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Physical Practice (physical + practice)
Selected AbstractsPHYSICAL TRAINING, ETHICAL DISCIPLINE, AND CREATIVE VIOLENCE: Zones of Self-Mastery in the Hindu Nationalist MovementCULTURAL ANTHROPOLOGY, Issue 1 2010ARAFAAT A. VALIANI ABSTRACT This essay advances understanding of how projects of self-mastery within neighborhood physical training programs associated with the Hindu Nationalist Movement produce subjects that are simultaneously ethically oriented and creatively violent. Such an analysis is contrasted with the conventional view that Hindu Nationalist volunteers are mere objects who blindly conform to a nationalist ideology or religious norms. Drawing on the author's participant observation of physical conditioning within the movement, the essay illustrates how combat training depends on an analytical sensibility by which techniques of drill are simultaneously learned and innovated by volunteers in a disciplinary zone of self-experimentation. Within such a zone, volunteers modify drill routines, enriching and refining them on an everyday basis. Thus, the evolution of physical techniques transforms training into an unfolding enterprise that is continually oriented toward attaining physical and moral self-mastery through the probing of bodily exercises. The essay underscores the social significance of such forms of physical self-exploration, in which movement volunteers understand the iterative probing of physical practice as driven by a resolve that deepens the volunteer's moral fortitude. The essay illuminates how a set of physical and moral processes are intertwined, processes through which militant subjects are culturally formed and routines of violence are sustained as a social and ethical practice. Physical training is connected to anti-Muslim pogroms in postcolonial Gujarat demonstrating how the evolving nature of physical training shapes, prolongs, and enables the improvisation of tactics of ethnic cleansing. [source] Concurrent action observation modulates practice-induced motor memory formationEUROPEAN JOURNAL OF NEUROSCIENCE, Issue 3 2008K. Stefan Abstract Motor practice is associated with the formation of elementary motor memories. Here we tested in human subjects the hypothesis that observation of a motor training associated with physical practice will modulate the encoding process of a motor memory relative to physical practice alone. Voluntary thumb motions were practiced (i) alone in a direction opposite to the baseline direction of transcranial magnetic stimulation (TMS)-evoked movements (physical practice, PP) and in combination with observation of synchronous movements that were either (ii) directionally congruent (same direction, PP + AOc) or (iii) non-congruent (opposite direction, PP + AOnc) to the practiced ones. We evaluated the following measures of motor memory formation: percentage of TMS-evoked thumb movements falling in the direction of practiced motions, acceleration of TMS-evoked movements along the principal movement axis and corticomuscular excitability of training muscles as indexed by motor-evoked potential amplitudes. Both PP and PP + AOc, but not PP + AOnc, significantly increased the percentage of TMS-evoked movements falling in the practiced direction, changed the compound acceleration vector into the trained direction and enhanced the motor-evoked potential amplitudes in the training agonist muscle. The percentage of TMS-evoked movements falling in the practiced direction increased significantly more after PP + AOc than after PP. Across all measures of motor memory formation, PP + AOc was most efficacious, followed by PP and PP + AOnc. Action observation modulates practice effects on formation of a motor memory. Strengthening of the process of motor memory encoding depends on the directional congruency of the observed model. [source] Step-by-step: The effects of physical practice on the neural correlates of locomotion imagery revealed by fMRIHUMAN BRAIN MAPPING, Issue 5 2010Silvio Ionta Abstract Previous studies have shown that mental imagery is a suitable tool to study the progression of the effect of practice on brain activation. Nevertheless, there is still poor knowledge of changes in brain activation patterns during the very early stages of physical practice. In this study, early and late practice stages of different kinds of locomotion (i.e., balanced and unbalanced) have been investigated using functional magnetic resonance imaging during mental imagery of locomotion and stance. During the task, cardiac activity was also recorded. The cerebral network comprising supplementary motor area, basal ganglia, bilateral thalamus, and right cerebellum showed a stronger activation during the imagery of locomotion with respect to imagery of stance. The heart beat showed a significant increase in frequency during the imagery of locomotion with respect to the imagery of stance. Moreover, early stages of practice determined an increased activation in basal ganglia and thalamus with respect to late stages. In this way, it is proposed the modulation of the brain network involved in the imagery of locomotion as a function of physical practice time. Hum Brain Mapp, 2010. © 2009 Wiley-Liss, Inc. [source] | ||||||||||