Form Perception

121.

Categorical perception of familiar objects.

We report three experiments where the categorical perception of familiar, three-dimensional objects was investigated. A continuum of shape change between 15 pairs of objects was created and the images along the continuum were used as stimuli. In ...
Fiona N Newell, Heinrich H Bülthoff (Cognition, 200209)
categorical-perception-familiar-objects.asp

122.

The importance of spatial scale in determining illusions of orientation.

The twisted-cord illusion is a powerful demonstration of interaction between 1st-order (luminance-defined) and 2nd-order (contrast-defined) orientation processing. The perceived orientation of contrast-defined objects is pulled towards their 1st-order ...
Jennifer Skillen, David Whitaker, Ariella V Popple, Paul V McGraw (Vision Res, 200209)
importance-spatial-scale-determining-illusions-orientation.asp

123.

Age differences in overlapping-task performance: evidence for efficient parallel processing in older adults.

Two psychological refractory period (PRP) experiments were conducted to examine overlapping processing in younger and older adults. A shape discrimination task (triangle or rectangle) for Task 1 (T1) and a lexical-decision task (word or nonword) for Task ...
Philip A Allen, Mei-Ching Lien, Martin D Murphy, Raymond E Sanders, Katherine S Judge, Robert S McCann (Psychol Aging, 200209)
age-differences-overlapping-task-performance-evidence-efficient.asp

124.

Fusiform gyrus volume reduction in first-episode schizophrenia: a magnetic resonance imaging study.

BACKGROUND: The fusiform gyrus (occipitotemporal gyrus) is thought to be critical for face recognition and may possibly be associated with impaired facial recognition and interpretation of facial expression in schizophrenia. of postmortem studies have ...
Chang Uk Lee, Martha E Shenton, Dean F Salisbury, Kiyoto Kasai, Toshiaki Onitsuka, Chandlee C Dickey, Deborah Yurgelun-Todd, Ron Kikinis, Ferenc A Jolesz, Robert W McCarley (Arch Gen Psychiatry, 200209)
fusiform-gyrus-volume-reduction-first-episode-schizophrenia-magnetic.asp

125.

Revisiting the picture-superiority effect in symbolic comparisons: do pictures provide privileged access?

In 4 experiments, symbolic comparisons were investigated to test semantic-memory retrieval accounts espousing processing advantages for picture over word stimuli. In Experiment 1, participants judged pairs of animal names or pictures by responding to ...
Paul C Amrhein, Mark A McDaniel, Paula Waddill (J Exp Psychol Learn Mem Cogn, 200209)
revisiting-picture-superiority-effect-symbolic-comparisons-pictures.asp

126.

Toward a unified account of spacing effects in explicit cued-memory tasks.

Memory for repeated items improves when presentations are spaced during study. This effect is found in memory tasks using different types of material, paradigms, and participant populations. Although several explanations have been proposed, none explains ...
Riccardo Russo, Nicola Mammarella, S E Avons (J Exp Psychol Learn Mem Cogn, 200209)
toward-unified-account-spacing-effects-explicit-cued-memory-tasks.asp

127.

Haptic discrimination of stimuli varying in amplitude and width.

We studied active haptic discrimination of the geometrical features of an object. The geometrical parameters under investigation were the amplitude and width of a gaussian-shaped surface. Haptic discrimination thresholds were measured with regard to ...
Stefan Louw, Astrid M L Kappers, Jan J Koenderink (Exp Brain Res, 200209)
haptic-discrimination-stimuli-varying-amplitude-width.asp

128.

Role of structure and component in judgments of visual similarity of Chinese characters.

Skilled readers of Chinese participated in sorting and visual search experiments. The sorting results showed that under conditions of conflicting information about structure and component, subjective judgments of the visual similarity among characters ...
Su-Ling Yeh, Jing-Ling Li (J Exp Psychol Hum Percept Perform, 200208)
role-structure-component-judgments-visual-similarity-chinese.asp

129.

Acquisition of visual shape primitives.

Shape primitives have long been proposed as components for object models in the visual system, and account for a considerable body of behavioral findings. While a large amount of effort has been devoted to the study of detection of these parts in the ...
Ladan Shams, Christoph von der Malsburg (Vision Res, 200208)
acquisition-visual-shape-primitives.asp

130.

Contour completion through depth interferes with stereoacuity.

Local disparity signals must interact in visual cortex to represent boundaries and surfaces of three-dimensional (3D) objects. We investigated how disparity signals interact in 3D contours and in 3D surfaces generated from the contours. We compared flat ...
Dawn Vreven, Suzanne P McKee, Preeti Verghese (Vision Res, 200208)
contour-completion-depth-interferes-stereoacuity.asp