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Learning research articles for category:

Visual Perception

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Research Article List

Articles 461 to 470 of 1185:

461.

Cue gradient and cue density interact in the detection and recognition of objects defined by motion, contrast, or texture.

The human visual system is able to extract an object from its surrounding using a number of cues. These include foreground/background gradients in disparity, motion, texture, colour, and luminance. We have investigated normal subjects ability to detect ...
Neva J Bull, Mick Hunter, David C Finlay (Perception, 2003)
cue-gradient-cue-density-interact-detection-recognition-objects.asp


462.

Effect of parietal lobe lesions on saccade targeting and spatial memory in a naturalistic visual search task.

The eye movements of two patients with parietal lobe lesions and four normal observers were measured while they performed a visual search task with naturalistic objects. Patients were slower to perform the task than the normal observers, and the patients ...
Steven S Shimozaki, Mary M Hayhoe, Gregory J Zelinsky, Amy Weinstein, William H Merigan, Dana H Ballard (Neuropsychologia, 2003)
effect-parietal-lobe-lesions-saccade-targeting-spatial-memory.asp


463.

Beauty in a smile: the role of medial orbitofrontal cortex in facial attractiveness.

The attractiveness of a face is a highly salient social signal, influencing mate choice and other social judgements. In this study, we used event-related functional magnetic resonance imaging (fMRI) to investigate brain regions that respond to attractive ...
J ODoherty, J Winston, H Critchley, D Perrett, D M Burt, R J Dolan (Neuropsychologia, 2003)
beauty-smile-role-medial-orbitofrontal-cortex-facial-attractiveness.asp


464.

On nystagmus, saccades, and fixations.

Investigations of the ways in which the eyes move came to prominence in the 19th century, but techniques for measuring them more precisely emerged in the 20th century. When scanning a scene or text the eyes engage in periods of relative stability ...
Benjamin W Tatler, Nicholas J Wade (Perception, 2003)
nystagmus-saccades-fixations.asp


465.

Fast corrections of movements with a computer mouse.

When we reach out for an object with our hand, we transform visual information about the objects position into muscle contractions that will bring our digits to that position. If we reach out with a tool the transformation is different, because the ...
Eli Brenner, Jeroen B J Smeets (Spat Vis, 2003)
fast-corrections-movements-computer-mouse.asp


466.

Visual sensitivity in search tasks depends on the response requirement.

This paper reports a comparison between two tasks of visual search. Two observers carried out, in separate blocks, a saccade-to-target task and a manual-target-detection task. The displays, which were identical for the two tasks, consisted of a ring of ...
Iain D Gilchrist, Charles A Heywood, John M Findlay (Spat Vis, 2003)
visual-sensitivity-search-tasks-depends-response-requirement.asp


467.

Facial expression recognition in people with medicated and unmedicated Parkinsons disease.

Recognition of facial expressions of emotion was investigated in people with medicated and unmedicated Parkinsons disease (PD) and matched controls (unmedicated PD, n=16; medicated PD, n=20; controls, n=40). Participants in the medicated group showed ...
R Sprengelmeyer, A W Young, K Mahn, U Schroeder, D Woitalla, T Büttner, W Kuhn, H Przuntek (Neuropsychologia, 2003)
facial-expression-recognition-people-medicated-unmedicated-parkinson.asp


468.

Electronic doors to education: study of high school website accessibility in Iowa.

The Americans with Disabilities Act (ADA), and Sections 504 and 508 of the Rehabilitation Act, prohibit discrimination against people with disabilities in all aspects of daily life, including education, work, and access to places of public ...
David Klein, William Myhill, Linda Hansen, Gary Asby, Susan Michaelson, Peter Blanck (Behav Sci Law, 2003)
electronic-doors-education-study-high-school-website-accessibility.asp


469.

Cross-modal recognition of shape from hand to eyes in human newborns.

The hypothesis that the ability to coordinate information between tactual and visual modalities is present at birth and dependent on perceptual inherent structures was tested in human newborns. Using an intersensory paired-preference procedure, we showed ...
Arlette Streri (Somatosens Mot Res, 2003)
cross-modal-recognition-shape-hand-eyes-human-newborns.asp


470.

Is color an intrinsic property of object representation?

The role of color in object representation was examined by using a variation of the Stroop paradigm in which observers named the displayed colors of objects or words. In experiment 1, colors of color-diagnostic objects were manipulated to be either ...
Galit Naor-Raz, Michael J Tarr, Daniel Kersten (Perception, 2003)
color-intrinsic-property-object-representation.asp


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