A bstract We show that κ -Poincaré invariant gauge theories on -Minkowski space with physically acceptable commutative (low energy) limit must be 5-d. The invariance requirement of the action fixes dimension to d = 5 and selects unique twisted differential calculus which construction can achieved. characterize a BRST symmetry related 5-d noncommutative though definition nilpotent operation, is ...

Visual search performance can be negatively affected when both targets and distracters share a dimension relevant to the task. This study examined if visual search performance would be influenced by distracters that affect a dimension irrelevant from the task. In Experiment 1 within the letter string of a letter search task, target letters were embedded within a word. Experiment 2 compared targ...

Two experiments investigated whether and how task demands affect the way perceptual events and actions are cognitively represented, and how this affects performance. Subjects performed two-dimensional Simon tasks that alternated with, or were embedded into, a logically unrelated ‘‘priming task’’, in which the relevance of horizontal and vertical dimensions varied frequently. Making the horizont...

A free classification study is presented that uses eye-tracking to better characterize the strategies that are employed in the creation of overall similarity and single-dimension categories. The number of fixations across the dimensions and the proportion of dimensions fixated were significantly greater for overall similarity sorters than for single-dimension sorters. Single-dimension sorters g...

Finding and recognizing objects is a fundamental task of vision. Objects can be defined by several "cues" (color, luminance, texture, etc.), and humans can integrate sensory cues to improve detection and recognition [1-3]. Cortical mechanisms fuse information from multiple cues [4], and shape-selective neural mechanisms can display cue invariance by responding to a given shape independent of th...

Objectives: The dominant leg has always received special attention in public health practices and even in professional clinical evaluation and interventions. The aim of this research study was to methodically examine the substrate balance character of the non-dominant leg under dual task conditions and visual deprivation to increase the baseline insight for maintaining body balance and for fall...

BACKGROUND/PURPOSE Improvement in mobility function has been the primary goal in the rehabilitation of children with cerebral palsy. Few studies have examined the effectiveness of task-oriented strength training for children with cerebral palsy. The purpose of this study was to examine the effects of task-oriented strength training on mobility function in children with cerebral palsy. STUDY D...