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Many important physiological processes operate at time and space scales far beyond those accessible to atom-realistic simulations, and yet discrete stochastic rather than continuum methods may best represent finite numbers of molecules interacting in complex cellular spaces. We describe and validate new tools and algorithms developed for a new version of(More)
Two-dimensional band-pass filtered random-dot cinematograms were used to study apparent movement mediated by the short-range process. In the first experiment maximum displacement (dmax) for correct direction of movement was measured for symmetrically filtered low-pass, medium-pass, and high-pass images. dmax was found to be limited by the grain size in the(More)
To determine if apparent movement perception of random-dot cinematograms (RDC) is a cooperative process, we examined the interaction between adjacent areas whose movement, when perceived independently, was in opposite directions. The stimulus contained alternating ambiguous and unambiguous horizontal random-dot stripes of equal width. The ambiguous areas(More)
In this study, we investigated the cooperative and non-cooperative models of stereopsis on apparent movement of the short-range process using spatial frequency filtered random-dot cinematograms. Our results showed that when spatial frequencies were below 4 cycles/degree, maximum displacement (dmax) was decreasing (linearly) with increasing mean frequencies,(More)
A novel random-dot stereogram (RDS) was used to study stereoscopic motion. For this RDS stimulus, the direction of luminance motion and the direction of the moving cyclopean pattern can be independently controlled. The perceived cyclopean motion was examined under five different conditions, in which the cyclopean pattern was moving either up or down, the(More)
Motivated by recent experimental results, we present a systematic theoretical analysis of dark-bright-soliton interactions and multiple-dark-bright-soliton complexes in atomic two-component Bose-Einstein condensates. We study analytically the interactions between two dark-bright solitons in a homogeneous condensate and then extend our considerations to the(More)
Apparent motion mediated by the short-range process was studied. Random-dot cinematograms were used to determine the maximum displacement (dmax) for motion-direction and pattern discrimination. dmax is the maximum spatial separation between a correlated region (target) in the two successively presented random-dot images, when observers can correctly(More)