Results 11 to 20 of about 288,897 (274)
Effects of Spatial Frequency Similarity and Dissimilarity on Contour Integration. [PDF]
PLoS ONE, 2015 We examined the effects of spatial frequency similarity and dissimilarity on human contour integration under various conditions of uncertainty. Participants performed a temporal 2AFC contour detection task.
Malte Persike, Günter Meinhardt
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Do We Need Another Neural Correlate of Contour Integration? [PDF]
i-Perception, 2014 Gilad and colleagues use an elegant combination of voltage-sensitive dyes and high temporal and spatial resolution optical imaging to visualize a differential response to collinear contour elements in monkey V1.
Lee de-Wit, Dietrich Samuel Schwarzkopf
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The Development of Contour Processing: Evidence from Physiology and Psychophysics [PDF]
Frontiers in Psychology, 2014 Object perception and pattern vision depend fundamentally upon the extraction of contours from the visual environment. In adulthood, contour or edge-level processing is supported by the Gestalt heuristics of proximity, collinearity and closure.
Gemma eTaylor +4 more
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Perceptual load modulates contour integration in conscious and unconscious states [PDF]
PeerJ, 2019 Previous research has documented that contour detection and integration may either be affected by local features such as the distances between elements or by high-level cognitive factors such as attention in our visual system. Less is known about how low
Kaiwen Cheng +4 more
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An Event-Related Potential Examination of Contour Integration Deficits in Schizophrenia [PDF]
Frontiers in Psychology, 2013 Perceptual organization, which refers to the ability to integrate fragments of stimuli to form a representation of a whole edge, part, or object, is impaired in schizophrenia. A contour integration paradigm, involving detection of a set of Gabor patches
Pamela D Butler +17 more
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Dynamics of contour integration
Vision Research, 2001 To determine the dynamics of contour integration the temporal properties of the individual contour elements were varied as well as those of the contour they form. A temporal version of a contour integration paradigm (Field, D. J., Hayes, A., & Hess, R. F.
Hess, Robert F. +2 more
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Contour integration across depth
Vision Research, 1995 In order to investigate the extent of the local connections subserving contour integration across depth, we measured performance for detecting the continuity of a path of Gabor elements distributed in depth and embedded in a three-dimensional field of random background elements.
Hess, Robert F., Field, David J.
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Closure facilitates contour integration
Vision Research, 2007 Closed contours are often better perceived than those not fully enclosing an area, i.e., open contours. This facilitation of contour integration by closure, however, has been questioned arguing that in earlier studies closed contours were often "smoother" than open ones, because open contours usually had turning points.
Mathes, Birgit, Fahle, Manfred
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Ensemble Empirical Mode Decomposition Analysis of EEG Data Collected during a Contour Integration Task. [PDF]
PLoS ONE, 2015 We discuss a data-driven analysis of EEG data recorded during a combined EEG/fMRI study of visual processing during a contour integration task. The analysis is based on an ensemble empirical mode decomposition (EEMD) and discusses characteristic features
Karema Al-Subari +5 more
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Contour integration in anisometropic amblyopia
Vision Research, 1998 Contour integration was measured in a group of anisometropic amblyopes to test the idea recently put forward that positional uncertainty sets a fundamental limit to contour integration in amblyopia. Anisometropic amblyopia, unlike strabismic amblyopia, has little or no positional uncertainty once the initial filtering loss has been taken into account ...
Hess, Robert F., Demanins, Rita
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