According to decades of research in affective neuroscience, approach and avoidance motivation are supported by the left and right hemispheres, respectively. With the Sword and Shield Hypothesis (SSH), we challenge this conclusion, and propose a novel principle underlying the organization of emotion in the brain: the hemispheric lateralization of motivation depends on the neural locus of motor c...

Asterixis, firstly described in metabolic encephalopathies, may occur unilaterally in patients with various focal brain diseases. Although hardly localizing, most reported cases have showed a contralateral thalamic pathology; but Lesions in the medial frontal lobe, parietal lobe, brain stem, basal ganglia, insular lesions, may also cause unilateral asterixis. In this article, three cases of acu...

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...

SELDOM does one have the privilege of reviewing work as important and impressive as these volumes. Along with Schore’s earlier work, Affect Regulation and the Origin of the Self, these two new collections constitute a trilogy of carefully crafted and researched papers. They also mark “a clarion call for a paradigm shift, both in psychiatry and in biology and in psychoanalytic psychotherapies.” ...

In the human brain, the dominant hemisphere is more complex than the non-dominant hemisphere. Hence, cerebral ischemia of the dominant hemisphere often leads to serious consequences. This study aims to establish a rodent model of focal cerebral ischemia in the dominant hemisphere. The quadruped feeding test was used to screen 70 male Sprague Dawley rats. From this test, 48 rats with right paw p...

Scientists have for centuries tried to localize and define artistic talent. Modern diagnostic techniques that enable visualization and measurement of brain morphology and function are positron emission tomography (PET), magnetic resonance imaging (MRI), functional transcranial Doppler (fTCD) and some biochemical methods. In the majority of people, the left hemisphere is dominant, but the right ...

Sexual function and orientation is a complex platform of human personality which is being modulated by several brain circuities which is less understood currently. Recently, several studies have demonstrated interesting results regarding the role of several brain locations in sexual behaviors and orientation. Sexual arousal in homosexual men are associated with activation of the left angular gy...

The paper deals with the following problem: is returning to wrong conjectures necessary to achieve full power of algorithmic learning? Returning to wrong conjectures complements the paradigm of U-shaped learning [3,7,9,24,29] when a learner returns to old correct conjectures. We explore our problem for classical models of learning in the limit from positive data: explanatory learning (when a le...

Neal A. Chatterjee, BA She was sobbing. Her husband, eyes lowered, turned his head slowly in disapproving judgment. With his tan-colored hat affixed tightly to his tancolored head, he slouched further in his seat. David, also slouched on the patient table, seemed completely uninterested in the parental affair. He had his own tension. Head bowed, he desperately clutched his flexed right hand wit...