Twenty normal-hearing, sighted subjects (ages 20-42) viewed soundless videotapes of a speaker reading lists from the two forms of the Utley Lipreading Test and three from Harris' revised Central Institute for the Deaf (CID) Everyday Sentences. Results do not support the interchange of Utley and CID sentences for test-retest comparisons of…

A central problem for psychology is vision's reaction to perspective. In the present studies, observers looked at perspective pictures projected by square tiles on a ground plane. They judged the tile dimensions while positioned at the correct distance, farther or nearer. In some pictures, many tiles appeared too short to be squares, many too…

In the paper, we discuss the importance of network interactions between brain regions in mediating performance of sensorimotor and cognitive tasks, including those associated with language processing. Functional neuroimaging, especially PET and fMRI, provide data that are obtained essentially simultaneously from much of the brain, and thus are…

What type of mental representation underlies the gestures that accompany speech? We used a dual-task paradigm to compare the demands gesturing makes on visuospatial and verbal working memories. Participants in one group remembered a string of letters (verbal working memory group) and those in a second group remembered a visual grid pattern…

The authors devised a prestimulus-probe method to assess the allocation of attention as a function of participants' top-down expectancies concerning distractor and target locations. Participants performed the flanker task, and distractor locations remained fixed. On some trials, instead of the flanker display, either 2 simultaneous dots or a…

This commentary reviews the existing research literature concerning support for talking about objects in mediated communication, drawing three conclusions: speech alone is often sufficient for effective conversations; visual information about work objects is generally more valuable than visual information about work participants; and disjoint…

Discusses the role of theoretical knowledge in seeing and makes the case that direct and indirect forms of cognitive perception are pervasive forms of seeing in educational practice, and that both forms are fundamentally theory laden. Suggests that theoretical knowledge enhances our capacity to see in practice. (SLD)

Many studies in visual face recognition have supported a special role for the right fusiform gyrus. Despite the fact that faces can also be recognized haptically, little is known about the neural correlates of haptic face recognition. In the current fMRI study, neurologically intact participants were intensively trained to identify specific…

The specific gray shades in a visual scene can be derived from relative luminance values only when an anchoring rule is followed. The double-anchoring theory I propose in this article, as a development of the anchoring theory of Gilchrist et al. (1999), assumes that any given region (a) belongs to one or more frameworks, created by Gestalt…

Choroidal neovascularization is a rare condition where aberrant blood vessels behind the retina grow and then bleed, eventually becoming blind areas called Fuchs' spots. A woman suffering from this rare eye disease speaks about the challenges of coping with the visual disability and her determination to make the best of what life has to offer.

In the summer of 2009, a professional development partnership was established between the Peoria Public School District (PPSD), a local education agency (LEA), and Illinois State University (ISU) to improve geometric and trigonometric knowledge and skill for high school mathematics teachers as part of the Illinois Mathematics and Science…

In the artistic process the artist verifies and exemplifies his or her perceptions and conception of their work. This paper discusses the model of the artistic process which describes the repertoire of perceptual clues that the artist develops. The rationale for the development of the model is for the art teacher to be able to explain in simple…

Describes a demonstration for college-level cognitive psychology classes of Miller's "Magical Number Seven" concept of the limitation of sensory capacity for processing information. Students report on the number of pennies they observed in a box after viewing the coins for two seconds. Demonstration results consistently support Miller's…

Discusses why public perceptions of the importance of Kettlewell's investigations on the phenomenon of industrial melanism diverge from those of researchers who actually work on the phenomenon. Explains the important role photographic and film depictions of differential bird predation play in Kettlewell's popularizations. (Author/SOE)

Discussion of multimedia libraries and the need for storage, indexing, and retrieval techniques focuses on the combination of computer vision and data mining techniques to model high-level concepts for image retrieval based on perceptual features of the human visual system. Uses fuzzy set theory to measure users' assessments and to capture users'…