by axotomized human CNS neurons. In situ hybridization and immunohistochemistry showed a transient in...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10724
更新日期:2003-10-01 00:00:00
abstract::Detrusor hyperreflexia is a relevant clinical symptom for patients suffering from Parkinson's disease. In a series of 16 patients, we demonstrated that subthalamic deep brain stimulation has a significant and urodynamically recordable effect leading to a normalization of pathologically increased bladder sensibility. ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10806
更新日期:2004-01-01 00:00:00
abstract::Plasma exchange (PE) is the standard treatment in Guillain-Barré syndrome (GBS) patients who have lost the ability to walk. The effect of exchanges before this stage and the optimal number of exchanges for the other patients are still unknown. We randomized 556 GBS patients according to severity and number of exchange...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1002/ana.410410304
更新日期:1997-03-01 00:00:00
abstract::To determine the influence of chronic ethanol intake on the central nervous system, we studied 40 asymptomatic, well-nourished, chronic alcoholics (mean age, 42.6 +/- 9.1 years) and 20 age-, sex-, and education-matched control subjects. Studies included neuropsychological testing, visual and short-latency auditory evo...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.410410507
更新日期:1997-05-01 00:00:00
abstract:OBJECTIVE:Lymphocytic choriomeningitis virus (LCMV) is a human pathogen and an emerging neuroteratogen. When the infection occurs during pregnancy, the virus can target and damage the fetal brain and retina. We examined the spectrum of clinical presentations, neuroimaging findings, and clinical outcomes of children wit...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21161
更新日期:2007-10-01 00:00:00
abstract::Patients with atrial fibrillation are at risk for cerebral embolism; however, the roles of chronic anticoagulation or antiplatelet therapy for stroke prevention in patients with nonvalvular atrial fibrillation have been controversial. Recently, the results of three large prospective randomized trials that examined the...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410300402
更新日期:1991-10-01 00:00:00
abstract::Four guanidino compounds that have been found to be markedly increased in cerebrospinal fluid and brain tissue of uremic patients, namely, guanidine, methylguanidine, creatinine, and guanidinosuccinic acid, were applied to mouse spinal cord neurons in primary dissociated cell culture to evaluate their effects on posts...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410280505
更新日期:1990-11-01 00:00:00
abstract::WAIS performance was compared in 35 pairs of left- and right-handed subjects who had been individually matched for lateralization, cause of brain damage, age, education, and gender. WAIS results were similar in the two groups as well as in two subgroups of subjects with unilateral brain damage. No differences between ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410020514
更新日期:1977-11-01 00:00:00
abstract::Axonal loss is thought to be a likely cause of persistent disability after a multiple sclerosis relapse; therefore, noninvasive in vivo markers specific for axonal loss are needed. We used optic neuritis as a model of multiple sclerosis relapse to quantify axonal loss of the retinal nerve fiber layer (RNFL) and second...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20575
更新日期:2005-09-01 00:00:00
abstract::Although the cause of multiple sclerosis (MS) has remained obscure, many findings support an autoimmune pathogenesis on the background of a complex interaction between multiple genes and environmental factors. Accordingly, targeting the immune system has been a rational approach for the treatment of MS. The developmen...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.21289
更新日期:2007-10-01 00:00:00
abstract::The factors contributing to selective motoneuron loss in amyotrophic lateral sclerosis (ALS) remain undefined. To investigate whether calcium-binding proteins contribute to selective motoneuron vulnerability in ALS, we compared calbindin-D28K and parvalbumin immunoreactivity in motoneuron populations in human ALS, and...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410360608
更新日期:1994-12-01 00:00:00