7,696 research outputs found
The Trail, Published Annually by the Senior Class of Daniel Baker College, Volume 6, 1920
No full textYearbook for Daniel Baker College in Brownwood, Texas includes photos of and information about the college, student body, professors, and organizations
The Trail, Published Annually by the Student Body of Daniel Baker College, Brownwood, Texas, Volume 2, 1914
No full textYearbook for Daniel Baker College in Brownwood, Texas includes photos of and information about the college, student body, professors, and organizations
Cross-orientation masking is speed invariant between ocular pathways but speed dependent within them
No full textIn human (D. H. Baker, T. S. Meese, & R. J. Summers, 2007b) and in cat (B. Li, M. R. Peterson, J. K. Thompson, T. Duong, & R. D. Freeman, 2005; F. Sengpiel & V. Vorobyov, 2005) there are at least two routes to cross-orientation suppression (XOS): a broadband, non-adaptable, monocular (within-eye) pathway and a more narrowband, adaptable interocular (between the eyes) pathway. We further characterized these two routes psychophysically by measuring the weight of suppression across spatio-temporal frequency for cross-oriented pairs of superimposed flickering Gabor patches. Masking functions were normalized to unmasked detection thresholds and fitted by a two-stage model of contrast gain control (T. S. Meese, M. A. Georgeson, & D. H. Baker, 2006) that was developed to accommodate XOS. The weight of monocular suppression was a power function of the scalar quantity ‘speed’ (temporal-frequency/spatial-frequency). This weight can be expressed as the ratio of non-oriented magno- and parvo-like mechanisms, permitting a fast-acting, early locus, as befits the urgency for action associated with high retinal speeds. In contrast, dichoptic-masking functions superimposed. Overall, this (i) provides further evidence for dissociation between the two forms of XOS in humans, and (ii) indicates that the monocular and interocular varieties of XOS are space/time scale-dependent and scale-invariant, respectively. This suggests an image-processing role for interocular XOS that is tailored to natural image statistics—very different from that of the scale-dependent (speed-dependent) monocular variety
Binocular contrast interactions: dichoptic masking is not a single process
No full textTo decouple interocular suppression and binocular summation we varied the relative phase of mask and target in a 2IFC contrast-masking paradigm. In Experiment I, dichoptic mask gratings had the same orientation and spatial frequency as the target. For in-phase masking, suppression was strong (a log-log slope of ~1) and there was weak facilitation at low mask contrasts. Anti-phase masking was weaker (a log-log slope of ~0.7) and there was no facilitation. A two-stage model of contrast gain control (Meese, Georgeson and Baker, 2006, J. Vis, 6: 1224-1243) provided a good fit to the in-phase results and fixed its free parameters. It made successful predictions (with no free parameters) for the anti-phase results when (A) interocular suppression was phase-indifferent but (B) binocular summation was phase sensitive. Experiments II and III showed that interocular suppression comprised two components: (i) a tuned effect with an orientation bandwidth of ~±33° and a spatial frequency bandwidth of >3 octaves, and (ii) an untuned effect that elevated threshold by a factor of between 2 and 4. Operationally, binocular summation was more tightly tuned, having an orientation bandwidth of ~±8°, and a spatial frequency bandwidth of ~0.5 octaves. Our results replicate the unusual shapes of the in-phase dichoptic tuning functions reported by Legge (1979, Vis Res, 69: 838-847). These can now be seen as the envelope of the direct effects from interocular suppression and the indirect effect from binocular summation, which contaminates the signal channel with a mask that has been suppressed by the target
Daniel
No full textDalam komentar ini, Pierce menuju poin utama Daniel: kontrol kedaulatan Tuhan atas orang-orang, penguasa, dan sejarah, bahkan ketika umat-Nya menanggung penderitaan. Tuhan tidak meninggalkan hamba-hamba-Nya yang setia, dia menganggap orang-orang jahat bertanggung jawab, dan kerajaannya akan menang. Dari kebenaran abadi ini datang dorongan bagi orang percaya hari ini untuk mempercayai Tuhan lebih dalam dan hidup lebih setia, terlepas dari kejadian terkini.Grand Rapids, Michiganxvi, 213 hlm.: ill., bibli., index; 24x18c
Equivalence of physical and perceived speed in binocular rivalry
No full textThe relative dominance of gratings engaged in binocular rivalry can be influenced by their surroundings. One striking example occurs when surrounding motion is congruent with one but not the other grating (C. L. Paffen, S. F. te Pas, R. Kanai, M. J. van der Smagt, & F. A. Verstraten, 2004). However, such center-surround stimulus configurations can also modulate perceived speed, via a directionally tuned process (H. P. Norman, J. F. Norman, J. T. Todd, & D. T. Lindsey, 1996). We recorded rivalry for Gabor patches embedded in a drifting noise texture. Gratings whose directions opposed the background motion tended to dominate more, and vice versa, consistent with previous findings. Observers then matched the speed of a drifting noise-embedded Gabor to that of a Gabor surrounded by mean luminance. Surround motion produced substantial changes in perceived speed, by at least a factor of two for all observers. We then asked whether perceived speed could account for the contextual effects on dominance. We measured the effects of speed on rivalry dominance by changing the physical speeds of rivaling gratings, as determined by the matching data. We found the same pattern of dominance as for the context experiment, indicating that perceived and true speed influence rivalry in the same manner. We propose a Bayesian interpretation of the perceived speed illusion
Letter from Wm. H. Conser, June 25, 1943
No full textTyped correspondence from Wm. H. Conser, President of the Santa Maria Valley Chamber of Commerce, addressed to whom it may concern about Rev. A. A. Heist, Pastor of the Methodist Church. The correspondence discusses the resolutions passed by the Santa Maria Valley Chamber of Commerce.The Bishop James Chamberlain Baker Collection includes letters, documents, and articles about Japanese Americans during World War II. Subjects in the collection include Japanese Americans mass removal, Pearl Harbor and the aftermath, religion, and support from the non-Japanese American community. The collection was digitized and made accessible online by CSUDH Gerth Archives and Special Collections
Personal performance: the resistant confessions of Bobby Baker
No full textAn analysis of the confessional performances of performance artist, Bobby Baker, in particular 'Box Story'
Episode 11: Reconsidering the Reconstruction Era
No full textThe Department of History’s Holly Baker recently talked with Dr. K. Stephen Prince, Associate Professor of History at the University of South Florida and author of the book Stories of the South: Race and the Reconstruction of Southern Identity, 1865-1915. Dr. Prince was one of the presenters at the Sixth Annual Jerrell H. Shofner Lecture Series on Florida Culture and History. The topic was “Reconsidering Reconstruction: Regional, National, and Global Perspectives”.https://stars.library.ucf.edu/knightshistorycast/1010/thumbnail.jp
Episode 6: Florida and the Age of Fear 2000-2017
No full textThe Department of History’s Holly Baker sat down with renowned author and historian, Dr. Gary Mormino, Professor Emeritus of Florida History at the University of South Florida St Petersburg. Dr. Mormino was the guest speaker at the 5th Annual Jerrell H. Shofner Lecture Series on Florida History and Culture. In the interview, Dr. Mormino talks with Holly about Florida between 2000 and 2017, a time he calls “The Age of Fear”.https://stars.library.ucf.edu/knightshistorycast/1005/thumbnail.jp
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