abstract：:We examined the characteristics of postsynaptic potentials (PSPs) produced in antidromically-identified medical gastrocnemius (MG) alpha-motoneurons by electrical stimulation of low threshold (less than 3 x T) distal limb cutaneous afferents in the sural (SUR) nerve in adult cats anesthetized with alpha-chloralose, to...

journal_title：Experimental brain research

authors： Pinter MJ,Burke RE,O'Donovan MJ,Dum RP

更新日期：1982-01-01 00:00:00

abstract：:Six cats were reared with surgically produced squint or atropinisation of one eye during the sensitive period of development. Five cats were reared without an ocular interference but in the same environment as the experimental cats. Four of these normally reared cats provided control data for perikaryal size. When the...

journal_title：Experimental brain research

authors： Tremain KE,Ikeda H

更新日期：1982-01-01 00:00:00

abstract：:In the present study pineal glands of rats aged 69-71 days were studied in vivo and in vitro with respect to day/night changes of "synaptic" ribbons and spherules. It was found that ribbons outnumber spherules by a factor of 3. In vivo, both ribbons and spherules show a roughly 3-fold increase in number at 1 a.m. when...

journal_title：Experimental brain research

authors： Karasek M,Vollrath L

更新日期：1982-01-01 00:00:00

abstract：:The total number of granule cells in the dentate gyrus was estimated in 17 male rats, four each aged 30, 120, and 200 days, and five aged 365 days. There is a substantial 35-43% linear increase between 1 month and 1 year. Two parameters of the granular layer are involved in the numerical change. First, total granular ...

journal_title：Experimental brain research

authors： Bayer SA

更新日期：1982-01-01 00:00:00

abstract：:In order to see whether septal neurones are connected to the hypothalamic neurones secreting vasopressin or oxytocin, neurones in different regions of the septum were recorded during electrical stimulation of the supraoptic nucleus. The position of the stimulating electrode within the latter was verified using lactati...

journal_title：Experimental brain research

authors： Poulain DA,Lebrun CJ,Vincent JD

更新日期：1981-01-01 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：:Neuron activity was recorded in monkey cerebral cortex during a visually guided reaching task. Cells located in the banks of the arcuate sulcus at its curvature changed their activity during the period in which the monkey saw a food reward in a certain position, but before it moved to retrieve the reward. A role of th...

journal_title：Experimental brain research

authors： Godschalk M,Lemon RN,Nijs HG,Kuypers HG

更新日期：1981-01-01 00:00:00

abstract：:After injection of 3H dihydrotestosterone, concentration and retention of radioactivity occur in nuclei of certain neurons in the spinal cord and spinal ganglia as well as in dorsal and ventral root cells of chick embryos at day 10, 12, and 18. Cell of the glycogen body show nuclear labeling at day 12, but not at day ...

journal_title：Experimental brain research

authors： Reid FA,Gasc JM,Stumpf WE,Sar M

更新日期：1981-01-01 00:00:00

abstract：:We have monitored extracellularly individual neurons in the striate cortex of 4-week-old unparalyzed kittens with the aim of changing the ocular dominance of these cells during recording. To do this, we elicited conjugate eye movements using a bipolar stimulating electrode positioned in the internal medullary lamina (...

journal_title：Experimental brain research

authors： Tsumoto T,Freeman RD

更新日期：1981-01-01 00:00:00

abstract：:The primary auditory "cortex" field L, of the Guinea fowl is a three layer tonotopically organized structure. Isofrequency planes as shown with the 2-deoxyglucose (2DG) method cut across these layers and with their second dimension extend in rostro-caudal direction. The input layer L2 exhibits "spontaneous" labeling d...

journal_title：Experimental brain research

authors： Scheich H,Bonke BA

更新日期：1981-01-01 00:00:00

abstract：:Intracellular injection of EGTA abolished the hyperpolarization seen after spontaneous and evoked bursts of action potentials in hippocampal CA3 neurons. Simultaneously recorded, orthodromically elicited IPSPs were relatively unaffected by this treatment. It is concluded that CA3 neurons generate at least two types of...

journal_title：Experimental brain research

authors： Hablitz JJ

更新日期：1981-01-01 00:00:00

abstract：:In walking cats decerebrated at the premammillary level, single neurone activity of Purkinje cells (P-cells) with long corticofugal axons was recorded in the cerebellar vermis. The P-cells (N = 145) were identified as they showed spontaneous simple and complex spikes and also antidromic activation from Deiters' nucleu...

journal_title：Experimental brain research

authors： Udo M,Matsukawa K,Kamei H,Minoda K,Oda Y

更新日期：1981-01-01 00:00:00

abstract：:Stimulating electrodes were chronically implanted in the ventral hippocampal commissure and the entorhinal cortex or angular bundle of rats. Moveable metal microelectrodes which could be passed through the hippocampus were implanted. All hippocampal units were classified s complex-spike cells or theta cells on the bas...

journal_title：Experimental brain research

authors： Fox SE,Ranck JB Jr

更新日期：1981-01-01 00:00:00

abstract：:The distribution of S1 (first somatosensory area) and S2 (second somatosensory area) neurons projecting to the contralateral S2 was studied with horseradish peroxidase in normal adult cats and in cats aged between 129 and 248 days in which the injected S2 area had been deprived of some of its input by an earlier lesio...

journal_title：Experimental brain research

authors： Caminiti R,Innocenti GM

更新日期：1981-01-01 00:00:00

abstract：:Following an almost total chemical lesion of the inferior olive, the inhibitory control of the cerebellar Purkinje cells upon their target neurones, mainly in Deiters nucleus, remains practically unchanged. This result is at variance with some recent findings having important implications in the cerebellar theories of...

journal_title：Experimental brain research

authors： Montarolo PG,Raschi F,Strata P

更新日期：1981-01-01 00:00:00

abstract：:In our study we examined, in the rabbit, the interactions between temperature regulation and the state of increased vigilance and emotional arousal induced by a Classical Aversive Conditioning Procedure. A Delay Conditioning Procedure was used. The Conditioned Stimulus (CS) was a 1350 Hz, 85 dB tone, the Unconditioned...

journal_title：Experimental brain research

authors： Franzini C,Lenzi P,Cianci T

更新日期：1981-01-01 00:00:00

abstract：:Ganglioside and DNA levels were estimated in the striatum of rats 10 days and 6 weeks after lesioning by intrastriatal injection of kainic acid. There was a moderate, 21-24% decrease of the ganglioside concentration per unit protein on the side of the lesion, which can be ascribed to the loss of the intrinsic striatal...

journal_title：Experimental brain research

authors： Higatsberger MR,Sperk G,Bernheimer H,Shannak KS,Hornykiewicz O

更新日期：1981-01-01 00:00:00

abstract：:Single unit recording from trained rhesus monkeys demonstrate that the activity of the prelunate cortex is enhanced when a visual stimulus becomes a target of saccadic eye movement. As a rule, the enhancement is spatially selective: it does not occur if the animal makes an eye movement away from, rather than towards t...

journal_title：Experimental brain research

authors： Fischer B,Boch R

更新日期：1981-01-01 00:00:00

abstract：:Adrenocortical responses, as expressed by changes in plasma corticosterone levels, following ether stress and dorsal hippocampal stimulation, were studied in intact rats and in rats with complete, anterior of posterior hypothalamic deafferentations. Ether stress produced normal responses in all experimental groups. In...

journal_title：Experimental brain research

authors： Feldman S,Conforti N

更新日期：1981-01-01 00:00:00

abstract：:Experiments using the same glass microelectrode (6--8 M omega) for recording and stimulating were performed on 12 rats in which 379 cortical cells were studied in 65 penetrations through the motor and somatosensory cortical zones. To avoid anaesthetic effects the rats were chronically implanted with a head system deri...

journal_title：Experimental brain research

authors： Sapienza S,Talbi B,Jacquemin J,Albe-Fessard D

更新日期：1981-01-01 00:00:00

abstract：:The proportions and some of the properties of X and Y cells in lateral geniculate nucleus (LGN) of adult cats were measured 14-16 days after monocular paralysis. The paralysis was produced by sectioning cranial nerves III, IV and VI. No difference from normal was observed in the proportions of X and Y cells either in ...

journal_title：Experimental brain research

authors： Winterkorn JM,Shapley R,Kaplan E

更新日期：1981-01-01 00:00:00

abstract：:A double-labelling anatomical strategy employing horseradish peroxidase and tritiated, enzymatically inactive horseradish peroxidase allowed simultaneous visualization of corticospinal neurones and cortical neurones projecting to the dorsal column nuclei in cats. By this approach it is shown that although most cortica...

journal_title：Experimental brain research

authors： Rustioni A,Hayes NL

更新日期：1981-01-01 00:00:00

abstract：:Volume conduction measurements were carried out the brachial biceps, tibialis anterior and deltoid, in normal human subjects. Attenuation constant K and time constant tau of the muscle tissue transfer function were measured, and the average electrode uptake area calculated for the three muscles. The average number of ...

journal_title：Experimental brain research

authors： Gath I,Stålberg E

更新日期：1981-01-01 00:00:00

abstract：:Evidence is presented that simple cells in the cat striate cortex (area 17) fail to respond to two dimensional random patterns but respond vigorously to one dimensional patterns with identical power at the preferred orientation of the cell. Further observations suggest that complex cells inhibit simple cells so as to ...

journal_title：Experimental brain research

authors： Burr D,Morrone C,Maffei L

更新日期：1981-01-01 00:00:00

abstract：:Absolute refractory periods of a subpopulation of corticomedial amygdala (CMA) neurones which project to the medial preoptic/anterior hypothalamic junction (MPH) via the stria terminalis were recorded in the female rat. Previous experiments have shown that this sub-population of CMA neurones is testosterone-sensitive ...

journal_title：Experimental brain research

authors： Kendrick KM

更新日期：1981-01-01 00:00:00

abstract：:1. An intracellular study on pyramidal tract (PT) neurons in the cat's motor cortex was carried out to examine whether their antidromic activation would be able to induce plastic changes in the efficacy of the synapses situated on their membrane. 2. The experimental paradigm was based on the principles of classical co...

journal_title：Experimental brain research

authors： Baranyi A,Fehér O

更新日期：1981-01-01 00:00:00

abstract：:In cats, anaesthetized with chloralose and paralysed, the responses of units in the right lateral thalamus were recorded while the extrinsic ocular muscles (EOM) of the right eye were stretched in the dark. Phasic responses were found in all layers of the dorsal lateral geniculate nucleus (LGNd) and in the perigenicul...

journal_title：Experimental brain research

authors： Donaldson IM,Dixon RA

更新日期：1980-02-01 00:00:00

abstract：:The anatomical pathway from the prepyriform cortex to the hippocampus in the cat was traced autoradiographically by means of anterograde transport of [3H] leucine. A direct projection from the prepyriform cortex to the lateral entorhinal area was confirmed in the cat: the termination of these fibers was largely confin...

journal_title：Experimental brain research

authors： Habets AM,Lopes da Silva FH,de Quartel FW

更新日期：1980-02-01 00:00:00

abstract：:The time course of local changes of the extracellular space (ES) was investigated by measuring concentration changes of repeatedly injected tetramethylammonium (TMA+) and choline (Ch+) ions for which cell membranes are largely impermeable. After stimulus-induced extracellular [K+] elevations the delta [TMA+] and delta...

journal_title：Experimental brain research

authors： Dietzel I,Heinemann U,Hofmeier G,Lux HD

更新日期：1980-01-01 00:00:00

abstract：:Visual receptive field properties of neurons in the region of the thalamic internal medullary lamina were studied in alert cats while they fixated in various directions. In slightly more than 50% of the cells, the responsiveness of the cells was found to depend on the location of the stimulus with respect to the head-...

journal_title：Experimental brain research

authors： Schlag J,Schlag-Rey M,Peck CK,Joseph JP

更新日期：1980-01-01 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：:The present report describes a bidirectional mechanical stimulation technique of cristae ampullares in the cat. Bimodal field potentials are seen in the vestibular nerve and nucleus after an excitatory stimulus. This technique should allow an in vivo and selective study of the vestibular receptors in mammals. ...

journal_title：Experimental brain research

authors： Sans A,Dechesne C

更新日期：1980-01-01 00:00:00

abstract：:Single fibre recordings were performed from the auditory nerve of the caiman, Caiman crocodilus. All neurones were spontaneously active (1-80 imp/s). Clicks evoked multiple peaks in the post stimulus time histogram spaced at 1/CF. At high intensities irregularities were observed. The latencies of the first peak observ...

journal_title：Experimental brain research

authors： Klinke R,Pause M

更新日期：1980-01-01 00:00:00

abstract：:Electrophysiological methods were employed to study the axonal properties of the neurons of anterior olfactory nucleus (AON), transition zone (TZ), and rostral prepyriform cortex (RPPC) and their projections towards the ipsilateral and contralateral olfactory bulb (IOB, COB) in the rat. Of 91 antidromically driven cel...

journal_title：Experimental brain research

authors： Moyano HF,Molina JC

更新日期：1980-01-01 00:00:00

abstract：:Counts of callosal neurons retrogradely labeled by horseradish peroxidase (visualized using multiple substrates) were obtained in areas 17 and 18 of five kittens reared with their eyelids bilaterally sutured and of three kittens which had undergone bilateral enucleation on postnatal days 1--4. These counts were compar...

journal_title：Experimental brain research

authors： Innocenti GM,Frost DO

更新日期：1980-01-01 00:00:00

abstract：:The activity of the rat hindlimb during treadmill stepping was studied in normal adult rats and in rats in which cerebellar development was interfered with by early-postnatal focal X-irradiation. Based on cinematographic and electromyographic data from over 100 step cycles in 15 normal rats, correlations were made bet...

journal_title：Experimental brain research

authors： Gruner JA,Altman J,Spivack N

更新日期：1980-01-01 00:00:00

abstract：:The calcium content of mitochondria isolated from the Torpedo electric organ was determined by atomic absorption spectroscopy. The mitochondrial fraction was found to contain 830 ng-atom Ca/mg protein. For comparison a fraction of isolated nerve endings contained 250 ng-atom Ca/mg protein. When tissue was continuously...

journal_title：Experimental brain research

authors： Schmidt R,Zimmermann H

更新日期：1980-01-01 00:00:00

abstract：:Single neurons were recorded from the superficial layers of the superior colliculus of immobilized monkeys (Macaca mulatta and Macaca irus). Two main functional types of neurons were found. The neurons of the first type (Type I neurons) responded well to simple stationary and moving stimuli such as spots, bars or slit...

journal_title：Experimental brain research

authors： Rizzolatti G,Buchtel HA,Camarda R,Scandolara C

更新日期：1980-01-01 00:00:00

abstract：:Arm motor performance of eight Cebus monkeys was examined during reversible cooling in the ventral lateral region of the putamen and globus pallidus (primarily the external segment), where neurons discharging during arm movements have been found (DeLong 1972). When attempting to hold a handle stationary during basal g...

journal_title：Experimental brain research

authors： Hore J,Vilis T

更新日期：1980-01-01 00:00:00

abstract：:The effects of electrical stimulation of the cerebral cortex on the monosynaptic jaw closing and the disynaptic jaw opening reflexes were studied in cats anaesthetized with chloralose. The time course of the reflex effects was recorded. Similar rhythmic sequences of facilitation and inhibition were observed in both re...

journal_title：Experimental brain research

authors： Olsson KA,Landgren S

更新日期：1980-01-01 00:00:00