Primary Visual Cortex
<p>Dopaminergic pathway and primary visual cortex are involved in the freezing of gait in Parkinson’s disease: a PET-CT study</p>
... left primary visual cortex was signi fi cantly lower in the FOG group than that in the non-FOG group after adjusting for age and sex by covariance analysis ...
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Origin of Synchronized Low Frequency Blood Oxygen Level–Dependent Fluctuations in the Primary Visual Cortex
... Fig 2. Synchronized BOLD fluctuations. A, Time series data from 1 subject. Six minutes of data are shown. Traces represent average BOLD signal intensity from regions of interest in the bilateral primary ...
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Effects of healthy aging on human primary visual cortex
... reduced visual acuity from changes in both the eye and neural circuits ...subjects, primary visual cortex has been shown to have reduced responses to visual stimulation ...affects ...
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A Survey of Architecture and Function of the Primary Visual Cortex (V1)
... largest visual area, known as the primary visual cortex or V1, has greatly contributed to the current understanding of mam- malian and human visual pathways and their role in ...
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Primary visual cortex neurons that contribute to resolve the aperture problem
... in primary visual cortex are sensitive only or principally to stimulation within a spatially restricted receptive field (classical receptive ...that primary visual cortex neu- ...
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Altered functional connectivity of primary visual cortex in late blindness
... Background: Previous studies demonstrated that early blindness is associated with abnormal intrinsic functional connectivity (FC) between the primary visual cortex (V1) and other sensory areas. ...
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Plasticity, and Its Limits, in Adult Human Primary Visual Cortex
... vertical visual contrast energy for four days continuously, in an attempt to mimic classic selective rearing experiments (Hirsch and Spinelli, 1970; Blakemore and Cooper, 1970) in adult ...in primary ...
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Gamma Oscillations in the Mouse Primary Visual Cortex as an Endophenotype of Schizophrenia
... mouse primary visual cortex (V1) in response to changes in stimulus ...The visual responses described here were readily abolished or became highly variable when the anesthesia level induced ...
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Tilt Aftereffects in a Self-Organizing Model of the Primary Visual Cortex
... In the self-organization process, the neurons developed oriented receptive fields organized into orientation columns very similar to those observed in the primary visual cortex (figure 3b). The ...
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Uncomfortable images produce non sparse responses in a model of primary visual cortex
... of visual information by the nervous system requires significant metabolic ...our visual system appears to be optimized to encode typical natural images as efficiently as ...the primary visual ...
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A neural model of contour integration in the primary visual cortex
... receiving visual inputs, whereas other cells process the signals and send outputs to higher visual centers (Salin & Bullier, ...the primary visual cortex ...
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Does congenital deafness affect the structural and functional architecture of primary visual cortex?
... peripheral visual acuity in congenitally deaf humans have found alterations in auditory cortex, as well as attention related areas in higher visual and parietal ...early visual areas between ...
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Computational design and nonlinear dynamics of a recurrent network model of the primary visual cortex
... the primary visual cortex, this recurrent dynamics is instantiated by finite range, lateral, intra-cortical neural ...the cortex is the reti- nal image filtered through cortical receptive ...
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Induced gamma activity in primary visual cortex is related to luminance and not color contrast: an MEG study
... the primary visual cortex (Adjamian et ...extrastriate visual areas for most SFs, particularly those of 2–4 ...the visual cortex has a linear relation- ship with stimulus ...
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Detection of the movement direction by the cells with directional receptive fields in the primary visual cortex of the cat
... The study was performed on neurons with dire- ction selective (DS) receptive fields (RFs) in the primary visual cortex of the cat. Preferred dire- ctions (PDs) of these cells to a single light spot ...
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Gain control from beyond the classical receptive field in primate primary visual cortex
... Gain control is a salient feature of information processing throughout the visual system. Heeger (1991, 1992) described a mechanism that could underpin gain control in primary visual cortex ...
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Comparison of functional MR and H2 15O positron emission tomography in stimulation of the primary visual cortex
... In our experimental condition, spatial loca- tion of the activated cortex was not in question, in that the location of primary visual cortex has long been known. Further, the stimulus used ...
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Binocular pattern deprivation interferes with the expression of proteins involved in primary visual cortex maturation in the cat
... of primary visual cortex is shaped by visual experience and mirrored by region-specific ac- tivity reporter gene expression, in conjunction with the previously described central-to-peripheral ...
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Retinotopic mapping of the primary visual cortex - a challenge for MEG imaging of the human cortex
... the primary visual cortex (V1), for which the ground truth is known to a reasonable degree of accuracy, enabling the comparison of MEG source reconstructions with the true electrical state of the ...
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The context dependence of network response properties in the primary visual cortex of the primate and cat
... in visual space indicate that these surround effects might be mediated by the long horizontal projections of excitatory and inhibitory cells in the cortex, or feedback from higher visual ...of ...
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