Somatosensory cortical activations are suppressed in patients with tactile extinction: a PET study.

Abstract:

OBJECTIVE:To investigate whether tactile extinction alters the cortical somatosensory activations induced by hand vibration. BACKGROUND:Tactile extinction occurs mainly after right-brain lesions and consists of the inability to perceive a contralesional cutaneous stimulation when a similar stimulus is applied to the mirror region of the ipsilesional hemibody. The pathophysiology of tactile extinction is poorly understood, but it is considered to be a deficit of selective attention of somatosensory stimuli. Although other theories have been proposed, our understanding of the pathophysiology of tactile extinction may benefit from functional imaging studies. METHODS:We selected three patients with pure tactile extinction and a mainly subcortical right-brain lesion that spared the primary sensorimotor cortex (SM1). We used PET to investigate the responses to unilateral and bilateral hand vibration in SM1 and the secondary somatosensory cortical area (SII). RESULTS:During bilateral hand vibration, activation was normal in the left SM1, suppressed in the right SM1, and markedly decreased in both SII, which was consistent with the extinction of the left-hand stimulus. During unilateral left-hand vibration, the activation of the right SM1 was still markedly impaired, but the activation of both SII was normal. CONCLUSIONS:We found marked changes in the activation of cortical somatosensory areas induced by hand vibration in patients with tactile extinction. The role of selective attention in cortical activation is also examined.

journal_name

Neurology

journal_title

Neurology

authors

Remy P,Zilbovicius M,Degos JD,Bachoud-Lévi AC,Rancurel G,Cesaro P,Samson Y

doi

10.1212/wnl.52.3.571

subject

Has Abstract

pub_date

1999-02-01 00:00:00

pages

571-7

issue

3

eissn

0028-3878

issn

1526-632X

journal_volume

52

pub_type

杂志文章
  • Cerebral metabolism in fatal familial insomnia: relation to duration, neuropathology, and distribution of protease-resistant prion protein.

    abstract::We used [18F]-2-fluoro-2-deoxy-D-glucose (FDG) and PET to study regional cerebral glucose utilization in seven patients with fatal familial insomnia (FFI), an inherited prion disease with a mutation at codon 178 of the prion protein gene. Four patients were methionine/methionine homozygotes at codon 129 (symptom durat...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.49.1.126

    authors: Cortelli P,Perani D,Parchi P,Grassi F,Montagna P,De Martin M,Castellani R,Tinuper P,Gambetti P,Lugaresi E,Fazio F

    更新日期:1997-07-01 00:00:00

  • Cervical epidural abscess.

    abstract::We present 3 new cases of cervical epidural abscess (CEA), a rare condition, along with a review of 12 other case reports. The average patient age was 45 years; just over half were male. The abscesses usually involved the mid to lower cervical region and extended an average of three to four segments. Neck stiffness wa...

    journal_title:Neurology

    pub_type: 杂志文章,评审

    doi:10.1212/wnl.37.11.1747

    authors: Lasker BR,Harter DH

    更新日期:1987-11-01 00:00:00

  • Relationship between inflammatory lesions and cerebral atrophy in multiple sclerosis.

    abstract:OBJECTIVE:To investigate the temporal relationship between inflammation and cerebral atrophy in a longitudinal study of 19 patients with relapsing-remitting multiple sclerosis (RRMS) using serial monthly contrast enhanced MRI examinations and monthly measurements of brain fractional volume (BFV) for an average of 4 (ra...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/01.wnl.0000197982.78063.06

    authors: Richert ND,Howard T,Frank JA,Stone R,Ostuni J,Ohayon J,Bash C,McFarland HF

    更新日期:2006-02-28 00:00:00

  • Infections and course of disease in mild forms of Guillain-Barré syndrome.

    abstract:OBJECTIVE:Twenty-eight percent of patients with the Guillain-Barré syndrome remain able to walk unaided. Studying patients with the mild form of Guillain-Barré syndrome can further contribute to knowledge of the spectrum of the syndrome and explore whether this subgroup may need treatment with IV immunoglobulin. METHO...

    journal_title:Neurology

    pub_type: 杂志文章,多中心研究

    doi:10.1212/wnl.58.4.610

    authors: Van Koningsveld R,Schmitz PI,Ang CW,Groen J,Osterhaus AD,Van der Meché FG,Van Doorn PA

    更新日期:2002-02-26 00:00:00

  • Methylphenidate for gait impairment in Parkinson disease: a randomized clinical trial.

    abstract:BACKGROUND:There is a paucity of therapies for gait impairment in Parkinson disease (PD). Open-label studies have suggested improved gait after treatment with methylphenidate (MPD). OBJECTIVE:To evaluate the efficacy of MPD for the treatment of gait impairment in PD. METHODS:Twenty-seven subjects with PD and moderate...

    journal_title:Neurology

    pub_type: 杂志文章,随机对照试验

    doi:10.1212/WNL.0b013e3182143537

    authors: Espay AJ,Dwivedi AK,Payne M,Gaines L,Vaughan JE,Maddux BN,Slevin JT,Gartner M,Sahay A,Revilla FJ,Duker AP,Shukla R

    更新日期:2011-04-05 00:00:00

  • Paradoxical longevity in obese patients with intracerebral hemorrhage.

    abstract:BACKGROUND:The paradoxical phenomenon of relative longevity among obese patients with established diseases has been reported for various disease conditions. The authors sought to investigate whether the obesity paradox also applies to intracerebral hemorrhage (ICH) survivors. METHODS:A total of 1,604 patients with ICH...

    journal_title:Neurology

    pub_type: 杂志文章,多中心研究

    doi:10.1212/WNL.0b013e31820b7667

    authors: Kim BJ,Lee SH,Ryu WS,Kim CK,Lee J,Yoon BW

    更新日期:2011-02-08 00:00:00

  • Juvenile-onset glycogen storage disease type II with novel mutations in acid alpha-glucosidase gene.

    abstract::The authors describe two novel mutations of the acid alpha-glucosidase gene, P361L and R437C, which define the juvenile-onset glycogen storage disease type II (GSDII) in a 16-year-old Chinese patient. The asymptomatic 13-year-old brother of the proband is also a compound heterozygote of the two mutations. These result...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/01.wnl.0000048661.95327.bf

    authors: Lam CW,Yuen YP,Chan KY,Tong SF,Lai CK,Chow TC,Lee KC,Chan YW,Martiniuk F

    更新日期:2003-02-25 00:00:00

  • Intermittent cyclophosphamide with prednisone versus placebo for polyneuropathy with IgM monoclonal gammopathy.

    abstract:BACKGROUND:The best treatment for polyneuropathy associated with IgM monoclonal gammopathy (MGUS) is unknown. Oral cyclophosphamide combined with prednisone showed limited efficacy in a previous open label pilot study. We therefore performed a double-blind, randomized, placebo-controlled study of combined oral cyclopho...

    journal_title:Neurology

    pub_type: 杂志文章,随机对照试验

    doi:10.1212/01.wnl.0000265055.28218.cc

    authors: Niermeijer JM,Eurelings M,van der Linden MW,Lokhorst HM,Franssen H,Fischer K,Teunissen LL,van den Berg LH,Schobben F,Wokke JH,Notermans NC

    更新日期:2007-07-03 00:00:00

  • Short-chain fatty acids and encephalopathy of Reye's syndrome.

    abstract::Plasma levels of six short-chain fatty acids (SCFA) were measured in 23 Reye's syndrome patients. In sequential measurements, only propionic acid correlated closely with neurologic severity. Although admission SCFA levels were slightly elevated, there were no significant differences between patients grouped by severit...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.34.6.831

    authors: McArthur B,Sarnaik AP,Mitchell RA

    更新日期:1984-06-01 00:00:00

  • Diagnosis of cryptococcal meningitis by cytologic methods: an old technique revisited.

    abstract::In six patients with cryptococcal meningitis, diagnosis was made by routine cytologic examination of cerebrospinal fluid (CSF). A seventh patient had a false-positive cryptococcal antigen titer, and no organism was seen on SCF examination. The patient had herpes simplex encephalitis on brain biopsy. Cytologic examinat...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.30.1.102

    authors: Bernad PG,Szyfelbein WM,Weiss HD,Richardson EP Jr

    更新日期:1980-01-01 00:00:00

  • Repetitive transcranial magnetic stimulation of the motor cortex ameliorates spasticity in multiple sclerosis.

    abstract:OBJECTIVE:To investigate whether repetitive transcranial magnetic stimulation (rTMS) can modify spasticity. METHODS:We used high-frequency (5 Hz) and low-frequency (1 Hz) rTMS protocols in 19 remitting patients with relapsing-remitting multiple sclerosis and lower limb spasticity. RESULTS:A single session of 1 Hz rTM...

    journal_title:Neurology

    pub_type: 临床试验,杂志文章

    doi:10.1212/01.wnl.0000257818.16952.62

    authors: Centonze D,Koch G,Versace V,Mori F,Rossi S,Brusa L,Grossi K,Torelli F,Prosperetti C,Cervellino A,Marfia GA,Stanzione P,Marciani MG,Boffa L,Bernardi G

    更新日期:2007-03-27 00:00:00

  • Treating melancholia at home: theoretical wisdom and grim reality in the career of E.C. Seguin.

    abstract::E.C. Seguin was one of the early, influential 19th-century neurologists who participated in the development of neurology as a specialty in the United States. Born in France, but raised from early childhood in the United States, Seguin published widely, developed a high-profile New York City practice, and was named Cli...

    journal_title:Neurology

    pub_type: 传,历史文章,杂志文章

    doi:10.1212/WNL.0b013e3182904f55

    authors: Goetz CG,Harter DH

    更新日期:2013-04-30 00:00:00

  • Prevention of stroke with ticlopidine: who benefits most? TASS Baseline and Angiographic Data Subgroup.

    abstract::We examined the baseline characteristics of patients in the Ticlopidine Aspirin Stroke Study (TASS) to determine if the effects of the two treatments in preventing stroke differed in various subgroups. Patients with the following characteristics did less well on aspirin: elevated creatinine, hypertension or diabetes r...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.42.1.111

    authors: Grotta JC,Norris JW,Kamm B

    更新日期:1992-01-01 00:00:00

  • Non-neoplastic pineal cysts.

    abstract::We identified 53 patients with non-neoplastic cysts of the pineal gland. In contrast to patients with pineal neoplasms, pineal cysts are usually asymptomatic. They infrequently obstruct the aqueduct to cause hydrocephalus or compress the tectum to produce the neuro-ophthalmologic signs of dorsal midbrain dysfunction. ...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.41.7.1034

    authors: Fetell MR,Bruce JN,Burke AM,Cross DT,Torres RA,Powers JM,Stein BM

    更新日期:1991-07-01 00:00:00

  • Reemergence of activation with poststroke somatosensory recovery: a serial fMRI case study.

    abstract::The authors demonstrate the potential for poststroke return of activation in regions normally involved in touch discrimination in a serial, whole-brain fMRI study of a patient with marked sensory loss followed by good recovery. A return of activation in ipsilesional primary and bilateral secondary somatosensory cortic...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.59.5.749

    authors: Carey LM,Abbott DF,Puce A,Jackson GD,Syngeniotis A,Donnan GA

    更新日期:2002-09-10 00:00:00

  • Identification, causation, alleviation, and prevention of complications (ICAP): an approach to symptom and disability management in multiple sclerosis.

    abstract::Comprehensive management of patients with multiple sclerosis (MS) includes treatment to modify the disease course and interventions to address the persistent symptoms and consequences of this chronic illness, which can affect patients for decades. Although much excitement and attention accompanies new therapeutic init...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e31818f3da5

    authors: Cohen BA

    更新日期:2008-12-09 00:00:00

  • Kearns-Sayre syndrome and complex II deficiency.

    abstract::A 25-year-old woman with Kearns-Sayre syndrome (KSS) had complete external ophthalmoplegia, short stature, ataxia, cardiac conduction defects, and pigmentary retinopathy. Muscle biopsy revealed ragged-red fibers. Electron microscopy showed increased numbers of mitochondria with disordered structure and paracrystalline...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.39.5.693

    authors: Rivner MH,Shamsnia M,Swift TR,Trefz J,Roesel RA,Carter AL,Yanamura W,Hommes FA

    更新日期:1989-05-01 00:00:00

  • Timing of milestone competency acquisition in neurology residency: What by when?

    abstract:OBJECTIVE:To determine the stage of training at which neurology residents should achieve individual elements of the Accreditation Council for Graduate Medical Education neurology Milestones and to examine the relationship between perceived importance of Milestones and the stage by which they should be achieved. METHOD...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0000000000006361

    authors: Jones LK Jr,Eggers SDZ,Capobianco DJ,Boes CJ

    更新日期:2018-10-16 00:00:00

  • Apolipoprotein E genotype and memory in the sixth decade of life.

    abstract:BACKGROUND:Virtually all adult studies of APOE genotypes and cognition have included individuals over 60. In older adults, epsilon 4 carriers may manifest greater cognitive asymmetries than non-epsilon 4 carriers even in the absence of overall mean differences. General cognitive ability may also be affected by aging an...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/01.wnl.0000286941.74372.cc

    authors: Schultz MR,Lyons MJ,Franz CE,Grant MD,Boake C,Jacobson KC,Xian H,Schellenberg GD,Eisen SA,Kremen WS

    更新日期:2008-05-06 00:00:00

  • The lower hippocampus global connectivity, the higher its local metabolism in Alzheimer disease.

    abstract:OBJECTIVES:Based on the hippocampus disconnection hypothesis in Alzheimer disease (AD), which postulates that uncoupling from cortical inputs contributes to disinhibition-like changes in hippocampus activity, we suggested that in patients with AD, the more the intrinsic functional connectivity between hippocampus and p...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0000000000001575

    authors: Tahmasian M,Pasquini L,Scherr M,Meng C,Förster S,Mulej Bratec S,Shi K,Yakushev I,Schwaiger M,Grimmer T,Diehl-Schmid J,Riedl V,Sorg C,Drzezga A

    更新日期:2015-05-12 00:00:00

  • Brain amyloid load and its associations with cognition and vascular risk factors in FINGER Study.

    abstract:OBJECTIVE:To investigate brain amyloid pathology in a dementia-risk population defined as cardiovascular risk factors, aging, and dementia risk (CAIDE) score of at least 6 but with normal cognition and to examine associations between brain amyloid load and cognitive performance and vascular risk factors. METHODS:A sub...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0000000000004827

    authors: Kemppainen N,Johansson J,Teuho J,Parkkola R,Joutsa J,Ngandu T,Solomon A,Stephen R,Liu Y,Hänninen T,Paajanen T,Laatikainen T,Soininen H,Jula A,Rokka J,Rissanen E,Vahlberg T,Peltoniemi J,Kivipelto M,Rinne JO

    更新日期:2018-01-16 00:00:00

  • Effects of weight loss on the course of idiopathic intracranial hypertension in women.

    abstract:OBJECTIVE:To determine the role of weight loss in the treatment of idiopathic intracranial hypertension (IIH) in obese women. METHODS:Chart review of 250 patients with suspected IIH revealed 58 women who met our criteria, did not undergo early surgical intervention, and had adequate documentation of visual status, pap...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.50.4.1094

    authors: Kupersmith MJ,Gamell L,Turbin R,Peck V,Spiegel P,Wall M

    更新日期:1998-04-01 00:00:00

  • Neuropathological findings in Sneddon's syndrome.

    abstract::The authors report the neuropathologic findings in a case of Sneddon's syndrome. There were multiple small, predominantly cortical, infarcts, with focal hyperplasia and fibrotic occlusion of arterial vessels in the superficial white matter, cortex, and leptomeninges. A very occasional arterial thrombus was seen. These...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/01.wnl.0000055931.66009.d3

    authors: Hilton DA,Footitt D

    更新日期:2003-04-08 00:00:00

  • Effectiveness of opicapone and switching from entacapone in fluctuating Parkinson disease.

    abstract:OBJECTIVE:To evaluate the effectiveness of opicapone as add-on to levodopa and the effects of switching from entacapone over 1 year of treatment in patients with fluctuating Parkinson disease. METHODS:After completion of a placebo- and entacapone-controlled double-blind study of opicapone (5, 25, or 50 mg), 495 patien...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0000000000005557

    authors: Ferreira JJ,Lees AJ,Poewe W,Rascol O,Rocha JF,Keller B,Soares-da-Silva P

    更新日期:2018-05-22 00:00:00

  • Three-year follow-up of prospective trial of focused ultrasound thalamotomy for essential tremor.

    abstract:OBJECTIVE:To test the hypothesis that transcranial magnetic resonance-guided focused ultrasound (tcMRgFUS) thalamotomy is effective, durable, and safe for patients with medication-refractory essential tremor (ET), we assessed clinical outcomes at 3-year follow-up of a controlled multicenter prospective trial. METHODS:...

    journal_title:Neurology

    pub_type: 杂志文章,随机对照试验

    doi:10.1212/WNL.0000000000008561

    authors: Halpern CH,Santini V,Lipsman N,Lozano AM,Schwartz ML,Shah BB,Elias WJ,Cosgrove GR,Hayes MT,McDannold N,Aldrich C,Eisenberg HM,Gandhi D,Taira T,Gwinn R,Ro S,Witt J,Jung NY,Chang JW,Rosenberg J,Ghanouni P

    更新日期:2019-12-10 00:00:00

  • Gray matter differences in patients with functional movement disorders.

    abstract:OBJECTIVE:To explore alterations in gray matter volume in patients with functional movement disorders. METHODS:We obtained T1-weighted MRI on 48 patients with clinically definite functional movement disorders, a subset of functional neurologic symptom disorder characterized by abnormal involuntary movements, and on 55...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0000000000006514

    authors: Maurer CW,LaFaver K,Limachia GS,Capitan G,Ameli R,Sinclair S,Epstein SA,Hallett M,Horovitz SG

    更新日期:2018-11-13 00:00:00

  • Alterations in bcl-2 and caspase gene family protein expression in human temporal lobe epilepsy.

    abstract:OBJECTIVE:To address the role of cell death regulatory genes of the bcl-2 and caspase families in the neuropathology of human epilepsy using tissue extracted from patients undergoing temporal lobectomy for intractable seizures. METHODS:Using Western blotting and immunohistochemistry, the authors investigated the expre...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.55.2.250

    authors: Henshall DC,Clark RS,Adelson PD,Chen M,Watkins SC,Simon RP

    更新日期:2000-07-25 00:00:00

  • Current treatment pathways in ALS: a European perspective.

    abstract::This article presents the findings relating to the European subgroup of 91 patients in an international survey of the current diagnosis and treatment of patients with amyotrophic lateral sclerosis (ALS). The mean time between first symptoms and first consultation with a physician was 4.9 months, and mean delay in seei...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:

    authors: Dengler R

    更新日期:1999-01-01 00:00:00

  • Does a birthday predispose to vascular events?

    abstract:OBJECTIVE:To examine the influence of birthdays on the onset and course of vascular events such as stroke, TIA, and acute myocardial infarction (AMI). METHODS:This population-based study included all emergency department (ED) admissions due to ischemic stroke, TIA, or AMI from April 2002 to March 2004 in Ontario, Cana...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/01.wnl.0000217915.06544.aa

    authors: Saposnik G,Baibergenova A,Dang J,Hachinski V

    更新日期:2006-07-25 00:00:00

  • Prevalence and patterns of cognitive impairment in sporadic ALS.

    abstract:OBJECTIVE:To investigate the prevalence and nature of cognitive changes associated with sporadic amyotrophic lateral sclerosis (ALS) using a large scale study. METHODS:Consecutive patients with sporadic ALS (n = 279) underwent comprehensive neurologic evaluation and neuropsychological testing. Testing data from normal...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/01.wnl.0000172911.39167.b6

    authors: Ringholz GM,Appel SH,Bradshaw M,Cooke NA,Mosnik DM,Schulz PE

    更新日期:2005-08-23 00:00:00