Luminance and chromatic contrast sensitivity in dyslexia: the magnocellular deficit hypothesis revisited.

abstract：:A lexical decision experiment was conducted while event related potentials (ERPs) were recorded. The word frequency and the first syllable frequency of each word were manipulated. Results showed that, while high frequency words produced less negative amplitudes in the N400 time window than low frequency words, the inv...

journal_title：Neuroreport

authors： Barber H,Vergara M,Carreiras M

更新日期：2004-03-01 00:00:00

abstract：:The taste reactivity test was used to evaluate the ability of motion sickness to produce conditioned rejection reactions, a putative measure of nausea in rats. Following three conditioning trials, rats displayed conditioned rejection reactions during an intraoral infusion of a rotation-paired saccharin solution. This ...

journal_title：Neuroreport

authors： Cordick N,Parker LA,Ossenkopp KP

更新日期：1999-05-14 00:00:00

abstract：:The present investigation provide evidences from a non-human primate model that naturally occurring menopause predicts a prominent signature of age-related cognitive decline. Young and aged rhesus monkeys were tested on a delayed response (DR) task known to the sensitive to aging, and reproductive status was evaluated...

journal_title：Neuroreport

authors： Roberts JA,Gilardi KV,Lasley B,Rapp PR

更新日期：1997-05-27 00:00:00

abstract：:GABAA receptor-independent effects of benzodiazepine receptor (BZ-R) agonists on calcium and barium spikes were recorded intracellularly in the presence of bicuculline from CA3 hippocampal cells of young and adult rats. Zolpidem (omega 1 BZ-R agonist), had no effects in young animals but decreased calcium and barium s...

journal_title：Neuroreport

authors： Rovira C,Ben-Ari Y

更新日期：1994-10-27 00:00:00

abstract：:The present study examined in urethane-chloralose anaesthetized rats whether N-methyl-D-aspartate (NMDA) is involved in the depressant effect of flupirtine on the monosynaptic Hoffmann (H)-reflex recorded from plantar foot muscles and on polysynaptic flexor reflexes recorded from tibialis muscle. Intrathecal administr...

journal_title：Neuroreport

authors： Schwarz M,Block F,Pergande G

更新日期：1994-10-03 00:00:00

abstract：:The death of spinal motoneurones after axotomy provides a useful model for studying novel factors which prevent motoneurone loss in vivo. Peripheral nerves of newborn rats were unilaterally transected and treated with either a vehicle solution or leukaemia inhibitory factor (LIF). Compared with the vehicle controls, t...

journal_title：Neuroreport

authors： Cheema SS,Richards LJ,Murphy M,Bartlett PF

更新日期：1994-04-14 00:00:00

abstract：:The effects of C-type natriuretic peptide (CNP) on the hypothalamo-pituitary-adrenal system response to different stressors was studied. Various doses of CNP (0.2, 2, 4 microg) were injected into the lateral cerebral ventricle of freely moving rats 30 min before stress and activation of the adrenal was measured by pla...

journal_title：Neuroreport

authors： Jászberényi M,Bujdosó E,Telegdy G

更新日期：1998-08-03 00:00:00

abstract：:Mammals react to acute hypoxia with an initial augmentation and a secondary depression of the respiratory rhythm generated by brain stem neuronal networks. To investigate the cytosolic level of energy rich phosphorus metabolites during these responses, we developed 31P nuclear magnetic resonance spectroscopy of the br...

journal_title：Neuroreport

authors： Piérard C,Champagnat J,Denavit-Saubie M,Gillet B,Beloeil JC,Guezennec CY,Barrère B,Pérès M

更新日期：1995-12-29 00:00:00

abstract：:We investigated the correlation of hippocampal volume with homocysteine, folate, vitamin B12 and B6 in alcoholic patients and healthy controls applying a Kohonen feature map (KFM) and conventional statistics. Representation of subjects on the KFM suggested an inverse correlation of hippocampal volume with blood levels...

journal_title：Neuroreport

authors： Kurth C,Wegerer V,Reulbach U,Lewczuk P,Kornhuber J,Steinhoff BJ,Bleich S

更新日期：2004-02-09 00:00:00

abstract：:We investigated the influence of gravity on the maturation of electrical properties of lumbar motoneurons and the development of their inputs from ventral descending pathways, which are important for the control of posture and locomotion. Using electrophysiological approaches in the in vitro brain stem-spinal cord pre...

journal_title：Neuroreport

authors： Brocard F,Clarac F,Vinay L

更新日期：2003-09-15 00:00:00

abstract：:High homocysteine serum level has been regarded as one of the important factors that influence the development of schizophrenia. Genetic variations of methylenetetrahydrofolate reductase, which is a main enzyme reducing homocysteine level, are reported in schizophrenic patients. We measured the serum level of homocyst...

journal_title：Neuroreport

authors： Lee YS,Han DH,Jeon CM,Lyoo IK,Na C,Chae SL,Cho SC

更新日期：2006-05-15 00:00:00

abstract：:The aim was to study whether there is indication of a dissociation in processing of visuospatial and colour information in working memory in humans. Experimental subjects performed visuospatial and colour n-back tasks with and without visuospatial and colour distractive stimuli presented in the middle of the delay per...

journal_title：Neuroreport

authors： Vuontela V,Rämä P,Raninen A,Aronen HJ,Carlson S

更新日期：1999-08-02 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：:Protease-activated receptor-2 (PAR-2), a member of the G protein-coupled, seven trans-membrane domain receptor family, is activated by trypsin/tryptase and present in various tissues including the primary sensory neurons, playing a role in development of neurogenic inflammation. The present study examined if activatio...

journal_title：Neuroreport

authors： Kawabata A,Kawao N,Kuroda R,Tanaka A,Itoh H,Nishikawa H

更新日期：2001-03-26 00:00:00

abstract：:In acute experiments, the effects of i.p. 17beta-estradiol on the activity of arcuate neurons were studied in ovariectomized rats. 17Beta-estradiol (100 microg/100g, i.p.) increased the spontaneous activity of the observed arcuate neurons with a latency of 20-25 min. In some neurons spontaneous activity could be influ...

journal_title：Neuroreport

authors： Kis Z,Horváth S,Hoyk Z,Toldi J,Párducz A

更新日期：1999-11-26 00:00:00

abstract：:Target detection is the process of bringing a salient stimulus into conscious awareness. Target detection evokes a prominent event-related potential (ERP) component (P3) in the electroencephalogram (EEG). We combined the high spatial resolution of functional magnetic resonance imaging (fMRI) with the high temporal res...

journal_title：Neuroreport

authors： Menon V,Ford JM,Lim KO,Glover GH,Pfefferbaum A

更新日期：1997-09-29 00:00:00

abstract：:The octave illusion is experienced when two simultaneous tones, separated by one octave and presented to the opposite ears, are continuously reversed between the two ears. Subjects consistently report a sequence of alternating single tones: the high tone in the right ear and the low in the left. We wished to determine...

journal_title：Neuroreport

authors： Ross J,Tervaniemi M,Näätänen R

更新日期：1996-12-20 00:00:00

abstract：:High concentrations of local anesthetics are neurotoxic, but the mechanism for this neurotoxicity is obscure. Here, we report increased concentrations of glutamate in the cerebrospinal fluid after intrathecal injections of high concentrations of tetracaine (a local anesthetic). The peak concentrations of glutamate aft...

journal_title：Neuroreport

authors： Ohtake K,Matsumoto M,Wakamatsu H,Kawai K,Nakakimura K,Sakabe T

更新日期：2000-04-07 00:00:00

abstract：:Transcription factors have been used as neuronal markers in the nucleus accumbens (ACB) of male juvenile spontaneously hypertensive rats (SHR), an animal model of attention-deficit hyperactivity disorder (ADHD), to trace putative neural substrates. In SHR, immunocytochemistry and PC-assisted image analysis showed lowe...

journal_title：Neuroreport

authors： Papa M,Sergeant JA,Sadile AG

更新日期：1997-05-06 00:00:00

abstract：:BALB/c mice were trained in a partial acquisition session of an appetitive bar-pressing task. They then received an immediate post-acquisition i.p. injection of either saline or apamin 0.2 mg kg-1. Each group was submitted to a retention test that was delayed either 25, 85 or 180 min after initial acquisition. In sali...

journal_title：Neuroreport

authors： Belcadi-Abbassi W,Destrade C

更新日期：1995-06-19 00:00:00

abstract：:Apolipoprotein E (apoE) and the beta-amyloid peptide are both found in the senile plaques associated with Alzheimer's disease. Several studies have recently determined that apoE can prevent beta-amyloid fibril (Abetaf) formation in vitro. In vivo, apoE is normally associated with a lipid source. We show that both reco...

journal_title：Neuroreport

authors： Beffert U,Poirier J

更新日期：1998-10-05 00:00:00

abstract：:Thyroid hormones, which play an important role in the development and regeneration of the nervous system, require the presence of specific nuclear T3 receptors (NT3R). In this study we provide evidence that NT3R expression by Schwann cells was up-regulated in response to a loss of axonal contact in vitro and in vivo. ...

journal_title：Neuroreport

authors： Walter IB

更新日期：1993-11-18 00:00:00

abstract：:Olfactory cues can elicit intense emotional responses. This study used fMRI in male common marmoset monkeys to identify brain areas associated with sexual arousal in response to odors of ovulating female monkeys. Under light anesthesia, monkeys were secured in a specially designed restrainer and positioned in a 9.4 T ...

journal_title：Neuroreport

authors： Ferris CF,Snowdon CT,King JA,Duong TQ,Ziegler TE,Ugurbil K,Ludwig R,Schultz-Darken NJ,Wu Z,Olson DP,Sullivan JM Jr,Tannenbaum PL,Vaughan JT

更新日期：2001-07-20 00:00:00

abstract：:We compared beta-amyloid peptide (Abeta) levels in the serum, CSF and brain (hippocampus) and correlated these with spatial learning in APP+PS1 transgenic mice. Compared with non-transgenic littermates, male 14-month-old APP + PS1 mice were impaired in spatial learning in the water maze. Among the APP + PS1 mice, only...

journal_title：Neuroreport

authors： Liu L,Tapiola T,Herukka SK,Heikkilä M,Tanila H

更新日期：2003-01-20 00:00:00

abstract：:The neurotrophin-inducible gene VGF plays an important role in the maintenance of organismal energy balance and in the mediation of hippocampal synaptic activity. The regulatory mechanism of VGF transcription is not fully understood. The neuron-restrictive silencer factor (NRSF) binds with the neuron-restrictive silen...

journal_title：Neuroreport

authors： Moon SM,Kim JS,Park BR,Kim DK,Kim SG,Kim HJ,Chun HS,Lee BK,Kim CS

更新日期：2015-02-11 00:00:00

abstract：:Microglia are activated by amyloid beta (Abeta) in vivo and in vitro, and Abeta-activated microglia may be involved in the pathogenesis of Alzheimer's disease (AD). We investigated the mechanism of microglial chemotaxis induced by Abeta (25-35), an active fragment of Abeta. Abeta (25-35) 0.1 and 1 nM stimulated microg...

journal_title：Neuroreport

authors： Nakai M,Hojo K,Taniguchi T,Terashima A,Kawamata T,Hashimoto T,Maeda K,Tanaka C

更新日期：1998-10-26 00:00:00

abstract：:The aim of the study was to investigate differences in the distribution of intranasal trigeminal receptors in humans using an electrophysiological measure of trigeminally induced activation, the negative mucosa potential. A total of 29 young, healthy volunteers participated, results were on the basis of data from 18 p...

journal_title：Neuroreport

authors： Scheibe M,Zahnert T,Hummel T

更新日期：2006-09-18 00:00:00

abstract：:Formalin fixation reduces beta-amyloid precursor protein (beta APP) immunoreactivity which restricts its study in archival tissue. Formic acid pretreatment has previously been used in an attempt to overcome this problem, but makes the sections very friable. In the present study, a microwave antigen retrieval method ha...

journal_title：Neuroreport

authors： Sherriff FE,Bridges LR,Jackson P

更新日期：1994-05-09 00:00:00

abstract：:Low, nonsedative doses of γ-hydroxybutyric acid (GHB) produce short-term anterograde amnesia in humans and memory impairments in experimental animals. We have previously shown that acute systemic treatment of GHB in adolescent female rats impairs the acquisition, but not the expression, of contextual fear memory while...

journal_title：Neuroreport

authors： Ishiwari K,Sircar R

更新日期：2016-06-15 00:00:00

abstract：:An entry of Ca2+ into postsynaptic sites may play a role in the induction of long-term potentiation (LTP) of synaptic transmission in the visual cortex. To test this hypothesis, a Ca(2+)-chelator was injected into layer II/III neurons of sliced visual cortex obtained from young rats, and excitatory postsynaptic potent...

journal_title：Neuroreport

authors： Kimura F,Tsumoto T,Nishigori A,Yoshimura Y

更新日期：1990-09-01 00:00:00