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71.
Numerous studies have examined control of force magnitude, but relatively little research has considered force direction control. The subjects applied isometric forces to a handle and the authors compared within-trial variability when force is produced in different directions. The standard deviation of the force parallel to the prescribed direction of force production increased linearly with the targeted force level, as did the standard deviation of the force perpendicular to the instructed direction. In contrast, the standard deviation of the angle of force production decreased with increased force level. In the 4 (of 8) instructed force directions where the endpoint force was generated due to a joint torque in only 1 joint (either the shoulder or elbow) the principal component axes in force space were well aligned with the prescribed direction of force production. In the other directions, the variance was approximately equal along the 2 force axes. The variance explained by the first principal component was significantly larger in torque space compared to the force space, and mostly corresponded to positive correlation between the joint torques. Such coordinated changes suggest that the torque variability was mainly due to the variability of the common drive to the muscles serving 2 joints, although this statement needs to be supported by direct studies of muscle activation in the future. 相似文献
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Dr. Henry J. Friedman M.D. 《Psychoanalytic Inquiry》2013,33(5):640-657
This paper examines sources of resistance to the analyst's entering into and developing a necessary and appropriate relatedness to the patient. The elements of two major theoretical approaches, namely contemporary conflict theory and selfpsychology, that interfere with the analyst's comfort in acknowledging his or her feeling involvement with the patient are examined. A case discussion, drawn from a recent American Psychoanalytic Association meeting is used to demonstrate the absence of a relational perspective in an analysis of 15 months duration. 相似文献
73.
Maurice Friedman 《Humanistic Psychologist》2013,41(3):277-288
Abstract Most personal, social and environmental stress results from our estrangement from nature's wise unconditional love within and about us. A new integrated ecology training program uniquely addresses this great challenge to the psychological community. Counseling students in natural areas over a thirty year period has produced ninety‐seven unique nature‐connecting activities that renew over forty‐nine inherent sensory fulfillments. These ecopsychology activities reduce our estrangement, its pain and adverse effects. Natural inborn feelings of love and understanding express themselves. They catalyze responsible relationships that fill the emotional voids which fuel our destructive habits, dependencies and abandonment feelings. They give natural areas added value as rejuvenators of our biological and spiritual integrity. 相似文献
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In times of war, news media coverage of the plight of civilian casualties plays a critical role in shaping attitudes regarding war's human costs. We proposed that these attitudes may also be surreptitiously influenced by the commercial advertisements that often accompany this coverage. Specifically, we hypothesized that when newspaper articles pertaining to civilian victims of war are flanked by luxury ads, conservatives, relative to liberals, will subsequently exhibit less concern for these victims. This proposition was based on the notion that commercial ads, particularly those promoting luxury items, make salient the gap between the “haves” and the “have‐nots” and thereby, at least implicitly, threaten the legitimacy of the current socioeconomic system. Drawing upon system justification theory, we posited that this threat would lead individuals with stronger system‐justification tendencies (conservatives), relative to those more open to challenging the current system (liberals), to show greater tolerance for civilian war casualties in order to defend the system's integrity. Evidence consistent with this hypothesis was found in a quasi‐experimental study (n = 329). 相似文献
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The self-concept is usually seen as individualistic and/or social-relational, although sometimes it is viewed as ecological, temporal, or biological, constituting differing perspectives that are not well unified. The construct of self-expansiveness, which shows how the self-concept can expand from a narrow individualistic identification to wider social, ecological, temporal, and biological identifications to very expansive transpersonal identifications, is discussed as an integrating framework for understanding the self-concept. Three validation studies using the Self-Expansiveness Level Form Transpersonal Scale (Friedman, 1981), a measure of transpersonal self-expansiveness, were conducted with a known transpersonal/spiritual sample and student samples, comparing it with various spirituality measures across samples. Generally, results support that scale's construct and criterion validity and, consequently, the validity of the underlying construct of self-expansiveness. 相似文献
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Shirley G. Hosking Nigel V. Marsh Paul J. Friedman 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(4):205-216
The prevalence and determinants of depression in 79 elderly patients were assessed at 3 months poststroke. Predictor variables included gender, age, history of previous stroke, and hemispheric location of stroke. Indicator variables included two measures of physical functioning and seven aspects of cognitive functioning. Results indicated that 56% of patients had impairment in activities of daily living, and 39% reported clinically significant levels of depression. Prevalence of cognitive impairment ranged from 31% on a measure of basic cognitive functioning, through to 89% on a measure of complex attention. The results from a hierarchical multiple regression analysis showed that the combination of predictor and indicator variables explained 53% of the variance in depression scores. The three individual variables of history of previous stroke, physical functioning, and simple attention all made significant unique contributions to the variance in depression scores. The contribution of these findings to the ongoing debate concerning lesion location and poststroke depression is discussed. 相似文献