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171.
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
172.
William A. Stewart Robert M. Tipton Joel R. Butler 《Journal of personality assessment》2013,95(3):268-272
The purpose of this study was to determine if responses of like or dislike to Perceptual Reaction Test (PRT) designs — and thus, its ability to discriminate among criterion groups — were related to the connotative meaning of the designs. Seventy-four Ss were administered the PRT designs to which they responded on the traditional like-dislike alternatives as well as rating each design on a semantic differential. Correlations between the like-dislike dimension of the PRT designs and the semantic differential ratings of those designs indicated that when a S checks like for a design, he is expressing a positive evaluation of that design and probably sees it as less potent than those designs for which he checked dislike. Expression of like or dislike for a design appears to be inconsistently related to the activity dimension of meaning. 相似文献
173.
Gentiana Sadikaj Jennifer J. Russell D. S. Moskowitz Joel Paris 《Journal of personality assessment》2013,95(6):490-500
We hypothesized that affect dysregulation among individuals with borderline personality disorder (BPD) would involve greater persistence of negative affect between interpersonal events and heightened reactivity to stimuli indicating risk of rejection or disapproval, specifically perceptions of others’ communal (agreeable-quarrelsome) behaviors. A total of 38 participants with BPD and 31 controls collected information about affect and perceptions of the interaction partner's behavior during interpersonal events for a 20-day period. Negative and positive affect persisted more across interpersonal events for individuals with BPD than for controls. In addition, individuals with BPD reported a greater increase in negative affect when they perceived less communal behavior and a smaller increase in positive affect when they perceived more communal behavior in others. Findings indicate the importance of interpersonal perceptions in the affect dysregulation of individuals with BPD. 相似文献
174.
The ‘construct’ concept occupies a significant place in psychology and, yet its role is misunderstood. Psychologists think that theorising in the area of psychological testing involves conjuring constructs, which are operationally defined and measured via psychometric tests. However, the ‘construct’ concept is unworkable and laden with confused philosophical baggage accrued under the hegemony of logical empiricism, and its real function in psychology is obscured. Via an analysis of its history and logic, I expose its flawed conception of the relation between theoretical and observable concepts and the way in which it serves the myth of mental measurement. Finally, it is shown how the actual logic of theorising in science, which entails that theories are best inferred from relevant phenomena, not imaginatively constructed, oppugns this myth and promises to coordinate theoretical concepts with the phenomena to be explained. 相似文献
175.
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
176.
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
177.
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179.
Robert D. Pritchard Satoris S. Youngcourt Joel R. Philo David McMonagle José H. David 《人类行为》2013,26(1):61-83
To provide the most value to an organization, individuals must focus efforts on those outputs that have maximum value to the organization. However, the realities of the workplace are that information about performance and how individuals can add value to an organization is complex; that is, determining which activities to focus on is a fairly complex task because such information is nonlinear, whereby the importance of a certain activity may change depending on the level of performance at any given time. This article empirically examines whether providing complex, nonlinear feedback that reflects the complexities of the real world will result in a change in work outputs that reflect these nonlinearities. This article assesses whether employees can and do use complex feedback that reflects the complexity of the real world in the intended ways. In addition, this article examines whether individuals use feedback that includes priority information beyond feedback that reports on simple relative importance. Data were analyzed from 9 work units for time periods averaging a little over a year. Results indicate that, as predicted, when individuals have access to both complex, nonlinear priority information and simple, linear relative importance information, individuals can and do use the complex data in the intended way. 相似文献
180.
We examine emotion self-regulation and coregulation in romantic couples using daily self-reports of positive and negative affect. We fit these data using a damped linear oscillator model specified as a latent differential equation to investigate affect dynamics at the individual level and coupled influences for the 2 partners in each couple. Results indicate an absence of damping of relationship-specific affect within individuals in the sample. When both positive and negative affect are modeled at the individual level, the influence of positive affect is greater than that of negative affect. At the dyad level, the findings indicate coupled influences in both positive and negative affect between partners. With regard to positive affect, females are sensitive to their partners' overall displacement from average as well as their rate of change; males are sensitive only to their partners' displacement from average. For negative affect both partners are sensitive to each other's displacement from average, yet there are no coupled influences for rates of change in this dimension. We interpret the influence of the parameters on the system by examining the expected behavior of the system as a function of varying parameter values. 相似文献