Listar GI-NEURO - Artigos por data de publicación
Mostrando ítems 1-20 de 165
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Does the Pulvinar-Lp Complex Contribute to Motor Programming?
(Elsevier, 1989)[Abstract] Extracellular unit recording studies in the pulvinar lateral posterior complex (Pui-LP) of behaving monkeys have shown a response property not previously reported. In monkeys performing aimed arm reaching movements ... -
The role of nitric oxide in the transformation of visual information within the dorsal lateral geniculate nucleus of the cat
(Elsevier, 1994)[Abstract] We have shown that application of an inhibitor of the enzyme nitric oxide synthase (NOS) effectively suppresses the visual responses of relay cells in the dorsal lateral geniculate nucleus (dLGN) of the anaesthetized ... -
Coupled slow and delta oscillations between cuneothalamic and thalamocortical neurons in the chloralose anesthetized cat
(Elsevier, 1996)[Abstract] Simultaneous recordings were obtained from cuneothalamic (extracellular) and thalamocortical (intracellular) cells in chloralose anesthetized cats. It was found that cuneothalamic neurons present slow rhythmicity ... -
Coupled slow and delta oscillations between cuneothalamic and thalamocortical neurons in the chloralose anesthetized cat
(Elsevier, 1996)Simultaneous recordings were obtained from cuneothalamic (extracellular) and thalamocortical (intracellular) cells in chloralose anesthetized cats. It was found that cuneothalamic neurons present slow rhythmicity (0.1–1 ... -
Further observations on the role of nitric oxide in the feline lateral geniculate nucleus
(Wiley, 1996-01)[Abstract] We have examined the responses of a population of 77 cells in the dorsal lateral geniculate nucleus (dLGN) of the anaesthetized, paralysed cat. Here the synthetic enzyme for the production of nitric oxide, nitric ... -
Spatial frequency tuning of orientation-discontinuity-sensitive corticofugal feedback to the cat lateral geniculate nucleus
(Wiley, 1996-01-15)[Abstract] 1. The influence of spatial frequency on the inhibitory component of the effects mediated by feedback from the visual cortex has been examined in X and Y cells in the A laminae of the feline dorsal lateral ... -
The influence of nitric oxide on perigeniculate GABAergic cell activity in the anaesthetized cat
(Wiley, 1996-12)[Abstract] We have tested the effect of iontophoretic application of the nitric oxide synthase inhibitor l-nitroarginine on the activity of a population of 53 perigeniculate (PGN) cells, recorded extracellularly in the ... -
Actions of compounds manipulating the nitric Oxide system in the cat primary visual cortex
(Wiley, 1997-10)[Abstract:] We iontophoretically applied NG-nitro-L-arginine (l-NOArg), an inhibitor of nitric oxide synthase (NOS), to cells (n= 77) in area 17 of anaesthetized and paralysed cats while recording single-unit activity ... -
Tonic and bursting activity in the cuneate nucleus of the chloralose-anesthetized cat
(Elsevier, 1998)[Abstract] Whole-cell recordings were obtained from cuneate neurons in anesthetized, paralysed cats. Stimulation of the contralateral medial lemniscus permitted us to separate projection cells from presumed interneurons. ... -
Early visual processing during binocular rivalry studied with visual evoked potentials
(Lippincott, 1999)[Abstract] Visual evoked potentials (VEPs) were recorded to probes presented to the dominant and suppressed eyes in a binocular rivalry paradigm. Probes presented to the suppressed eye interrupted the current dominance ... -
Sensorimotor cortical influences on cuneate nucleus rhythmic activity in the anesthetized cat
(Elsevier, 1999)[Abstract] This work aimed to study whether the sensorimotor cerebral cortex spreads down its rhythmic patterns of activity to the dorsal column nuclei. Extracellular and intracellular recordings were obtained from the ... -
Modelling the circuitry of the cuneate nucleus
(Springer, 1999)Experimental data recorded in cat "in vivo" offer a new picture of the cuneate nucleus. Clasically definied as a simple relay station, the cuneate nucleus is currently seen as a fundamental stage in somatosensory information ... -
Sight and insight – on the physiological role of nitric oxide in the visual system
(Elsevier, 1999-03-01)[Abstract] Research in the fields of cellular communication and signal transduction in the brain has moved very rapidly in recent years. Nitric oxide (NO) is one of the latest discoveries in the arena of messenger molecules. ... -
Cortico-subcortical synchronization in the chloralose-anesthetized cat
(Elsevier, 1999-07)[Abstract] The spontaneous and paroxysmal cerebral cortical synchronized activity was used as reference to study the cortical impact exerted on subcortical neurons. The sensorimotor cortical synchronized activity spread ... -
Lemniscal recurrent and transcortical influences on cuneate neurons
(Elsevier, 2000)[Abstract] Intracellular recordings were obtained from cuneate neurons of chloralose-anesthetized, paralysed cats to study the synaptic responses induced by electrical stimulation of the contralateral medial lemniscus. ... -
The primate pulvinar nuclei: vision and action
(Elsevier, 2000)[Abstract] The pulvinar nuclei of the thalamus are proportionately larger in higher mammals, particularly in primates, and account for a quarter of the total mass. Traditionally, these nuclei have been divided into oral ... -
Specific roles of NMDA and AMPA receptors in direction-selective and spatial phase-selective responses in visual cortex
(Society of Neuroscience, 2001)[Abstract] Cells in the superficial layers of primary visual cortex (area 17) are distinguished by feedforward input from thalamic-recipient layers and by massive recurrent excitatory connections be- tween ... -
La corteza cerebral modula la transmisión cutánea a través de los núcleos de los cordones posteriores
(J.V. Sánchez Andrés, 2001)The mechanisms used by the cerebral cortex to modulate the cutaneous information at prethalamic level have been scarcely studied. This article reviews experimental evidence leading to a better understanding of this issue ... -
A realistic computational model of the local circuitry of the cuneate nucleus
(Springer, 2001)Intracellular recordings obtained under cutaneous and lemniscal stimulation show that the afferent fibers can establish excitatory and inhibitory synaptic connections with cuneothalamic neurons [5]. In addition, distinct ... -
Foci of orientation plasticity in visual cortex
(Nature, 2001-05-03)[Abstract] Cortical areas are generally assumed to be uniform in their capacity for adaptive changes or plasticity1, 2, 3, 4. Here we demonstrate, however, that neurons in the cat striate cortex (V1) show pronounced ...