Primary visual cortex
On nonlinearity in neural encoding models applied to the primary visual cortex
... Abstract. Within the regression framework, we show how different lev- els of nonlinearity influence the instantaneous firing rate prediction of single neurons. Nonlinearity can be achieved in several ways. In partic- ...
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TítuloThe operating regime of local computations in primary visual cortex
... the primary visual cortex (V1) is a paradigmatic example of such a computation, and the last 4 decades witnessed a vivid and polarized discussion about the underlying cortical mechanisms (Reid and ...
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TítuloActions of compounds manipulating the nitric Oxide system in the cat primary visual cortex
... and visual stimuli produced, under computer control (Visual Stimulation System, Cambridge Electronic Design, Cambridge, UK; for details see Sillito, Cudeiro & Murphy, ...
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TítuloLocal networks in visual cortex and their influence on neuronal responses and dynamics
... in primary visual cortex (V1) is now understood at a reasonable level of detail as a result of these efforts [18] and [31], though much still remains to be ...of visual features have been ...
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TítuloEffects on EEG of low (1Hz) and high (15Hz) frequency repetitive transcranial magnetic stimulation of the visual cortex: a study in the anesthetized cat
... the primary visual cortex of the anesthetized cat, known to cause inhibition of the cortex, induces an increase in power in the slow, delta band of the ...the cortex at 15Hz has the ...
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TítuloBilateral tDCS on primary motor cortex: effects on fast arm reaching tasks
... a visual-evoked poten- tial to a flashing LED recorded in the primary visual cortex (V1), plus the minimum latency for an interaction between V1 and M1, plus the latency from M1 activation to ...
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The parietal association cortex of the rat
... striate cortex (Montero et ...two visual areas within what we are now calling the posterior parietal/ anteromedial ...striate cortex. However, the confirmation of distinct visual areas rostral ...
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TítuloAlways returning: feedback and sensory processing in visual cortex and thalamus
... the visual system still consider the mechanism of vision in terms of a sequential elaboration of processing steps through a hierarchy of visual areas, albeit in parallel interacting systems that at least ...
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Densidad Neuronal en la Corteza Visual Primaria (Área 17), en Dos Especies de Octodon
... the visual cortex and its ...(primary visual area), in two sympatric Chilean rodents with different daily activity (Phyllotis darwini and Abrothrix olivaceus), but have not yet determined the ...
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TítuloEffects of static magnetic fields on the visual cortex: reversible visual deficits and reduction of neuronal activity
... to visual cortex of awake primates cause reversible deficits in a visual detection ...the visual deficits are a consequence of a strong reduction in neural ...
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Multiple sessions of transcranial direct current stimulation to the intact hemisphere improves visual function after unilateral ablation of visual cortex
... subject’s visual spatial performance on targets presented at the horizontal meridian representation of the left and right visual hemifields ...the primary but not secondary stimulus was presented) ...
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Some Rare Neuropsychological Syndromes: Central Achromatopsia, Bálint’s Syndrome, Pure Word-Deafness, Supplementary Motor Area Aphasia
... Furthermore, the majority of word-deafness reported cases are due to lesions of the superior left temporal lobe including primary auditory area (Brodmann Areas 41 and 42; e.g., Auer- bach et al., 1982; Gutschalk ...
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2017 Ardila Some rare neuropsychological syndromes
... to visual targets) refers to impair- ment in visually guided reaching movements; it is a defect in guiding a finger toward a target, in absence of motor or sensory ...and visual control of ...
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Algoritmo masivamente paralelo de reconocimiento de objetos basado en el paradigma de la corteza visual artificialMassively parallel object recognition algorithm based on the paradigm of artificial visual cortex
... Algunos patrones efectuados en la convoluci´on paralela, son la base de muchos algoritmos paralelos que aparecen en las aplicaciones. La convoluci´on es una operaci´on de arreglo popular que se usa en varias formas de ...
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Corteza visual evolutiva para la clasificación de objetos en imágenes naturales usando un enfoque multi-objetivoEvolutionary multi-objective visual cortex for object classi?cation in natural images
... Otros sistemas bio-inspirados que han mostrado buenos resultados para resolver el problema de clasificaci ´on de objetos son las redes neuronales convolucionales profundas (CNN, por sus siglas en ingl ´es Convolutional ...
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TítuloSpecific roles of NMDA and AMPA receptors in direction selective and spatial phase selective responses in visual cortex
... somatosensory cortex, intracellular recording of unitary EPSCs in layer 4 and the su- pragranular cortex indicates that both thalamocortical and intra- cortical EPSCs are mediated by AMPA receptors and have ...
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Reconocimiento de objetos con características locales inspiradas en la corteza visual a través de programación genéticaObject recognition with local features inspired by the visual cortex through genetic programming
... corteza visual para el reconocimiento de objetos, surgen modelos inspirados biol´ogicamente los cuales imitan ciertas car- acter´ısticas del procesamiento visual ...corteza visual de mam´ıferos como ...
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From Hearing Sounds to Recognizing Phonemes: Primary Auditory Cortex is A Truly Perceptual Language Area
... Comprehension of verbal information has been approached from different perspectives across time. Contemporary study of brain organization with respect to verbal comprehension began in 1874 with Karl Wernicke’s ...
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TítuloCortico subcortical synchronization in the chloralose anesthetized cat
... ipsilateral cortex drove SC and mRN neurons, while stimulation of the contralateral cortex drove NRGc and CN neurons, and none of the subcortical structures were bilaterally driven from the ...
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TítuloFoci of orientation plasticity in visual cortex
... Cortical areas are generally assumed to be uniform in their capacity for adaptive changes or plasticity 1, 2, 3, 4 . Here we demonstrate, however, that neurons in the cat striate cortex (V1) show pronounced ...
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