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Form Perception (Latest Articles)
Latest indexed articles for 'Form Perception'
Articles 181 to 190 of 200:
The timing of cognitive control in partially incongruent categorization.
30 Aug 2008 
We designed a novel task, partially incongruent categorization (PIC), to examine the timing of cognitive control. In the PIC task, participants categorized the probe stimulus according to a specific concept, and the number of features corresponding ...
rec_pub_17894393-the-timing-cognitive-control-partially-incongruent-categorization.htm
28 Aug 2008 This study aims at segregating the neural substrate for the 3D-form and 3D-motion attributes in structure-from-motion perception, and at disentangling the stimulus-driven and endogenous-attention-driven processing of these attributes. Attention and ...
rec_pub_18805496-processing-3d-form-3d-motion-respective-contributions-attention-based.htm
26 Aug 2008 
We investigated whether the perceptual completion of illusory contours exhibits a vertical bias (J. Pillow & N. Rubin, 2002). Experiments 1-3 measured completion with Pillow and Rubin's shape discrimination procedure, while including novel control ...
rec_pub_19146258-exploration-vertical-bias-perceptual-completion-illusory-contours.htm
Luminance and contrast cues are integrated in global shape detection with contours.
26 Aug 2008 Radial frequency (RF) contours can be used to represent the boundaries of natural objects, making them a useful stimulus with which to study shape processing. The current study used these contours to investigate whether luminance- and ...
rec_pub_18703078-luminance-contrast-cues-integrated-global-shape-detection-contours.htm
Letter perception: from pixels to pandemonium.
25 Aug 2008 In 1959, Oliver Selfridge proposed a model of letter perception, the Pandemonium model, in which the central hypothesis was that letters are identified via their component features. Although a consensus developed around this general approach over ...
rec_pub_18760658-letter-perception-pixels-pandemonium.htm
Multiple mechanisms of illusory contour perception.
24 Aug 2008 A variety of mechanisms have been proposed to explain illusory contour formation. However, since prior studies have focused on a single mechanism, there is no clear consensus regarding contour formation mechanisms. Here we developed a novel vivid ...
rec_pub_18831611-multiple-mechanisms-illusory-contour-perception.htm
Effects of category learning on the stimulus selectivity of macaque inferior temporal neurons.
24 Aug 2008 Primates can learn to categorize complex shapes, but as yet it is unclear how this categorization learning affects the representation of shape in visual cortex. Previous studies that have examined the effect of categorization learning on shape ...
rec_pub_18772261-effects-category-learning-stimulus-selectivity-macaque-inferior.htm
Radial frequency adaptation suggests polar-based coding of local shape cues.
24 Aug 2008 The study of shape processing in the human visual system has frequently employed radial frequency (RF) patterns as conveniently manipulable stimuli. This study uses an adaptation paradigm to investigate how local shape information is sampled in the ...
rec_pub_18675841-radial-frequency-adaptation-suggests-polar-based-coding-local-shape.htm
Perceiving illusory contours: figure detection and shape discrimination.
20 Aug 2008 We investigate the relationship between illusory figure detection and discrimination of its shape, asking whether these depend on a single, two separate, or two sequential processes. In a simultaneous detection-discrimination experiment, we ...
rec_pub_18831608-perceiving-illusory-contours-figure-detection-shape-discrimination.htm
Three-dimensional object shape from shading and contour disparities.
20 Aug 2008 Both non-Lambertian shading, specularities in particular, and occluding contours have ill-matched binocular disparities. For example, the disparities of specularities depend not only on a surface's position but also on its curvature. Shading and ...
rec_pub_18831605-three-dimensional-object-shape-shading-contour-disparities.htm
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