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81.
This secondary data analysis tests the hypothesis that gender differences decline across adulthood. Six measures tapping 3 dimensions of affiliation and instrumentality were selected from the cross-sectional sample surveys of The Quality of American Life (1971) and Americans View Their Mental Health (1976). In both studies, approximately 2,200 adults who had been selected from probability samples of households in the continental United States were interviewed. For each measure, the variance explained by age, sex, and Age x Sex interaction terms was compared with the variance explained by age and sex alone. The addition of the interaction terms does not significantly increase the R2 for any of the measures, arguing against a late-life convergence of men's and women's orientations. Although the release from active parenting has been proposed as a basis for declining gender differentiation, limiting the analyses to respondents with children does not change this conclusion. 相似文献
82.
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84.
Motion, not masking, provides the medium for feature attribution 总被引:1,自引:0,他引:1
ABSTRACT— Understanding the dynamics of how separate features combine to form holistic object representations is a central problem in visual cognition. Feature attribution (also known as feature transposition and feature inheritance) refers to the later of two stimuli expressing the features belonging to the earlier one. Both visual masking and apparent motion are implicated in feature attribution. We found that when apparent motion occurs without masking, it correlates positively with feature attribution. Moreover, when apparent motion occurs with masking, feature attribution remains positively correlated with apparent motion after the contribution of masking is factored out, but does not correlate with masking after the contribution of apparent motion is similarly factored out. Hence, motion processes on their own provide the effective medium for feature attribution. Our results clarify the dynamics of feature binding in the formation of integral and unitary object representations in human vision. 相似文献
85.
Eddy KT Tanofsky-Kraff M Thompson-Brenner H Herzog DB Brown TA Ludwig DS 《Behaviour research and therapy》2007,45(10):2360-2371
Preliminary research suggests that pediatric overweight is associated with increased eating disorder pathology, however, little is known about which overweight youth are most vulnerable to eating disorder pathology. We therefore investigated 122 overweight treatment-seeking youth to describe eating disorder pathology and mental health correlates, and to identify psychopathological constructs that may place overweight youth at increased risk for eating disorder pathology. Youth participated in a comprehensive assessment of eating disorders, mood and anxiety disorders, general psychopathology, and risk variables involving semi-structured clinical interviews and self- and parent-report questionnaires prior to the initiation of weight-loss treatment. Ten youth met criteria for an eating disorder, and over one-third endorsed recent binge eating. Eating disorder pathology was associated with depressive and anxious symptoms (p's<0.001). Structural equation modeling indicated increased negative affect, teasing experience, and thin-ideal internalization, and decreased perfectionism were associated with increased eating disorder pathology. Findings corroborate earlier work indicating that eating disorder pathology is elevated and clinically significant in overweight treatment-seeking youth, bolstering the need for mental health assessment of such individuals. Cross-sectional modeling proposed key variables that relate to eating disorder pathology in overweight treatment-seeking youth, which following prospective replication, may inform the development of effective interventions for overweight and eating disorders. 相似文献
86.
History dependence of skeletal muscle force production: implications for movement control 总被引:3,自引:0,他引:3
Herzog W 《Human movement science》2004,23(5):591-604
In this study, we review existing evidence on the history dependence of skeletal muscle force production. Specifically, we investigate the steady-state forces following shortening or stretching of an activated skeletal muscle preparation and compare these forces to the corresponding steady-state forces obtained for purely isometric contractions at identical lengths. Force depression following shortening and force enhancement following stretch can reach values of almost 50% of the corresponding isometric reference force, and thus might affect movement control. We also show novel results on history-dependent effects for voluntary contractions in human skeletal muscles, thereby emphasizing that voluntary force production is affected by the contractile history of the target muscles. These results lead to the conclusion that history-dependent force production should be considered in models of movement control and voluntary force production. 相似文献
87.
We analyzed the relationship between U-shaped and monotonic-shaped masking functions, using both computer simulations of quantitative
models and experimental data. Our analysis revealed that quantitative models of backward masking predict that U-shaped masking
functions should appear for weak masks and monotonic masking functions should appear for strong masks. The models predict,
moreover, that for a fixed target and experimental task, as the mask changes it is possible to go from U-shaped to monotonic-shaped
masking functions. Significantly, the models predict that at each stimulus onset asynchrony between the target and the mask,
the U-shaped function must have weaker masking than the monotonic-shaped function. Contrary to the predictions of the models,
we show an experimental situation that generates masking functions that violate this prediction. 相似文献
88.
Brandon TH Herzog TA Juliano LM Irvin JE Lazev AB Simmons VN 《Journal of abnormal psychology》2003,112(3):448-456
R. Eisenberger's (1992) learned industriousness theory states that individuals display differing degrees of persistence depending on their history of reinforcement for effortful behavior. These differences may influence the development, maintenance, and cessation of addictive behaviors. In cross-sectional studies, E. P. Quinn, T. H. Brandon, and A. L. Copeland (1996) found that cigarette smokers were less persistent than nonsmokers, and R. A. Brown, C. W. Lejuez, C. W. Kahler, and D. R. Strong (2002) found that smokers who had previously abstained for 3 months were more persistent than those who had never quit. The present study extended these findings by using a prospective design. A pretreatment measure of task persistence (mirror tracing) completed by 144 smokers predicted sustained abstinence throughout 12 months of follow-up. Moreover, persistence predicted outcome independent of other significant predictors: gender, nicotine dependence, negative affect, and self-efficacy. 相似文献
89.
Gabriele Koch Annette Klein Kai von Klitzing Georg Romer Corinna Bergelt Heike Weschenfelder-Stachwitz Wolfgang Herzog Franz Resch Hans-Henning Flechtner Elmar Brähler 《Psychotherapeut》2013,58(6):576-582
Background
The diagnosis of parental cancer may destabilize the whole family, parents and children as well. The Hamburg children of somatically ill parents (COSIP) intervention supports parental skills and adaptation of children to the situation. There is currently no evidence for criteria to determine which family members should be involved in the COSIP intervention, predominantly the parents (parent setting), the children (child setting) or both (family setting).Aim of the study
Data from a multicentre study were analyzed with respect to the predominant intervention settings, the correlation between setting and aims of intervention as well as variables that predict the involvement of children in the intervention.Material and methods
A total of 203 documented cases were analyzed. Different variables that had been documented by the therapists were included in a regression analysis model in order to identify predictive variables.Results
In 142 cases the intervention was carried out in a specific intervention setting. In 57?% of the cases children were involved (32?% family setting and 25?% child setting). A systematic relationship between the reported intervention aims and the intervention setting was not detected. The most powerful predictor was the existence of emotional problems of children as reported by the child itself.Conclusions
Decision-making on intervention settings should therefore take the assessment of emotional symptoms of children by the means of age-appropriate self-reporting tools into consideration. Further investigations are needed to reveal variables concerning needs, motivation and capabilities of the family members as well as institutional conditions. 相似文献90.
Thaddeus A. Herzog David B. Abrams Karen M. Emmons Laura Linnan 《Psychology & health》2013,28(3):369-381
Abstract Most smokers are not motivated to quit. The transtheoretical model posits mechanisms (processes of change and pros and cons) by which smokers might increase their stage of readiness to quit. While cross-sectional relationships among the stages of change, processes of change, and pros and cons are well established, there is little evidence that processes of change and pros and cons predict progressive stage movements. This study uses data from a large worksite-based cancer prevention study (the Working Well Trial) to test the hypothesis that processes of change and the pros and cons of smoking predict progressive movement up the contemplation ladder, which is an alternative measure of motivation to quit smoking based on social cognitive theory. The results indicate that experiential processes of change promote increases in readiness to quit smoking. This study provides further evidence for the predictive validity of the contemplation ladder and sheds light on how unmotivated, nonvolunteer smokers can be motivated to consider cessation. 相似文献