A diminished top-down influence has been proposed in autism, to account for enhanced performance in low-level perceptual tasks. Applied to perceptual categorization, this hypothesis predicts a diminished influence of category on discrimination. In order to test this hypothesis, we compared categorical perception in 16 individuals with and 16…

The loss of one sensory modality can lead to a reorganization of the other intact sensory modalities. In the case of individuals who are born profoundly deaf, there is growing evidence of changes in visual functions. Specifically, deaf individuals demonstrate enhanced visual processing in the periphery, and in particular enhanced peripheral visual…

Automatic change detection is a fundamental capacity of the human brain. In audition, this capacity is indexed by the mismatch negativity (MMN) event-related potential, which is putatively supported by a network consisting of superior temporal and frontal nodes. The aim of this study was to elucidate the roles of these nodes within the neural…

The aim of the study was to examine whether auditory binaural interaction, defined as any difference between binaurally evoked responses and the sum of monaurally evoked responses, which is thought to index functions involved in the localization and detection of signals in background noise, is atypical in a group of children with specific language…

Replies to comments mad by Howe et al. on the current author's original article. The double-anchoring theory of lightness (P. Bressan, 2006b) assumes that any given region belongs to a set of frameworks, created by Gestalt grouping principles, and receives a provisional lightness within each of them; the region's final lightness is a weighted…

The purposes of this study were to determine the modality strengths of each child in grades 1 to 5 at Butcher Children's School, Emporia, Kansas, and to ascertain whether modality can be linked to grade level, to reading achievement, or to sex. For identifying modality strength, the Swassing-Barbe Modality Index (SBMI), a matching-to-sample task,…

A U.S. Air Force study was designed to develop instruction based on the supplantation theory, in which tasks are performed (supplanted) for individuals who are unable to perform them due to their cognitive style. The study examined the effects of linear and multiple imagery in presenting a task requiring visual comparison and location to…

An experimental test of visual closure based on an information-theory concept of perception was devised to test the ability to discriminate visual stimuli with reduced cues. The test is to be administered in a timed individual situation in which the subject is presented with sets of incomplete drawings of simple objects that he is required to name…

Literature is reviewed which discusses the role of proprioceptors in basic perceptual and motoric functions. The author cites research on the functions of the muscle spindles in controlling muscles which in turn provide energy, stimulation, and activation of the central nervous system. Research on the relation of motor functions to language…

A global view requires not only a broader perspective, but also greater depth to anchor it firmly. In increasingly changing contexts, are we connected to ourselves in a way that feeds our spirits and nourishes our work? A professional sphere based only on research and practice risks being unbalanced and may jeopardize our well-being as academics.…

Information Technology (IT) has spawned the growth of novel and innovative market mechanisms (such as online auctions) and associated businesses (such as eBay and Priceline) that were not feasible without the capabilities and reach of these modern information technologies. Previous studies on designing trading mechanisms for online markets…

With reference to an ESRC/TLRP project conducted across two academic years with working-class students in higher education (HE), this paper explores the relationship between geographies of home and those of university at two UK HE institutions. It addresses how social relations inflected by class influence the experience of students as they adapt…

This article presents the argument that combining visual methods with other qualitative research methods enhances the inherent strengths of each methodology and allows new understandings to emerge. These would otherwise remain hidden if only one method were used in isolation. In a qualitative inquiry of an elementary teacher's constructivist…

A series of experiments examined the role of the motor system in imagined movement, finding a strong relationship between imagined walking performance and the biomechanical information available during actual walking. Experiments 1 through 4 established the finding that real and imagined locomotion differ in absolute walking time. We then tested…

In this article, students' perceptions of the benefits and the challenges of creating a wiki for a language arts methods class are explored through their online reflections and interview transcripts. The students' own words describe their experiences about learning course content while collaborating to create a course wiki. Reflecting on the…