Form Perception

91.

Control over location-based response activation in the Simon task: behavioral and electrophysiological evidence.

In 4 Simon experiments the authors examined control over 2 routes of sensorimotor processing: response priming in the unconditional route and response selection via the conditional route. The Simon effect diminished as the frequency of noncorresponding ...
Birgit Stürmer, Hartmut Leuthold, Eric Soetens, Hannes Schröter, Werner Sommer (J Exp Psychol Hum Percept Perform, 200212)
control-over-location-based-response-activation-simon-task-behavioral.asp

92.

Top-down influence in early visual processing: a Bayesian perspective.

Traditional views of visual processing suggest that early visual neurons are static spatiotemporal filters that extract local features by feedforward computation. The extracted information is then fed forward through a chain of modules to successively ...
Tai Sing Lee (Physiol Behav, 200212)
top-down-influence-early-visual-processing-bayesian-perspective.asp

93.

Newborns recognition of changing and unchanging aspects of schematic faces.

The present study investigated newborns ability to discriminate, recognize, and learn visual information embedded in the schematic face-like patterns preferred at birth. Four experiments were carried out using the visual-paired comparison paradigm. ...
Chiara Turati, Francesca Simion (J Exp Child Psychol, 200212)
newborns-recognition-changing-unchanging-aspects-schematic-faces.asp

94.

Effect of benzodiazepines on structural and conceptual/lexical priming.

RATIONALE: Impaired perceptual priming, as assessed by naming reaction times and accuracy, for briefly presented contour-deleted pictures under lorazepam has been documented in several studies but whether the nature of this impairment is visual versus ...
Muriel Boucart, Irving Biederman, Christine Cuervo, Jean-Marie Danion, Johan Wagemans (Psychopharmacology (Berl), 200212)
effect-benzodiazepines-structural-conceptual-lexical-priming.asp

95.

Learned perceptual associations influence visuomotor programming under limited conditions: cues as surface patterns.

The present set of three experiments was designed to extend the findings that visuomotor programming can make use of learned size information under some, but not all, conditions. An association was established between the size of square wooden blocks and ...
Angela M Haffenden, Melvyn A Goodale (Exp Brain Res, 200212)
learned-perceptual-associations-influence-visuomotor-programming1.asp

96.

Visual search for high-level configural differences as well as low-level critical features is highly efficient early in childhood.

Visual search, or the ability to locate a single target from a field of distractors, is used as a means of assessing the capacity of the visual system with regard to the detection of low-level stimulus dimensions such as color, line orientation, and ...
Peter Gerhardstein, Kimberly S Kraebel, Jennifer Gillis, Shana Lassiter (Dev Psychobiol, 200211)
visual-search-high-level-configural-differences-well-low-level.asp

97.

Shape perception reduces activity in human primary visual cortex.

Visual perception involves the grouping of individual elements into coherent patterns that reduce the descriptive complexity of a visual scene. The physiological basis of this perceptual simplification remains poorly understood. We used functional MRI to ...
Scott O Murray, Daniel Kersten, Bruno A Olshausen, Paul Schrater, David L Woods (Proc Natl Acad Sci U S A, 200211)
shape-perception-reduces-activity-human-primary-visual-cortex.asp

98.

Circular contour frequency in shape discrimination.

Circular contour frequency (the number of radial cycles per degree of unmodulated contour length measured in degrees of viewing angle) is an important factor in determining the deformation threshold of radial frequency (RF) patterns. Radial deformation ...
Brett G Jeffrey, Yi Zhong Wang, Eileen E Birch (Vision Res, 200211)
circular-contour-frequency-shape-discrimination.asp

99.

The beholders share in the perception of orientation of 2-D shapes.

A considerable amount of research demonstrates that people perceive cardinal orientations (horizontal and vertical) more accurately than other orientations; this is termed the oblique effect. We investigated the interaction of this effect with the degree ...
Baoxia Liu, Tjeerd M H Dijkstra, Augustinus H J Oomes (Percept Psychophys, 200211)
beholder-s-share-perception-orientation-d-shapes.asp

100.

Combining sensory information: mandatory fusion within, but not between, senses.

Humans use multiple sources of sensory information to estimate environmental properties. For example, the eyes and hands both provide relevant information about an objects shape. The eyes estimate shape using binocular disparity, perspective projection, ...
J M Hillis, M O Ernst, M S Banks, M S Landy (Science, 200211)
combining-sensory-information-mandatory-fusion-not-senses.asp