Form Perception

31.

A primitive memory system for the deployment of transient attention.

When transient attention is summoned by the sudden appearance of a large cue, it can be deployed to a small portion of the cue where a target appeared on previous trials (Kristjánsson, Mackeben, & Nakayama, 2001). This result runs counter to the view ...
Arni Kristjánsson, Ken Nakayama (Percept Psychophys, 200307)
primitive-memory-system-deployment-transient-attention.asp

32.

Attentional and oculomotor capture with static singletons.

Previous research has shown that in visual search static singletons have the ability to capture attention (Theeuwes, 1991a, 1992). The present study investigated whether these singletons also have the ability to capture the eyes. Participants had to make ...
Jan Theeuwes, Giel-Jan De Vries, Richard Godijn (Percept Psychophys, 200307)
attentional-oculomotor-capture-static-singletons.asp

33.

Configural information is processed differently in perception and recognition of faces.

Several previous studies have stressed the importance of processing configural information in face recognition. In this study the perception of configural information was investigated. Large overestimations were found when the eye-mouth distance and the ...
Adrian Schwaninger, Stefan Ryf, Franziska Hofer (Vision Res, 200306)
configural-information-processed-differently-perception-recognition.asp

34.

Dual nonlinearities regulate contrast sensitivity in pattern discrimination tasks.

Many current psychophysical models propose that visual processing in cortex is hierarchical, with nonlinearities sandwiched between linear stages of processing. In earlier publications, we proposed a model of this type to account for masking effects ...
Lynn A Olzak, James P Thomas (Vision Res, 200306)
dual-nonlinearities-regulate-contrast-sensitivity-pattern.asp

35.

Illusory contours and specific regions of human extrastriate cortex: evidence from rTMS.

Functional magnetic resonance imaging studies showed that perception of illusory contours is associated with extrastriate cortex activation prevailing on the right side. 1 Hz repetitive transcranial magnetic stimulation (rTMS) is able to induce lasting ...
F Brighina, R Ricci, A Piazza, S Scalia, G Giglia, B Fierro (Eur J Neurosci, 200306)
illusory-contours-specific-regions-human-extrastriate-cortex-evidence.asp

36.

The effects of collinearity and orientation on texture visual evoked potentials.

OBJECTIVE: The aim of the research was to study the effects of stimulus orientation at both the local (textons) and the global (segregated elements) level on texture visual evoked potentials (tVEPs). METHODS: Two tVEP paradigms were presented to 10 ...
Alfredo Romani, Roberto Callieco, Eleonora Tavazzi, Vittorio Cosi (Clin Neurophysiol, 200306)
effects-collinearity-orientation-texture-visual-evoked-potentials.asp

37.

The Snodgrass and Vanderwart set revisited: norms for object manipulability and for pictorial ambiguity of objects, chimeric objects, and nonobjects.

In this paper, we propose a standardized set of 480 black-and-white line drawings, half meaningful and half meaningless. Meaningful pictures represent a common object, and were selected from the Snodgrass and Vanderwart set (1980). Meaningless pictures ...
M N Magnié, M Besson, M Poncet, C Dolisi (J Clin Exp Neuropsychol, 200306)
snodgrass-vanderwart-set-revisited-norms-object-manipulability.asp

38.

Planning and drawing of occluded objects by young children.

When children under 8 yr. old draw an object occluded by another, they depict each object separately either horizontally or vertically. This study examined whether children aged 4-6-yr.-old intended to draw occluding and occluded objects separately at ...
Masanori Taguchi, Seiya Hirai (Percept Mot Skills, 200306)
planning-drawing-occluded-objects-young-children.asp

39.

Luminance mechanisms mediate the motion of red-green isoluminant gratings: the role of "temporal chromatic aberration".

In this paper we use a dynamic noise-masking paradigm to explore the nature of the mechanisms mediating the motion perception of drifting isoluminant red-green gratings. We compare contrast thresholds for the detection and direction discrimination of ...
Kathy T Mullen, Tatsuya Yoshizawa, Curtis L Baker (Vision Res, 200305)
luminance-mechanisms-mediate-motion-red-green-isoluminant-gratings.asp

40.

A physiological correlate of the "Zoom Lens" of visual attention.

Attending a certain region in space enhances activity in visual areas retinotopically mapped to this region; stimuli presented in this region are preferentially processed. The zoom lens model of visual attention proposes that the attended region can be ...
Notger G Müller, Oliver A Bartelt, Tobias H Donner, Arno Villringer, Stephan A Brandt (J Neurosci, 200305)
physiological-correlate-zoom-lens-visual-attention.asp