Effects of movement on somatosensory N20m fields and high-frequency oscillations.


:Somatosensory evoked fields were recorded to determine the effects of movement and attention on high-frequency oscillations during active finger movements of the ipsilateral and contralateral sides in response to electrical stimulation of the median nerve. A whole-scalp neuromagnetometer was used to record somatosensory evoked fields from eight subjects following electric median nerve stimulation at the wrist. The following three sessions were performed: (1). rest, (2). movement of fingers on the ipsilateral in response to stimulation and (3). movement of fingers on the contralateral in response to stimulation. The somatosensory evoked fields with a wide-bandpass (0.1-1000 Hz) were recorded. High-frequency oscillations and N20m were separated by subsequent high-pass (> 300 Hz) and low-pass (< 300 Hz) filtering. The maximum amplitude of high-frequency oscillations decreased during finger movements accompanying a decrease in somatosensory N20m dipole strength. Activation of the motor cortex appeared to suppress both the amplitude of high-frequency oscillations and the N20m dipole strength.






Inoue K,Harada T,Kaseda Y,Mimori Y,Hashizume A,Hashimoto I,Matsumoto M




Has Abstract


2002-10-28 00:00:00












  • The function and expression of sproutin, a novel neurite outgrowth factor.

    abstract::TA20 cDNA was previously cloned as a neurite outgrowth factor from a hybridoma of mouse and rat cells, NG108-15. To clarify the detailed function and tissue distribution of this gene, homologous sequences of rat and mouse were identified. The cloned sequences had no homology with known genes, and was designated as spr...


    pub_type: 杂志文章


    authors: Tohda C,Jacobowitz DM

    更新日期:1999-07-13 00:00:00

  • Regeneration of axons from central neurons into microchips at the level of the spinal cord.

    abstract::Axons from central neurons can regenerate into the tissue matrix formed within a silicone tube capped with two pieces of peripheral nerve, one of which had been sutured to a lesion in the spinal cord. Such axons can grow through a transversely positioned microchip in the tube. These observations suggest that it is fea...


    pub_type: 杂志文章


    authors: Lundborg G,Drott J,Wallman L,Reimer M,Kanje M

    更新日期:1998-03-30 00:00:00

  • Neural processes underlying perceptual enhancement by visual speech gestures.

    abstract::This fMRI study explores brain regions involved with perceptual enhancement afforded by observation of visual speech gesture information. Subjects passively identified words presented in the following conditions: audio-only, audiovisual, audio-only with noise, audiovisual with noise, and visual only. The brain may use...


    pub_type: 杂志文章


    authors: Callan DE,Jones JA,Munhall K,Callan AM,Kroos C,Vatikiotis-Bateson E

    更新日期:2003-12-02 00:00:00

  • Expression of TRPV1 in the C57BL/6 mice brain hippocampus and cortex during development.

    abstract::Transient receptor potential vanilloid 1 (TRPV1) channel has been found to be expressed in a variety of tissues over the last few years, including the central nervous system (CNS). However, the distribution of TRPV1 in the CNS remains a controversial question. Here, we reveal that the expression of TRPV1 can be detect...


    pub_type: 杂志文章


    authors: Huang WX,Min JW,Liu YQ,He XH,Peng BW

    更新日期:2014-04-16 00:00:00

  • BOLD signal response to cocaine varies with sexual receptivity in female rats.

    abstract::Blood oxygen level dependent MRI was used to test whether cocaine-stimulated mesolimbic activity varied with sexual receptivity. Rats were randomly screened for lordotic responses and were then imaged for their responses to centrally administered cocaine. We observed that female rats expressing no lordosis showed a gr...


    pub_type: 杂志文章


    authors: Febo M,Segarra AC,Stolberg TL,Ferris CF

    更新日期:2011-01-05 00:00:00

  • Antisense oligonucleotide to c-fos induces ipsilateral rotational behaviour to d-amphetamine.

    abstract::The immediate-early genes, especially c-fos, have been suggested to have an important role in neuronal plasticity and memory. However, it has been difficult to determine if in fact c-fos can participate in control of behaviour. Here we can report that direct unilateral infusion into the rat neostriatum of an antisense...


    pub_type: 杂志文章


    authors: Sommer W,Bjelke B,Ganten D,Fuxe K

    更新日期:1993-12-13 00:00:00

  • Grating and plaid chrominance motion influences the suppressed ocular following response.

    abstract::Involuntary eye movements to foveal stimulation were measured in a monkey while it performed a fixation task. Second-order plaid motion generated higher velocities of eye movements than did first-order gratings, yet the latency of the early following response was no different for grating or plaid motion. Nevertheless,...


    pub_type: 杂志文章


    authors: Guo K,Benson PJ

    更新日期:1999-02-05 00:00:00

  • Acute marijuana effects on rCBF and cognition: a PET study.

    abstract::The effects of smoking marijuana on cognition and brain function were assessed with PET using H2(15)O. Regional cerebral blood flow (rCBF) was measured in five recreational users before and after smoking a marijuana cigarette, as they repeatedly performed an auditory attention task. Blood flow increased following smok...


    pub_type: 临床试验,杂志文章


    authors: O'Leary DS,Block RI,Flaum M,Schultz SK,Boles Ponto LL,Watkins GL,Hurtig RR,Andreasen NC,Hichwa RD

    更新日期:2000-11-27 00:00:00

  • Measurement of nitric oxide in the rat cerebral cortex during hypercapnoea.

    abstract::Changes in nitric oxide (NO) concentration and cerebral blood flow (CBF) in the parietal cortex during hypercapnoea were investigated in anaesthetized rats, using a NO-selective electrode and laser Doppler flowmetry. When hypercapnoea was induced by inhalation of 5% CO2 for 10 min, both the NO concentration and CBF in...


    pub_type: 杂志文章


    authors: Harada M,Fuse A,Tanaka Y

    更新日期:1997-03-03 00:00:00

  • A role for the TTX-resistant sodium channel Nav 1.8 in NGF-induced hyperalgesia, but not neuropathic pain.

    abstract::The tetrodotoxin-resistant voltage-gated sodium channel Nav 1.8 is expressed only in nociceptive sensory neurons. This channel has been proposed to contribute significantly to the sensitization of primary sensory neurons after injury. We have studied the nociceptive behaviours of mice carrying a null mutation in the N...


    pub_type: 杂志文章


    authors: Kerr BJ,Souslova V,McMahon SB,Wood JN

    更新日期:2001-10-08 00:00:00

  • Calcium-mediated neuronal degeneration following singlet oxygen production.

    abstract::NONINVASIVE photolytic injury to targeted neuronal subpopulations in vivo causes unique, slowly progressive neuronal degeneration. To examine the mechanisms of degeneration toward development and transplantation studies, cytosolic calcium levels were measured in vitro from neocortical neurons after incorporation of ph...


    pub_type: 杂志文章


    authors: Sheen VL,Dreyer EB,Macklis JD

    更新日期:1992-08-01 00:00:00

  • GPR39 receptor expression in the mouse brain.

    abstract::GPR39, an orphan G protein-coupled receptor, has been recently identified as the receptor for the bioactive peptide obestatin. Obestatin is secreted from the stomach and acts as an anti-appetite hormone. This activity is induced whether obestatin is administered intraperitoneally or intracerebroventricularly. GPR39 is...


    pub_type: 杂志文章


    authors: Jackson VR,Nothacker HP,Civelli O

    更新日期:2006-05-29 00:00:00

  • Apoptosis in metabolic myopathies.

    abstract::DNA fragmentation, the hallmark of apoptosis, has been recently investigated with contradictory results in several skeletal muscle disorders. Using in situ labeling of nuclear DNA fragmentation, we have tested the possibility that apoptosis might occur in muscles from patients with mitochondrial respiratory chain defe...


    pub_type: 杂志文章


    authors: Monici MC,Toscano A,Girlanda P,Aguennouz M,Musumeci O,Vita G

    更新日期:1998-07-13 00:00:00

  • NADPH diaphorase-positive cells in the brain after status epilepticus.

    abstract::Using NADPH-diaphorase (NADPH-d) histochemistry, the expression of nitric oxide synthase (NOS) was studied in the rat brain 1 week after kainate-induced status epilepticus. Major changes were observed in the hippocampi of epileptic animals, especially a loss of NADPH-d positive fibres in the periphery of degenerative ...


    pub_type: 杂志文章


    authors: Lerner-Natoli M,de Bock F,Bockaert J,Rondouin G

    更新日期:1994-12-20 00:00:00

  • Co-dergocrine (Hydergine) regulates striatal and hippocampal acetylcholine release through D2 receptors.

    abstract::The effect of Co-dergocrine (Hydergine) on acetylcholine (ACh) release in the striatum and hippocampus has been studied by means of brain microdialysis and compared to the effect of SKF 38393 and of LY 171555 selective D1 and D2 dopamine (DA) receptor agonists, respectively. Co-dergocrine (1 and 5 mg kg-1 i.p.) as wel...


    pub_type: 杂志文章


    authors: Imperato A,Obinu MC,Dazzi L,Carta G,Mascia MS,Casu MA,Gessa GL

    更新日期:1994-02-24 00:00:00

  • Role of receptor-interacting protein 1/receptor-interacting protein 3 in inflammation and necrosis following chronic constriction injury of the sciatic nerve.

    abstract::Nerve damage often leads to nervous system dysfunction and neuropathic pain. The serine-threonine kinases receptor-interacting protein 1 (RIP1) and 3 (RIP3) are associated with inflammation and cell necrosis. This study aimed to explore the role of RIP1 and RIP3 in sciatic nerve chronic constriction injury (CCI) in mi...


    pub_type: 杂志文章


    authors: Pu S,Li S,Xu Y,Wu J,Lv Y,Du D

    更新日期:2018-11-07 00:00:00

  • Caffeine-sensitive Ca2+ stores in carp retinal bipolar cells.

    abstract::High K+- or caffeine-induced Ca2+ signal was studied in freshly dissociated carp retinal ON-type bipolar cells using a confocal laser-scanning microscope. In response to 35 mM K+ exposure, a rise in [Ca2+]i appeared in both the terminal and soma, but was absent after removal of external Ca2+ or in the presence of 100 ...


    pub_type: 杂志文章


    authors: Wu D,Zhu PH

    更新日期:1999-12-16 00:00:00

  • Impaired brain glucose metabolism in cirrhosis without overt hepatic encephalopathy: a retrospective 18F-FDG PET/CT study.

    abstract:OBJECTIVES:There are subclinical neurologic deficits in cirrhotic patients without overt hepatic encephalopathy. We aimed to use F-fluorodeoxyglucose PET/computed tomography to explore the impaired brain glucose metabolism of subclinical hepatic encephalopathy in cirrhosis. METHODS:Thirty-seven patients with hepatitis...


    pub_type: 杂志文章


    authors: Zhang W,Ning N,Li X,Li M,Duan X,Guo Y,Dang Y,Li Y,Gao J,Ye J,Yang J

    更新日期:2019-08-07 00:00:00

  • Visuomotor adaptation during inactivation of the dentate nucleus.

    abstract::Recent experiments have suggested that the process of visuomotor adaptation depends on how a visual distortion is introduced. The cerebellum is thought to be involved in adapting to rapidly introduced visual distortions; however its role in adapting to a gradually introduced distortion is unknown. We tested adaptation...


    pub_type: 杂志文章


    authors: Robertson EM,Miall RC

    更新日期:1999-04-06 00:00:00

  • A Tau antisense oligonucleotide decreases neurone sensitivity to excitotoxic injury.

    abstract::Short-term exposure of primary cultures of cerebellar granule cells from neonatal rat brain to high concentrations of glutamate results in neuronal degeneration. We found that glutamate, before causing neuronal degeneration, induced a significant increase of Tau protein immunostaining. Time-course experiments revealed...


    pub_type: 杂志文章


    authors: Pizzi M,Valerio A,Ribola M,Spano PF,Memo M

    更新日期:1993-06-01 00:00:00

  • Are glia among the cells that express immunoreactive c-Fos in the suprachiasmatic nucleus?

    abstract::Light physiologically regulates the levels of c-Fos in the suprachiasmatic nucleus (SCN), but the identity of most of the cells that express this DNA-binding protein is unknown. To determine whether SCN c-Fos expression is restricted to neurons, we performed light microscopic double-label immunohistochemistry on secti...


    pub_type: 杂志文章


    authors: Bennett MR,Schwartz WJ

    更新日期:1994-09-08 00:00:00

  • Intracellular calcium signals in the surround of rat visual cortex lesions.

    abstract::Focal lesions of the visual cortex induce deafferentiation, excitotoxic cell death as well as functional reorganization in the surrounding tissue. The intracellular second messenger calcium is involved in a wide range of cellular responses including excitotoxicity and functional reorganization following cortical injur...


    pub_type: 杂志文章


    authors: Barmashenko G,Eysel UT,Mittmann T

    更新日期:2001-10-08 00:00:00

  • Free radical scavenger protects against inner hair cell loss after cochlear ischemia.

    abstract::We investigated the protective effects of edaravone, a free radical scavenger, against ischemic damage of inner hair cells (IHCs) in gerbils. Cochlear ischemia was induced in the animals by occluding the vertebral arteries bilaterally for 15 min. Edaravone (1 mg/kg, i.v.) or saline was administered 1 h after ischemia....


    pub_type: 杂志文章


    authors: Maetani T,Hakuba N,Taniguchi M,Hyodo J,Shimizu Y,Gyo K

    更新日期:2003-10-06 00:00:00

  • Chronic ethanol exposure reduces the expression of NCX3 in the hippocampus of male C57BL/6 mice.

    abstract::Chronic ethanol (EtOH) exposure can cause intracellular Ca overload by stimulating calcium channel receptors and trigger apoptosis of neurons. NCX3 may play a cytoprotective role in intracellular Ca excretion. In this study, the effect of EtOH on NCX3 was analyzed by observing NCX3 expression in the hippocampus of chr...


    pub_type: 杂志文章


    authors: Wang C,Wang X,Li Y,Xia Z,Liu Y,Yu H,Xu G,Wu X,Zhao R,Zhang G

    更新日期:2019-04-10 00:00:00

  • Generation and neuronal differentiation of induced pluripotent stem cells in Cdyl-/- mice.

    abstract::Chromodomain on Y-like (CDYL) is a chromodomain protein that has sequence homology to members of the enoyl CoA hydratase family. Although the chromodomain of CDYL has been implicated in chromatin remodeling during mammalian spermatogenesis, the function of the Cdyl gene remains unclear. Recently, induced pluripotent s...


    pub_type: 杂志文章


    authors: Wan L,Hu XJ,Yan SX,Chen F,Cai B,Zhang XM,Wang T,Yu XB,Xiang AP,Li WQ

    更新日期:2013-02-13 00:00:00

  • Amyloid precursor protein binding protein-1 knockdown reduces neuronal differentiation in fetal neural stem cells.

    abstract::Amyloid precursor protein binding protein-1 (APP-BP1) was first identified as an interacting protein of APP. In this study, we explored whether APP-BP1 plays a role in neuronal differentiation of fetal neural stem cells. APP-BP1 knockdown by small interfering RNA treatment was found to downregulate neuronal differenti...


    pub_type: 杂志文章


    authors: Hong BH,Ha S,Joo Y,Kim JA,Chang KA,Woo RS,Suh YH,Kim JH,Kim HS

    更新日期:2012-01-25 00:00:00

  • Synaptic plasticity dynamics in the hippocampal-prefrontal pathway in vivo.

    abstract::We examined the effect of long-term potentiation (LTP) on paired-pulse responses across varied stimulus intensities and interstimulus intervals (ISIs), at ascending synapses from the intermediate and ventral hippocampus to the medial prefrontal cortex in urethane-anesthetized rats. LTP significantly shifted the median...


    pub_type: 杂志文章


    authors: Takita M,Izaki Y,Kuramochi M,Yokoi H,Ohtomi M

    更新日期:2010-01-06 00:00:00

  • Do seizures cause neuronal damage? A MRI study in newly diagnosed and chronic epilepsy.

    abstract::It is a matter of dispute whether or not recurrent epileptic seizures cause neuronal damage in the human brain. We approached this question by measuring the volumes of the amygdala, hippocampus and parahippocampal gyrus with magnetic resonance imaging in 15 controls, 13 unmedicated patients with newly diagnosed epilep...


    pub_type: 杂志文章


    authors: Saukkonen A,Kälviäinen R,Partanen K,Vainio P,Riekkinen P,Pitkänen A

    更新日期:1994-12-30 00:00:00

  • MRI visualization of focal induced neocortical malformations of the rat.

    abstract::In an attempt to determine whether small focal malformations of the neocortex can be visualized in vivo, focal microgyria were induced in the neocortex of otherwise normal rats by freezing injury to the developing cortical plate, and in adulthood the malformation was visualized using MRI. Induced microgyria of varying...


    pub_type: 杂志文章


    authors: Rosen GD,Burstein D

    更新日期:1997-12-22 00:00:00

  • Medial temporal MR spectroscopy is related to memory performance in normal adolescent subjects.

    abstract::In addition to the study of pathological conditions, magnetic resonance spectroscopy can provide useful information about brain-behavior relationships in normal subjects. Recently, there have been reports of correlations between N-acetylaspartate (NAA) values and cognitive functions in normal adults. We tested the pos...


    pub_type: 杂志文章


    authors: Giménez M,Junqué C,Narberhaus A,Caldú X,Segarra D,Vendrell P,Bargalló N,Mercader JM

    更新日期:2004-03-22 00:00:00