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51.
Health-risk communications frequently target self-efficacy in order to encourage adaptive responses. Research has also indicated that self-affirmation may be a useful supplementary or alternative intervention technique. This study compared the effects of self-efficacy, self-affirmation and a combination of these techniques for two risk messages. Young British females (N?=?677) read about ultraviolet light and skin cancer or skin ageing (‘photoageing’) and were randomly assigned to a single intervention (self-affirmation/self-efficacy), the combined intervention or no intervention. The efficacy intervention led to greater message acceptance and perceived risk in both the cancer and photoageing conditions, while the only main effect of self-affirmation was on acceptance of the photoageing message. However, self-affirmation moderated the effect of efficacy information. For photoageing messages, efficacy information was associated with greater message acceptance only amongst self-affirmed participants, but the opposite occurred for skin cancer messages. Although these findings should be interpreted cautiously, they imply that health promoters should select efficacy information if only one intervention is used but that self-affirmation can influence responsiveness to efficacy interventions for particular messages.  相似文献   
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Research reports on the long-term sequelae of physically abused children have not produced a coherent profile that can be used to identify this population as a distinct diagnostic group. To define the specific combination of symptomatology and personality characteristics of this group, 41 physically abused children, referred by the state Child Protection Officers were interviewed using the Attachment Style Classification Questionnaire, the Children's Depression Inventory, the Trait Anxiety Inventory, and the Child Suicidal Potential Scales. The results were compared with those of 38 neglected children and 35 nonabused, nonneglected children. The physically abused children showed an avoidant attachment style, specific depressive and suicidal symptomatology, high anxiety level, high aggression level, and primitive defense mechanisms. A discriminant data analysis identified 92.8% of the participants in terms of their diagnostic status. Our study suggests that an emotional and behavioural cluster of characteristics may differentiate physically abused children from neglected and nonmaltreated children. This cluster highlights the severity of induced developmental damages in the short and long-term.  相似文献   
54.
This paper argues that the predictive validity of the theories of reasoned action and planned behaviour could be enhanced by considering key ideas from goal theories. In particular, goal theories highlight the importance of: (a) construing action as a process of behavioural selection designed to achieve actors’ goals, (b) assessing the extent to which people have planned how to perform action sequences implied by their goals (c) investigating goal conflict in order to understand intention-behaviour discrepancies (d) examining contextual variations in goal salience to account for the dynamics of choice, (e) using intention stability to index the prioritization of goals, and (f) analyzing the content of the goals underlying attitudes and intentions. Suggestions are made about self-report measures and computations that would permit greater use of these ideas in future research.  相似文献   
55.
In 1994, a clinic for cancer risk counseling was opened at Hadassah University Hospital in Jerusalem. Most of the counselees have been women who had breast cancer and/or a relative with breast cancer. In order to evaluate the effect of this counseling on women's knowledge and perceptions regarding the risks for breast cancer, a questionnaire was given before and after the counseling session to 60 healthy women who came to the clinic because they have relatives with breast cancer. According to the genetic counselors' estimations, most of these women had a significantly increased risk (compared to the general population) of developing cancer. Before counseling, the women overestimated the population risk for breast cancer, the contribution of heredity to morbidity of cancer, and their own risks to get cancer. After counseling session, they gave reduced estimates, closer to the real ones. The subjective perceptions regarding these risks were reduced after counseling, except for the perceptions regarding their relativerisks which have not changed after the counseling. About 90% of the women who came to the clinic wanted to be tested for genetic predisposition to cancer. For most of these women, the expectations that the test can rule out a genetic predisposition to cancer became more realistic after the counseling. The option to first test an affected relative was offered to all families, and a test was actually conducted in 75% of the families.  相似文献   
56.
Perceptual organization is thought to involve an analysis of both textural discontinuities and perceptual grouping. In earlier work, we found that textural discontinuities were detected normally even when visual attention was engaged elsewhere. Here we report how perceptual grouping is affected when visual attention is engaged by a concurrent visual task. To elicit perceptual grouping, we used the Gestalt demonstrations of grouping on the basis of proximity and of similarity. Four tasks were investigated, some requiring the observer to discriminate between horizontal and vertical grouping, and some requiring the observer to merely detect the presence or absence of grouping. Visual attention was engaged at the center of the display by a form identification task. The detection of a textural discontinuity served as a control task. Concurrent form identification conflicted with all four grouping tasks, resulting in a significant reduction of grouping performance in each case. No performance reduction was observed when either form identification or grouping discrimination was combined with the detection of a textural discontinuity. These results suggest that perceptual grouping and form identification compete for visual attention, whereas the detection of a textural discontinuity does not.  相似文献   
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Data in the literature indicate that conditioned responses (CRs) generated by repeated pairing of conditional stimulus (CS) with administration of a neurotropic drug may resemble its unconditional effects or they may be opposite in direction; furthermore, the CRs may change as such pairings are continued. In explanation, it is hypothesized that as in conditioning of physiological reflexes, a CS repeatedly paired with administration of a neurotropic drug eventually comes to activate central“processing” events that are evoked by the“stimulus” properties of the drug,i.e., the effects of the drug at receptor sites inside or outside the pia mater which lie in the afferent arms of“reflex” neural circuits; or, the CS comes to activate central processing events that are evoked by centripetal feedback responses to the effects of the drug at receptor sites in the processing or efferent arms of reflex neural circuits. Depending on the receptor site action of the drug, the conditioned autonomic and/or neuromuscular responses that are observed may be in the same direction as, or opposite in direction to the unconditioned effects of the drug. With continued pairings of CS and drug, the unconditioned processing events evoked by the stimulus properties of the drug, and hence the CRs also, change in consequence of compensatory (sometimes“overshooting”) biochemical alterations proximal to the receptor site of action of the drug, induced by negative or positive neuronal feedback mechanisms. These concepts are utilized in a theory of opiate addiction and relapse.  相似文献   
59.
The continuum of solutions constituting the bargaining set for n-person games in characteristic function form (n ≥ 4) reflects various degrees of determinateness to form a coalition, different requirements of stability, or different levels of competition among the players. At one end of this continuum is the kernel solution. A new solution, called the competitive bargaining set, constitutes the other extreme. It incorporates the concept of a multiobjection, which is based on the idea that threats may be perceived and considered simultaneously even though their simultaneous implementation is impossible.For the simple homogeneous majority games [n ? 2, 1, 1, …, 1] the competitive bargaining set (1) yields unique outcomes for each coalition structure, (2) coincides with von Neumann and Morgenstern's main simple solution for certain coalition structures, and (3) converges to Shapley value as n → ∞ when the grand coalition forms.Mathematical and experimental implications of the new solution are discussed briefly.  相似文献   
60.
The purpose of this research was to determine the specific behaviors and cues which 104 assessors perceived as indicating the presence of psychological variables shown to be related to competent job behavior. The cue systems utilized were found to be reminiscent of theory Y conceptions of effective job behavior. Implications of the lack of correlation of cue utilization with assessor characteristics are discussed.  相似文献   
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