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Visual Cortex

The Primary Visual Cortex Is Differentially Modulated by Stimulus-Driven and Top-Down Attention.

The Primary Visual Cortex Is Differentially Modulated by Stimulus-Driven and Top-Down Attention.

... correct visual trials ...the visual cortex was larger for the visual trials compared to the auditory trials during the stimulus-driven attentional paradigm ...entire visual ...

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Canine and human visual cortex intact and responsive despite early retinal blindness from RPE65 mutation.

Canine and human visual cortex intact and responsive despite early retinal blindness from RPE65 mutation.

... early visual experience during a critical period of neuronal plasticity defines the response properties of cortical visual neurons, and that after this period these properties become relatively immutable ...

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Anodal transcranial direct current stimulation reduces psychophysically measured surround suppression in the human visual cortex.

Anodal transcranial direct current stimulation reduces psychophysically measured surround suppression in the human visual cortex.

... the visual cortex. Anodal stimulation was delivered to the visual cortex in one session and cathodal stimulation, which is not thought to reduce inhibitory interactions within the human ...

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Is theta burst stimulation applied to visual cortex able to modulate peripheral visual acuity?

Is theta burst stimulation applied to visual cortex able to modulate peripheral visual acuity?

... on visual perception, we measured peripheral visual acuity before and after several stimulation protocols and ...modulated visual acuity measured in the four quadrants of the visual ...of ...

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Endogenous and exogenous hemodynamic signals in primary visual cortex of alert non-human primates

Endogenous and exogenous hemodynamic signals in primary visual cortex of alert non-human primates

... in visual cortex: increased gain of visual responses with increased arousal, decreased spiking noise- correlations, and even recruitment of different cell ...(visual cortex is sensitive ...

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Visual cortex frontend: integrating lines, edges, keypoints and disparaty

Visual cortex frontend: integrating lines, edges, keypoints and disparaty

... During the last decade, the modeling of processes in the visual cortex has become a mature research topic. Models of cells, i.e. simple, complex and end-stopped, have been developed, e.g. [5, 17]. In ...

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Experience-driven axon retraction in the pharmacologically inactivated visual cortex does not require synaptic transmission.

Experience-driven axon retraction in the pharmacologically inactivated visual cortex does not require synaptic transmission.

... inactivated cortex, for ...BoNT/E-treated cortex, in which synaptic transmission was prevented, strongly argue against the latter possibility and support presynaptic mechanisms of open-eye axon ...

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Adaptation in the visual cortex: influence of membrane trajectory and neuronal firing pattern on slow afterpotentials.

Adaptation in the visual cortex: influence of membrane trajectory and neuronal firing pattern on slow afterpotentials.

... currents that Figure 1. Slow postpotential induced by two different patterns of stimulation in visual cortex neurons in vitro . A. The postpotential evoked by the injection of a depolarizing square pulse of ...

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Stimulus-entrained oscillatory activity propagates as waves from area 18 to 17 in cat visual cortex.

Stimulus-entrained oscillatory activity propagates as waves from area 18 to 17 in cat visual cortex.

... Visual stimuli were generated with a PC containing a Leadtek GeForce 6800 video card and displayed on a CRT monitor (Sony CPD-G520, mean luminance of 32 cd/m 2 , 10246768 resolution, refresh rate 120 Hz) placed 57 ...

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Increased amygdala and visual cortex activity and functional connectivity towards stimulus novelty is associated with state anxiety.

Increased amygdala and visual cortex activity and functional connectivity towards stimulus novelty is associated with state anxiety.

... amygdala–sensory cortex projections as a source of top-down modulation of emotional perception based on their intimate structural [9,10] and functional connectivity ...and visual cortex activity ...

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Metabolic changes in the visual cortex of binocular blindness macaque monkeys: a proton magnetic resonance spectroscopy study.

Metabolic changes in the visual cortex of binocular blindness macaque monkeys: a proton magnetic resonance spectroscopy study.

... the visual cortex to be activated by other sensory systems through cross- modal plasticity, which has been demonstrated in previous experiments ...the visual cortex after visual ...

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Artistic rendering of the visual cortex

Artistic rendering of the visual cortex

... of visual search, this includes overt attention and ...the visual cortex, the activities of all keypoint cells at the same position (x, y) can be easily summed over scale s, which leads to a very ...

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The influence of interhemispheric connections on ongoing and evoked orientation preference maps and spiking activity in the cat primary visual cortex

The influence of interhemispheric connections on ongoing and evoked orientation preference maps and spiking activity in the cat primary visual cortex

... from visual area 18 and the TZ between area 17 and ...cat visual cortex can be considered primary visual ...early visual cortical processing, adjustments would have to be made to ...

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NADPH-diaphorase activity in area 17 of the squirrel monkey visual cortex: neuropil pattern, cell morphology and laminar distribution

NADPH-diaphorase activity in area 17 of the squirrel monkey visual cortex: neuropil pattern, cell morphology and laminar distribution

... oxide synthase are co-localized in macaques. Staining for NADPHd activity in area 17 of squirrel monkeys revealed an intense neu- ropil activity that was related to cortical layers, as also observed by cytochrome oxi- ...

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The effect of learning on the function of monkey extrastriate visual cortex.

The effect of learning on the function of monkey extrastriate visual cortex.

... study visual areas as different as early sensory visual and PF cortex? We decided to use natural images for several reasons: The primate visual system evolved in the natural environment under ...

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Perceptual learning of motion direction discrimination with suppressed and unsuppressed MT in humans: an fMRI study.

Perceptual learning of motion direction discrimination with suppressed and unsuppressed MT in humans: an fMRI study.

... extrastriate visual cortex (area MT) is integral to motion perception and is thought to play a key role in the perceptual learning of motion ...alternative visual areas such as V1 enabled learning ...

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Removal of the cortical projections alters expression of NOS in the different cell types of the superficial layers of the superior colliculus in rats

Removal of the cortical projections alters expression of NOS in the different cell types of the superficial layers of the superior colliculus in rats

... of visual cortex facilitated induction of LTP in the SC super- ficial layers, indicating that the corticocollicular pro- jection could have a modulatory function, blocking the enhancing of the synaptic ...

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Neural associations of the early retinotopic cortex with the lateral occipital complex during visual perception.

Neural associations of the early retinotopic cortex with the lateral occipital complex during visual perception.

... low-level visual features in the ...level visual cortex in the ventral visual pathway; the neural activity of the ERC is consequently associated with that of the ...low-level visual ...

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Visual maps in the adult primate cerebral cortex: some implications for brain development and evolution

Visual maps in the adult primate cerebral cortex: some implications for brain development and evolution

... the visual cortex situated between V2 and MT, including the third and fourth visual complexes (Figure ...of cortex interposed between V2 and MT, which is entirely devoted to a single, V3-like ...

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Characterizing spatiotemporal properties of visual motion in the human middle temporal cortex at 7T

Characterizing spatiotemporal properties of visual motion in the human middle temporal cortex at 7T

... The vast infrastructures and clinical possibilities present in the Utrecht University Medical Centre (UMCU) research environment allowed for the setup of the experiments that this thesis revolves around. Having vast ...

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