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991.
Bowen's differentiation of self construct is examined through a test in two studies of the hypothesis that people select partners at similar levels of differentiation of self. One study used a sample of married couples and the other a sample of dating and engaged couples. The studies used different instruments for determining differentiation of self. Three data analysis procedures—correlations, t-tests, and the degree of similarity procedure—provided conflicting evidence for the similarity hypothesis. Results are discussed as they pertain to statistical analysis issues using related individuals and to Bowen family systems theory and the use of this theory in clinical practice.  相似文献   
992.
The effect of basic motion structures on perceptual grouping was studied with five-dot motion patterns. Four basic motion structures were identified in terms of proximal common and relative motion vectors. In a forced-choice situation, the observers had to decide to which of two pairs of dots a fifth critical dot seemed to belong. Thus, one of two possible three-dot units was chosen by the observers. The two possible three-dot units defined different motion structures, and the chosen motion structure was considered to have stronger grouping power than the alternative structure had. It was found that parallel common motions (perceived translation in the plane) had the strongest grouping power; these were followed by circular common motions (perceived rotation in the plane), concurrent relative motions (perceived translation in depth), and, finally, parallel relative motions (perceived rotation in depth). The results also suggested effects of proximity and orientation of axis of rotation. It is further argued that the relative grouping power of the motion structures could not solely be interpreted in terms of changes of directions and distances between the dots. Instead it is suggested that vector analysis is a fundamental perceptual activity and that basic motion structures determine grouping power.  相似文献   
993.
The Gaussian, or “normal,” distribution is routinely used to model distributions of subjective quantities. This practice rests on a trust in the central limit theorem, yet this theorem does not cover the case of a mixture of Gaussian distributions with different standard deviations, which yields a distribution that is heavier tailed than the Gaussian. In psychophysical judgment experiments, this may result, for example, from fluctuating or interindividually varying attention. Two candidates for describing this commonly encountered type of distribution are the logistic distribution and thet distribution with a small number of degrees of freedom. In reanalyses of experimental data on three-category loudness comparisons, as well as in a Monte Carlo simulation,t(4) was found to model the underlying mixed inter- and intraindividual-distribution of subjective loudness differences quite satisfactorily.  相似文献   
994.
This paper documents a very pervasive underconfidence bias in the area of sensory discrimination. In order to account for this phenomenon, a subjective distance theory of confidence in sensory discrimination is proposed. This theory, based on the law of comparative judgment and the assumption of confidence as an increasing function of the perceived distance between stimuli, predicts underconfidence—that is, that people should perform better than they express in their confidence assessments. Due to the fixed sensitivity of the sensory system, this underconfidence bias is practically impossible to avoid. The results of Experiment 1 confirmed the prediction of underconfidence with the help of present-day calibration methods and indkated-a-good quantitative fit of the theory. The results of Experiment 2 showed that prolonged experience of outcome feedback (160 trials) had no effect on underconfidence. It is concluded that the subjective distance theory provides a better explanation of the underconfidence phenomenon than-do previous accounts in terms of subconscious processes.  相似文献   
995.
The present study concerns the distinctness of the 3-D shape-induced on flat displays by spacemodulated illumination (“shape from shading”). The displays that we used varied in structure, hue contrast, lightness contrast, and in the number of reflectance edges present. The modulations of the illumination were a square-wave grating, a gradual modulation (a blurred grating), and an “O’Brien modulation,” which combines an edge and a gradient. The displays were compared, using the paired comparison method, as to the distinctness of the perceived 3-D form. The results showed that the structure and chromatic color of the display were important factors facilitating the distinctness of the induced 3-D shape under all the modulation conditions. The results are discussed in relation to the “vector model” for color constancy, proposed in earlier papers.  相似文献   
996.
Reaction time (RT) and movement time (MT) are measured in two conditions, a key-press and a key-release condition. The latter makes a greater demand on perceptual feedback than the former. RT increases in the key-release condition and a fraction of MT denoted key-press time (KT) decreases in the key-press condition. It is argued that KT of a response button in the simple reaction-time experiment may serve as a proper measure of the motor component. The foreperiod prior to onset of the reacting stimulus affects RT, KT, and MT, suggesting that preparatory set or expectancy influences both the perceptual and motor components of simple human performance. The results indicate that the relation of RT and MT depends upon methodological conditions.  相似文献   
997.
Some of the theoretical tenets of family therapy such as emphasis on the activation and utilization of existing family resources and the importance it accords to context appear to have a good fit with primary health care's commitment to empowering individuals in their struggle against ill health and the circumstances in which it occurs. This paper explores the possibility of teaching a problem-solving approach to family therapy to nurses in a South African primary health care system. Training consisted of conceptual, pragmatic, and self-growth exercises, and trainees' conceptual and performance skills were compared to the skills of a group of untrained nurses.We thank Bukelwa Selema, co-trainer on the program, for her contributions to joining effectively with the nurses and enriching the experiential process. We also thank Dr. P.J. Beukes, Dr. J.H. Olivier, Dr. G.M. Louw, Matron L.C. Langley and other staff in the Soweto primary health care system for their support. In particular, we are grateful to nursing sisters Martha Nkoane and Millicent Matomela, who roleplayed clients on the videotaped training modules. We are also grateful to Edcent Williams, who was one of the videotape raters, and Mike Spruce, Ricky Snyders, Nico Cloete, Ricky Mauer, and Brenda Radebe for their inputs at various stages of designing and implementing the programme.  相似文献   
998.
This article reviews the emergence of the original family therapy model for treating substance abuse developed by Duncan Stanton and Thomas C. Todd, its original successes, and the subsequent awareness of some shortcomings as it was used in a variety of settings in the United States and other countries. Also outlined are newer approaches that have been important influences on the model and thoughts on how these new ideas can be integrated in a pragmatic fashion into a workable overall model of practice.  相似文献   
999.
This study looks at experienced emotional closeness among family members using a projective measure, the Family Paper Sculpture. Results support the hypothesis that, in a non-clinical population, experiences of extreme closeness and extreme distance may be different manifestations of the same underlying process. Some support is found for the hypothesis that families in which relationships are experienced as very close or very distant at one point in time may experience those same relationships as extreme in the opposite direction at another point in time. Global coding of taped family interactions supports the hypothesis that extremes of experienced closeness are associated with more conflict, less ability to resolve differences, and less warmth and support among family members. It is suggested that the experience of being very close, varying through time with the experience of being very distant, may be associated with disappointed attempts to achieve closeness with autonomy.worked on this research while a graduate student in psychology at the University of Houston-Clear Lake.David C. Bell, PhD, completed work on this report while at Texas A & M University. He is presently working on a book about connection and dependency.The studies reported here were supported by grants from the National Institute for Mental Health and the Hogg Foundation for Mental Health. The authors would like to thank David Gutterman, Sheila Jones, Judy Nunn, and Theresa Rourke for coding the global scales.  相似文献   
1000.
Following disclosure of father-child sexual abuse, family members are faced with significant dilemmas related to the abuse disclosure and to the future of familial relationships. The resolution of these dilemmas has an impact on the resulting family structure as well as the therapist's stance, the therapeutic process, and therapeutic goals. This paper presents clinical issues that arise in relation to father/perpetrator and mother responses to the dilemmas they face following their child's disclosure of abuse. Clinical case examples are used to illustrate several resolutions that families reach following disclosure of abuse. The cases illustrate the systemic functioning of families and the impact that family members' decisions have on the therapeutic process.This paper was sponsored in part by a grant from the U. S. Department of the Navy. Names of clients were changed by the author to protect their identities.  相似文献   
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