Action of argiotoxin636 on N-methyl-D-aspartate channels in cerebellar cells.

abstract：:Spatial neglect has been explained as an impairment in the representation of extrapersonal space. One account suggests that representations of extrapersonal space are spatially compressed following neglect. In support of this view it has been demonstrated that neglect patients systematically underestimate the size of ...

journal_title：Neuroreport

authors： Shaw A,Jackson SR,Harvey M,Newport R,Krämer T,Dow L

更新日期：1997-12-01 00:00:00

abstract：:Inconsistencies in previous attempts to localize the N2 wave in the GO/NOGO task led to the present investigation. The inconsistencies were probably because of heterogeneity of psychological operations involved in GO/NOGO tasks. We applied the independent component analysis to a collection of individual event-related ...

journal_title：Neuroreport

authors： Kropotov JD,Ponomarev VA

更新日期：2009-12-09 00:00:00

abstract：:Motor imagery paradigms can be used to investigate motor preparation. We used positron emission tomography to compare regional cerebral blood flow (rCBF) in patients with Parkinson's disease and normal controls under three conditions: rest, motor imagery and motor execution. In controls, imagery activated bilateral do...

journal_title：Neuroreport

authors： Samuel M,Ceballos-Baumann AO,Boecker H,Brooks DJ

更新日期：2001-03-26 00:00:00

abstract：:With the purpose of elucidating the functional fields involved in the discrimination of visual form based either on luminance or binocular disparity cues, we used PET to measure changes in regional cerebral blood flow (rCBF) in ten volunteers while they performed visual discrimination tasks. The averaged standardized ...

journal_title：Neuroreport

authors： Gulyás B,Roland PE,Heywood CA,Popplewell DA,Cowey A

更新日期：1994-11-21 00:00:00

abstract：:Event related potentials (ERP) were recorded from 29 electrode positions in 10 normal subjects while they performed a simplified version of the Wisconsin Card Sorting Test (WCST). The design focused on ERP differences between early and late trials within each WCST series. Topographic and dipole analyses confirmed the ...

journal_title：Neuroreport

authors： Barceló F,Rubia FJ

更新日期：1998-03-09 00:00:00

abstract：:The functions of the fields of the mammalian auditory cortex in sound perception and recognition are unknown. We used Fos (a protein of the inducible immediate-early gene c-fos) as a cellular marker of activated brain areas to show in the mouse (Mus domesticus) that sound is processed differentially in auditory cortic...

journal_title：Neuroreport

authors： Fichtel I,Ehret G

更新日期：1999-08-02 00:00:00

abstract：:We investigated the spatio-temporal brain activity on the time scale of several milliseconds related to the mental rotation task requiring judgements of hand orientation, using a whole-cortex MEG (magnetoencephalography) system. Neuronal activity in the visual cortex was observed approximately 100-200 ms from stimulus...

journal_title：Neuroreport

authors： Kawamichi H,Kikuchi Y,Endo H,Takeda T,Yoshizawa S

更新日期：1998-04-20 00:00:00

abstract：:Multiple sclerosis is associated with reduced white matter integrity and deficits in key cognitive processes important for arithmetic. This study examined the relationship between white matter microstructure and academic ability in 31 youths with multiple sclerosis (aged 11-19 years) and 34 demographically matched con...

journal_title：Neuroreport

authors： Till C,Deotto A,Tipu V,Sled JG,Bethune A,Narayanan S,Arnold DL,Banwell BL

更新日期：2011-12-21 00:00:00

abstract：:Propofol is widely used for induction and maintenance of anaesthesia, which causes a rapid loss of consciousness. So far the mechanisms underlying the effect of propofol are still largely unknown. Here, we found that microinjection of propofol in the lateral hypothalamus caused a significant decrease in wakefulness an...

journal_title：Neuroreport

authors： Shi Y,Xiao D,Dai L,Si Y,Fang Q,Wei X

更新日期：2019-10-09 00:00:00

abstract：:Depression is present in a large proportion of patients suffering from chronic pain, and yet the underlying mechanisms remain to be elucidated. Neuroligins (NLs), as a family of cell-adhesion proteins, are involved in synaptic formation and have been linked to various neuropsychiatric disorders. Here, we studied the a...

journal_title：Neuroreport

authors： Pan W,Zhang GF,Li HH,Ji MH,Zhou ZQ,Li KY,Yang JJ

更新日期：2018-07-04 00:00:00

abstract：:Experience affects how brains respond to sound. Here, we examined how the sensitivity and selectivity of auditory cortical neuronal responses were affected in adult rats by the repeated presentation of a complex sound that was paired with basal forebrain stimulation. The auditory cortical region that was responsive to...

journal_title：Neuroreport

authors： Mercado E,Bao S,Orduña I,Gluck MA,Merzenich MM

更新日期：2001-07-20 00:00:00

abstract：:The amount of backward walking induced in mice by co-administration of clenbuterol, a beta-adrenoceptor agonist and putative antidepressant, and the benzodiazepine chlordiazepoxide was plotted as a three-dimensional surface, using modified Uniras software. The surface was compared with the theoretical surface to be ex...

journal_title：Neuroreport

authors： Hughes MJ,Sykes EA,Steinberg H

更新日期：1992-07-01 00:00:00

abstract：:The neural foundation of age-related declines in prospective memory was explored using event-related brain potentials (ERPs). Consistent with previous research, a decline in the efficiency of prospective memory was observed in older adults that reflected a decrease in veridical prospective responses and an increase in...

journal_title：Neuroreport

authors： West R,Covell E

更新日期：2001-09-17 00:00:00

abstract：:Levels of mRNAs encoding for the two isoforms of glutamate decarboxylase, GAD67 and GAD65, were quantified in the rat striatum and cerebral cortex following single injections of the non-competitive NMDA receptor antagonist MK-801. Acute MK-801 induced a dose-dependent decrease in GAD65 mRNA levels in ventral sectors o...

journal_title：Neuroreport

authors： Laprade N,Soghomonian JJ

更新日期：1995-10-02 00:00:00

abstract：:Previous studies in adult rats have demonstrated that the neurotrophin, brain-derived neurotrophic factor (BDNF), is present in virtually all cells of the pituitary intermediate lobe. In the present study, we demonstrate that cells cultured from adult intermediate lobe pituitary (ILP) rapidly lose their BDNF immunorea...

journal_title：Neuroreport

authors： Höpker VH,Kjaer B,Varon S

更新日期：1997-03-24 00:00:00

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...

journal_title：Neuroreport

authors： Harada M,Fuse A,Tanaka Y

更新日期：1997-03-03 00:00:00

abstract：:Myelinated nerve fibers exhibit a complex anatomy in the nodal region which includes a marked nodal-paranodal constriction and an intricate paranodal structure where the myelin sheath is separated from the axon by a narrow periaxonal space. In this study, a recently developed computational model of the mammalian myeli...

journal_title：Neuroreport

authors： Halter JA,Clark JW Jr

更新日期：1993-01-01 00:00:00

abstract：:24S-hydroxycholesterol, the primary oxidation product of cholesterol in the brain, plays a key role in cholesterol elimination and homeostasis. While the concentration of this neurotoxic oxysterol decreases with age, 24S-hydroxycholesterol is elevated in Alzheimer's disease. In this study, we examined the effects of 2...

journal_title：Neuroreport

authors： Alexandrov P,Cui JG,Zhao Y,Lukiw WJ

更新日期：2005-06-21 00:00:00

abstract：:Although decision-making is typically seen as a rational process, emotions play a role in tasks that include unfairness. Recently, activation in the right dorsolateral prefrontal cortex during offers experienced as unfair in the Ultimatum Game was suggested to subserve goal maintenance in this task. This is restricted...

journal_title：Neuroreport

authors： van 't Wout M,Kahn RS,Sanfey AG,Aleman A

更新日期：2005-11-07 00:00:00

abstract：:The present study reveals the presence of a distinct group of cells, resembling reticular thalamic neurones, in the internal capsule during fetal development. This cell population rapidly decreases in size during early infancy and few cells are apparent in the 1-year-old infant. Internal capsule cells are well differe...

journal_title：Neuroreport

authors： Letinić K,Kostović I

更新日期：1996-09-02 00:00:00

abstract：:To investigate the implications of duration of deafness in the rehabilitation of unilateral deafness utilizing cochlear implantation. From the ongoing prospective cochlear implantation in unilateral deafness study, we looked at five adults who received a cochlear implant for long-term unilateral deafness. Speech perce...

journal_title：Neuroreport

authors： Távora-Vieira D,Boisvert I,McMahon CM,Maric V,Rajan GP

更新日期：2013-09-11 00:00:00

abstract：:Glial cell-line neurotrophic factor (GDNF), a neurotrophic factor with heparin binding affinity, promotes the survival and differentiation of a variety of neuronal cells including dopaminergic neuron. The effect of heparin on GDNF signaling was investigated based on the expression of the tyrosine hydroxyrase (TH) gene...

journal_title：Neuroreport

authors： Tanaka M,Xiao H,Kiuchi K

更新日期：2002-10-28 00:00:00

abstract：:We obtained visual response latencies and response durations following visual stimulation of neurones recorded in the lateral geniculate nucleus (LGN), areas 17, 18, 19, the posteromedial lateral suprasylvian sulcus (PMLS), and area 7 of the cat. We found an increasing lengthening of the mean response latencies, consi...

journal_title：Neuroreport

authors： Dinse HR,Krüger K

更新日期：1994-04-14 00:00:00

abstract：:Lesions involving the dorsolateral prefrontal lobes may produce deficits on conceptual reasoning (CR) tasks in humans. Such deficits can also occur with subcortical lesions involving the basal ganglia, thalamus, or cerebellum, suggesting a common, yet widespread, neural network supporting this executive function. Here...

journal_title：Neuroreport

authors： Rao SM,Bobholz JA,Hammeke TA,Rosen AC,Woodley SJ,Cunningham JM,Cox RW,Stein EA,Binder JR

更新日期：1997-05-27 00:00:00

abstract：:To determine whether EEG synchronization in sleep has a metabolic equivalent, we investigated state-dependent changes in extracellular concentrations of amino acids. In vivo microdialysis studies were performed in the ventroposterolateral (VPL) nuclei of the thalamus of cats during natural slow wave sleep (SWS), wakin...

journal_title：Neuroreport

authors： Kékesi KA,Dobolyi A,Salfay O,Nyitrai G,Juhász G

更新日期：1997-03-24 00:00:00

abstract：:To investigate the possibility that insulin-stimulated glucose uptake in C6 cells is due to transactivation of a G protein-mediated pathway, the role of Gq alpha in insulin signaling was studied. Insulin stimulation of [3H]2-deoxy-D-glucose (2DG) uptake by C6 cells was time- and concentration-dependent: at a concentra...

journal_title：Neuroreport

authors： Singh SP,Gao Y,Kunapuli SP,Ravindra R

更新日期：1997-07-07 00:00:00

abstract：:Poly(ADP-ribose) polymerase-1 consumes NAD to catalyze poly(ADP-ribosyl)ation of target proteins, which modulates various biological functions. However, excessive poly(ADP-ribose) polymerase-1 activation mediates oxidative cell death. Our recent studies have indicated that NAD can enter into astrocytes to prevent poly...

journal_title：Neuroreport

authors： Zhu K,Swanson RA,Ying W

更新日期：2005-08-01 00:00:00

abstract：:According to the previous research, metformin, a medication utilized for type 2 diabetes management, inhibits neural aging and reduces infarct size by enhancing angiogenesis in a mouse stroke model. What is more, metformin administration also promotes neural precursor cells proliferation, migration, as well as differe...

journal_title：Neuroreport

authors： Yuan R,Wang Y,Li Q,Zhen F,Li X,Lai Q,Hu P,Wang X,Zhu Y,Fan H,Yao R

更新日期：2019-02-06 00:00:00

abstract：:In a previous publication we showed that non-linear analysis can extract spatio-temporal changes of brain electrical activity prior to epileptic seizures. Here we describe a new method to analyze this long-term non-stationarity in the EEG by a measure of dynamical similarity between different parts of the time series....

journal_title：Neuroreport

authors： Le Van Quyen M,Martinerie J,Baulac M,Varela F

更新日期：1999-07-13 00:00:00

abstract：:Neuroblastoma is an important problem in children. Long noncoding RNAs (lncRNAs) exhibit important roles in tumorigenicity of neuroblastoma. However, the role and mechanism of lncRNA small nucleolar RNA host gene 16 (SNHG16) in neuroblastoma tumorigenicity remain poorly understood. Forty-six neuroblastoma samples and ...

journal_title：Neuroreport

authors： Ge Y,Tan S,Bi J,Rao M,Yu Y,Tian L

更新日期：2020-12-09 00:00:00