This paper examines the relationship between degree of handedness and degree of cerebral lateralization on a task of processing positive facial emotion in right-handed individuals. Three hundred and thirteen right-handed participants (157 women) were given two behavioral tests of lateralization: a handedness questionnaire and a chimeric faces test. Two further handedness measures were taken: fa...

This investigation assessed the effectiveness of a self-help, self-hypnosis treatment in a primary-care setting in Edinburgh, UK. A partially randomized preference (PRP) study design was used, with benchmarking results to trials of CBT and counseling. Patients seeing their general practitioner for depression were offered randomization to, or their treatment preference of, either self-help (self...

Handedness is the most pronounced behavioral asymmetry in humans. Genome-wide association studies have largely failed to identify genetic loci associated with phenotypic variance in handedness, supporting the idea that the trait is determined by a multitude of small, possibly interacting genetic and non-genetic influences. However, these studies typically are not capable of detecting influences...

The author presents his perspective on the character of science, development, and handedness relates these to investigations early development handedness. After presenting some ideas what hemispheric specialization function might mean for neural processing how should be assessed, neuroscience control arms/hands interhemispheric communication coordination are examined developmental processes can...

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The swimming crab Portunus trituberculatus is a durophagous brachyuran. Right-handed crabs are predominant, but left-handed crabs are also found in nature. Left-handedness may arise from loss of the right crusher. We examined whether heterochely (morphology) was correlated with differences in closing force (physical property) and handedness (behaviour). The closing force was stronger in larger ...

Nazari Z1, Sahraei H2, Sadoughi M3 1. MSc in Animal Biology (physiology trend), Lorestan Education Organization, Khorramabad, Iran 2. Assistant Professor, Department of Physiology, Faculty of Medicine, Baghyatallah University of Mesical Sciences, Tehran, Iran 3. Assistant Professor, Department of Biology, Faculty of Science, North Tehran Branch, Islamic Azad University, Tehran, Iran Abstract ...