Results 11 to 20 of about 530,690 (264)
Brazilian Journal of Medical and Biological Research, 1997 Independence among channels processing different aspects of spatial information, including orthogonal stimuli, has been generally assumed in the literature. We tested independence between the processing of jo targets and the processing of either vertical
M.L.B. Simas, J.T. Frutuoso
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Frontiers in Systems Neuroscience, 2011 Controversy remains about how orientation selectivity emerges in simple cells of the mammalian primary visual cortex. In this paper, we present a computational model of how the orientation-biased responses of cells in lateral geniculate nucleus can ...
Levin eKuhlmann +1 more
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Frontiers in Psychology, 2012 Previous studies have shown that complex visual stimuli, such as emotional facial expressions, can influence brain activity independently of the observers’ awareness. Little is known yet, however, about the informational correlates of consciousness—i.e.,
Verena eWillenbockel +4 more
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Sensors, 2021 Grating Interferometry, known in the relevant literature as the High Sensitivity Moiré Interferometry, is a method for in-plane displacement and strain measurement.
Leszek Sałbut, Sergiusz Łuczak
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Frontiers in Human Neuroscience, 2017 Low spatial frequency (LSF) visual information is extracted rapidly from fearful faces, suggesting magnocellular involvement. Autistic phenotypes demonstrate altered magnocellular processing, which we propose contributes to a decreased P100 evoked ...
Adelaide Burt +3 more
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Effect of spatial waveform on apparent spatial frequency
Vision Research, 2002 We examined the effect of spatial waveform on the perceived spatial frequency of a grating target. The luminance profile of 0.5 c/ degrees sinusoidal gratings was modified by either compressive or expansive power functions, and was presented alternately with a true sinusoidal grating.
Anderson, Andrew J, Johnson, Chris A
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Applied Sciences, 2019 In this study, Zernike polynomials and optical fiber field theory are applied to build a mathematical model of coupling efficiency (CE) and spatial mode of aberrations.
Yongkai Liu +6 more
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Visibility Domain Direction-of-Arrival Optimization for Arbitrary 2-D Arrays
IEEE Access, 2022 A visibility-modelling based method is introduced to determine the elevation and azimuth angles for a signal received at a quasi-randomly arranged (2-D) array.
Nicholas Bruce +2 more
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Spatial and spatial‐frequency analysis in visual optics [PDF]
Ophthalmic and Physiological Optics, 2012 Citation information: Westheimer G. Spatial and spatial‐frequency analysis in visual optics. Ophthalmic Physiol Opt 2012, 32 , 271–281. doi: 10.1111/j.1475‐1313.2012.00913.x
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Spatial frequency and visual discomfort
Vision Research, 2011 Images created from noise filtered to have an approximately 1/f amplitude spectrum were altered by adding excess energy concentrated at various spatial frequencies. The effects of this manipulation on judgements of visual discomfort were studied. Visual noise with a 1/f amplitude spectrum (typical of natural images) was judged more comfortable than any
Louise OHare, Paul B. Hibbard
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