Response properties of neurons in area 17 projecting to the striate-recipient zone of the cat's lateralis posterior-pulvinar complex: comparison with cortico-tectal cells.

abstract：:Norepinephrine has been hypothesized to provide a learning and memory signal. Norepinephrine long-term potentiation of perforant path input to the dentate gyrus of the hippocampus provides a model for norepinephrine initiated memory processes. However, in vitro, the pairing of perforant path stimulation and norepineph...

journal_title：Experimental brain research

authors： Reid AT,Harley CW

更新日期：2010-01-01 00:00:00

abstract：:Groups of pregnant rats were injected with two successive daily doses of 3H-thymidine from gestational day 12 and 13 (E12+13) until the day before parturition (E21+22) in order to label in their embryos the proliferating precursors of neurons. At 60 days of age the proportion of neurons generated (or no longer labelle...

journal_title：Experimental brain research

authors： Altman J,Bayer SA

更新日期：1981-01-01 00:00:00

abstract：:The contribution of different cortical regions to visuospatial attention can be probed with the help of perturbation techniques, such as transcranial magnetic stimulation (TMS). Repetitive TMS (rTMS) has also been suggested as a tool for the therapy of brain injuries, by adjusting the neural excitability of injured or...

journal_title：Experimental brain research

authors： Jin Y,Hilgetag CC

更新日期：2008-07-01 00:00:00

abstract：:The visual responses of postarcuate neurons have been studied in alert behaving monkeys (Macaca nemestrina). In particular, the effect of eye position on the location of visual responses in respect to the body has been examined. It was found that a large percentage of bimodal (visual and somatosensory) neurons have vi...

journal_title：Experimental brain research

authors： Gentilucci M,Scandolara C,Pigarev IN,Rizzolatti G

更新日期：1983-01-01 00:00:00

abstract：:The two long toe flexor muscles in the cat, flexor digitorum longus (FDL) and flexor hallucis longus (FHL), have essentially identical mechanical actions, yet are used very differently during locomotion (O'Donovan et al. 1982). We attempted to identify the origin of the synaptic drive responsible for this functional d...

journal_title：Experimental brain research

authors： Fleshman JW,Lev-Tov A,Burke RE

更新日期：1984-01-01 00:00:00

abstract：:The latency of eye movements is influenced by the fixation task; when the fixation stimulus is switched off before the target presentation (gap paradigm) the latency becomes short and express movements occur. In contrast, when the fixation stimulus remains on when the target appears (overlap paradigm), eye movement la...

journal_title：Experimental brain research

authors： Bucci MP,Pouvreau N,Yang Q,Kapoula Z

更新日期：2005-07-01 00:00:00

abstract：:Evidence suggests that there are positive effects of exercise on learning and memory. Moreover, some studies have demonstrated that forced exercise plays the role of a stressor. This study was aimed at investigating the effects of different timing of exercise and exercise withdrawal on memory, and serum and hippocampa...

journal_title：Experimental brain research

authors： Radahmadi M,Alaei H,Sharifi MR,Hosseini N

更新日期：2015-10-01 00:00:00

abstract：:The responses of 80 amygdaloid neurons to the four basic taste (sucrose, NaCl, HCl and quinine hydrochloride), thermal (5 degrees C, 20 degrees C and 40 degrees C) and tactile (brushing) stimuli applied to the anterior part of the tongue were recorded in anesthetized rats. About 90% of the taste-sensitive amygdaloid n...

journal_title：Experimental brain research

authors： Azuma S,Yamamoto T,Kawamura Y

更新日期：1984-01-01 00:00:00

abstract：:The time course of 72-kDa heat-shock protein (hsp72) induction was evaluated by immunoblotting in cerebral cortex, striatum, hippocampus, cerebellum, liver, and kidney of rats subjected to 60-min focal cerebral ischemia following proximal unilateral occlusion of the right middle cerebral artery (MCA). Neurological exa...

journal_title：Experimental brain research

authors： Fredduzzi S,Mariucci G,Tantucci M,Ambrosini MV

更新日期：2001-01-01 00:00:00

abstract：:By measuring the forces applied by each limb supporting the weight of the standing quadruped (cat), before and during elicitation of the placing reaction, it was possible to examine quantitatively and qualitatively the postural events which preceded and accompanied forelimb displacement. The findings are summarized as...

journal_title：Experimental brain research

authors： Coulmance M,Gahéry Y,Massion J,Swett JE

更新日期：1979-10-01 00:00:00

abstract：:The blood-brain barrier (BBB) arises from epithelial-like tight junctions that virtually cement adjoining capillary endothelium together in the brain microvasculature. Several experimental manipulations have been shown able to increase the permeability of brain capillaries, by altering endothelial cell membrane integr...

journal_title：Experimental brain research

authors： Saija A,Princi P,Trombetta D,Lanza M,De Pasquale A

更新日期：1997-07-01 00:00:00

abstract：:The action of delta-aminovaleric acid (AVA) on the muscle relaxant properties of baclofen, a GABAB receptor agonist, was investigated in two experimental models: (1) the pathologically increased muscle tone of the gastrocnemius muscle in spastic mutant Han-Wistar rats and (2) the Hoffmann (H)-reflex recorded from plan...

journal_title：Experimental brain research

authors： Schwarz M,Klockgether T,Wüllner U,Turski L,Sontag KH

更新日期：1988-01-01 00:00:00

abstract：:Internal models are sensory motor mappings used by the nervous system to anticipate the force requirements of movement tasks. The ability to use internal models likely underlies the development of skillful control of the arm throughout life. It is currently unknown to what extent individuals with hemiparetic stroke ca...

journal_title：Experimental brain research

authors： Takahashi CD,Reinkensmeyer DJ

更新日期：2003-03-01 00:00:00

abstract：:Depending on individual lesion location and extent, reorganization of the human motor system has been observed with a high interindividual variability. In addition, variability of forces exerted, of motor effort, and of movement strategies complicates the interpretation of functional imaging studies. We hypothesize th...

journal_title：Experimental brain research

authors： Konrad C,Henningsen H,Bremer J,Mock B,Deppe M,Buchinger C,Turski P,Knecht S,Brooks B

更新日期：2002-03-01 00:00:00

abstract：:Many previous studies have demonstrated the existence of neurons with tremor-frequency activity ("tremor cells") in the thalamus of Parkinson's disease (PD) patients and these neurons are presumed to play a role in the pathogenesis of tremor. Since a major input to motor thalamus (Voa and Vop) is from the internal seg...

journal_title：Experimental brain research

authors： Hutchison WD,Lozano AM,Tasker RR,Lang AE,Dostrovsky JO

更新日期：1997-03-01 00:00:00

abstract：:Extracellular Ca2+ activity (aCa) changes were measured with Ca2+-sensitive microelectrodes in the cat cerebral cortex during iontophoretic administration of excitatory and inhibitory aminoacids. Glutamate, aspartate and DL homcysteate usually decreased aCa from a baseline of 1.3 mM to as low as 0.1 mM. The amplitude ...

journal_title：Experimental brain research

authors： Heinemann U,Pumain R

更新日期：1980-01-01 00:00:00

abstract：:It has previously been shown that light contact with the finger tip on a fixed surface reduces centre of pressure (CoP) fluctuations in the frontal plane when standing in an unstable posture with the feet in line (tandem Romberg stance). Positive cross-correlations between horizontal finger forces and CoP fluctuations...

journal_title：Experimental brain research

authors： Clapp S,Wing AM

更新日期：1999-04-01 00:00:00

abstract：:In the present study the neurotoxic effects of a low dosage (0.5 mg/kg per day) of methylmercury (MeHg) on the developing nervous system were investigated. Pregnant rats were treated with MeHg from day 7 of pregnancy to day 7 of lactation. Locomotor activity (locomotion, rearing, and motility) and spatial learning abi...

journal_title：Experimental brain research

authors： Rossi AD,Ahlbom E,Ogren SO,Nicotera P,Ceccatelli S

更新日期：1997-12-01 00:00:00

abstract：:Fast cyclic movements and discrete motor acts are controlled differently, presumably because fast cyclic tasks are more automated, thereby depending on different circuits. If fast cyclic movements are made less predictable (e.g., by mixing frequencies), one would predict that their control will be less automated, requ...

journal_title：Experimental brain research

authors： Koenraadt KL,Duysens J,Meddeler BM,Keijsers NL

更新日期：2013-11-01 00:00:00

abstract：:EMG responses, vertical and A-P shear forces and kinematics of "automatic postural responses" to unexpected translational perturbations in the headward and tailward directions were studied in cats. Muscles acting on the major joints of the forelimbs and hindlimbs were studied. Movement of the animals in response to pe...

journal_title：Experimental brain research

authors： Rushmer DS,Russell CJ,macpherson J,Phillips JO,Dunbar DC

更新日期：1983-01-01 00:00:00

abstract：:The aim of this study was to examine effects of different types of task constraints on coupling of perception and action in people with chronic stroke when crossing obstacles during a walking task. Ten participants with hemiplegic chronic stroke volunteered to walk over a static obstacle under two distinct task constr...

journal_title：Experimental brain research

authors： Shafizadeh M,Wheat J,Davids K,Ansari NN,Ali A,Garmabi S

更新日期：2017-06-01 00:00:00

abstract：:The primary objective of this study was to explore why preischemic hypoglycemia, which restricts tissue acidosis during the ischemic insult, does not ameliorate cell damage incurred as a result of transient ischemia. The question arose whether hypoglycemia (plasma glucose concentration 2-3 mM) delays resumption of ext...

journal_title：Experimental brain research

authors： Li PA,Kristián T,Katsura K,Shamloo M,Siesjö BK

更新日期：1995-01-01 00:00:00

abstract：:Quick detection of changes in the sensory environment is very important for survival, resulting in automatic shifts of attention to the event and the facilitation of subsequent processes to execute appropriate behaviors. The abrupt onset or offset of a sensory stimulus should also activate the neural network detecting...

journal_title：Experimental brain research

authors： Yamashiro K,Inui K,Otsuru N,Kida T,Akatsuka K,Kakigi R

更新日期：2008-09-01 00:00:00

abstract：:Antisaccades have not only longer latencies but also lower peak velocities than prosaccades. It is not known whether these latency and velocity differences are related. Studies of non-human primates suggest that prosaccade peak velocity declines as latency from target appearance increases. We examined whether a simila...

journal_title：Experimental brain research

authors： Ramchandran RS,Manoach DS,Cherkasova MV,Lindgren KA,Goff DC,Barton JJ

更新日期：2004-11-01 00:00:00

abstract：:Single unit recordings were carried out in the reticularis thalamic nucleus (RT) and the ventral lateral geniculate body (LGv) of chronically prepared alert cats under sinusoidal vestibular stimulation in the horizontal plane. Optokinetic stimulation was also used. Of the 57 recorded neurons, 12 present vestibular mod...

journal_title：Experimental brain research

authors： Magnin M,Putkonen PT

更新日期：1978-05-12 00:00:00

abstract：:The saccadic system has been traditionally regarded as two-dimensional (horizontal, vertical) and basically conjugate in the two eyes. However, saccades to disparate targets (e.g., targets in real three-dimensional space that are located in different directions and at different distances) are naturally disconjugate. W...

journal_title：Experimental brain research

authors： Kapoula Z,Bucci MP,Lavigne-Tomps F,Zamfirescu F

更新日期：1998-10-01 00:00:00

abstract：:Intracellular recording techniques were used to test for cross-modality and topographic convergence among inputs to area 3a of cerebral cortex. Recordings were made within the projection area of group I afferent fibers of the deep radial nerve in barbiturate-anesthetized cats. Epsps were evoked in 90% of neurons (81/9...

journal_title：Experimental brain research

authors： Kang R,Herman D,MacGillis M,Zarzecki P

更新日期：1985-01-01 00:00:00

abstract：:The muscle activation patterns in anterior and posterior leg muscles were investigated with two types of perturbations to standing balance. Subjects stood with each foot on adjacent force platforms and performed arm flexion movements to shoulder height. Nine subjects performed ten repetitions unilaterally and bilatera...

journal_title：Experimental brain research

authors： Mochizuki G,Ivanova TD,Garland SJ

更新日期：2004-04-01 00:00:00

abstract：:Could task performance be constrained by our ability to fully engage necessary neural processing through effort of will? The StartReact phenomenon suggests that this might be the case, as voluntary reaction times are substantially reduced by loud sounds. Here, we show that loud auditory stimulation can also be associa...

journal_title：Experimental brain research

authors： Anzak A,Tan H,Pogosyan A,Brown P

更新日期：2011-01-01 00:00:00

abstract：:Saccadic latencies measured in response to a step-wise displacement of the target may be substantially reduced if a gap separates the offset of the initial fixation point and the onset of the peripheral target. According to Fischer and Ramsperger (1984) this paradigm provokes a bimodal latency distribution which consi...

journal_title：Experimental brain research

authors： Jüttner M,Wolf W

更新日期：1992-01-01 00:00:00