Two studies examined self-infiltration (as indexed by a tendency toward false self-ascription of assigned tasks) and its relationship to the activation of the two hemispheres of the human brain. Unilateral muscle contractions of each hand were performed by participants to activate the contralateral hemisphere and influence self-infiltration (confusing assigned tasks as self-selected in memory)....

Research suggests that gestures influence cognitive processes, but the exact mechanism is not clear. Additionally, it has been shown that when a linguistic task (metaphor explanation) involves the right brain hemisphere, the left hand becomes more gesturally active. We hypothesized that gestures with a particular hand activate cognitive processes in the contralateral hemisphere. We examined whe...

Eleven subjects squeezed an electronic dynamometer, at each of three force levels, with both their right and left hands. In right-handed subjects the premovement "readiness" potentials were larger over the hemisphere contralateral to the responding hand. Left-handed subjects show contralateral dominance when responding with the right hand but not when responding with the left hand. The data sug...

INTRODUCTION Rotator cuff tears are a common cause of shoulder disability and pain. Excellent outcomes can be obtained with surgical treatment although this outcome is affected by several factors. We sought to investigate the effect of hand dominance on subjective functional outcome post rotator cuff repair. METHODS All patients who had rotator cuff repair over a calendar year were identified...

In this article we discuss the role of brands in the creation of sustainable markets. We focus on the increasing importance of ethical branding and how it might help to overcome some institutional shortcomings inherent in current market settings. We also discuss the increasing influence of brand communities and the seeming potential for a ‘democratisation’ of brand value and values. Brands are ...

BACKGROUND Pseudoneglect is a normal left sided spatial bias observed with attempted bisections of horizontal lines and a normal upward bias observed with attempted bisections of vertical lines. Horizontal pseudoneglect has been attributed to right hemispheric dominance for the allocation of attention. The goal of this study was to test the hypothesis that the upward bias in vertical line bisec...

The purpose of this study was to determine the dominance preferences of physical educators and the impact the profiles can have on pedagogical knowledge in the teaching/learning environment. Participants completed a self-assessment of dominant preferences survey in the areas of the brain hemisphere, eye, ear, hand and foot preference. Chi-square and cross-tab analysis were used to analyze the d...

The somatosensory cortex of primates contains patch- and bandlike aggregates of neurons that are dominantly activated by cutaneous inputs from the radial, median, and ulnar nerves to the hand. In the present study, the area 3b hand cortex of adult monkeys was mapped immediately before and after combined median and ulnar nerve transection to evaluate the consistency, extent, and location of earl...

Introduction. Congenital Palmaris Longus (PL) absence was found in 15%-20.25% of population globally. This condition and Flexor Digitorum Superficialis (FDS) tendon absence in little finger are not known in Saudi Arabia. We studied prevalence of PL and FDS agenesis in Saudi Arabian population. Methods. A random cross-sectional study was carried out after an ethical approval in the Riyadh univer...

OBJECTIVE To study spatiotemporal patterns of event-related desynchronization (ERD) preceding voluntary sequential finger movements performed with dominant right hand and nondominant left hand. METHODS Nine subjects performed self-paced movements consisting of three key strokes with either hand. Subjects randomized the laterality and timing of movements. Electroencephalogram (EEG) was recorde...