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11.
The past two presidential campaigns have been filed with charges that the Democratic nominee “changed his mind” on various issues. The present research explored the possibility that negative evaluations may be produced by attitude change per se. In the first experiment, subjects responded to a stranger whose attitudes remained stable or who changed his attitudes over a period of two months vs. one year. Individuals who changed their attitudes were generally evaluated more negatively than those whose attitudes remained stable; the amount of time over which the change occurred produced no effect. A second expcriment sought to determine if the direction of change (toward increased or decreased similarity with subjects) influenced evaluations of a stranger. Attitude change which resulted in decreased similarity was rated most negatively. Even when a stranger changed his attitudes in the direction of greater similarity with subjects, however, he was still regarded as less decisive, less reliable, and a worse leader than was an individual with stable attitudes. This negative evaluation of attitude change was labeled the “waffle phenomenon”, and the implications for political candidates were discussed.  相似文献   
12.
It was hypothesized in a two-person situation that students would perform significantly better on intellectual tasks when paired with a liked other than when paired with a disliked other. In a laboratory experiment, 108 male undergraduates performed one of three types of intellectual tasks with an attitudinally similar or dissimilar partner or with a partner about whom the subject had no attitude information. Individuals paired with a similar partner felt affectively more positive than those paired with a dissimilar partner (p < .01). Individuals paired with a similar other performed significantly better on the tasks than those paired with a dissimilar partner (p < .01).  相似文献   
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14.

Suffering is a ubiquitous yet elusive concept in health care. In a field devoted to the pursuit of objective data, suffering is a phenomenon with deep ties to subjective experience, moral values, and cultural norms. Suffering’s tie to subjective experience makes it challenging to discern and respond to the suffering of others. In particular, the question of whether a child with profound neurocognitive disabilities can suffer has generated a robust discourse, rooted in philosophical conceptualizations of personhood as well as the academic and experiential expertise of practiced health-care professionals. The issue remains unresolved because it is difficult, perhaps impossible, to ever truly know an infant’s lived experience. But what if this is not the best question? What if instead of asking “can this infant suffer?” the discourse is broadened to ask “is there suffering here?” This latter question demands attention to patients’ subjective experiences of suffering, but also to the web of relationships that envelop them. Without losing sight of the importance of patients’ experiences, consideration of their relationships may elucidate the presence of suffering when the patients themselves are unable to provide the same clarity. In this essay, care ethics frames an examination of how suffering manifests in the loving and caring relationships that surround an infant with profound neurocognitive disabilities, changing those relationships and affecting the individuals within them. Exploring suffering through these relationships may offer clarity on the presence and content of suffering for infants with profound cognitive disabilities, in turn offering moral guidance for responding to suffering and supporting flourishing in this context.

  相似文献   
15.
Counterfactual and prefactual conditionals.   总被引:1,自引:0,他引:1  
We consider reasoning about prefactual possibilities in the future, for example, "if I were to win the lottery next year I would buy a yacht" and counterfactual possibilities, for example, "if I had won the lottery last year, I would have bought a yacht." People may reason about indicative conditionals, for example, "if I won the lottery I bought a yacht" by keeping in mind a few true possibilities, for example, "I won the lottery and I bought a yacht." They understand counterfactuals by keeping in mind two possibilities, the conjecture, "I won the lottery and I bought a yacht" and the presupposed facts, "I did not win the lottery and I did not buy a yacht." We report the results of three experiments on prefactuals that examine what people judge them to imply, the possibilities they judge to be consistent with them, and the inferences they judge to follow from them. The results show that reasoners keep a single possibility in mind to understand a prefactual.  相似文献   
16.
An integrated theory of the mind   总被引:23,自引:0,他引:23  
Adaptive control of thought-rational (ACT-R; J. R. Anderson & C. Lebiere, 1998) has evolved into a theory that consists of multiple modules but also explains how these modules are integrated to produce coherent cognition. The perceptual-motor modules, the goal module, and the declarative memory module are presented as examples of specialized systems in ACT-R. These modules are associated with distinct cortical regions. These modules place chunks in buffers where they can be detected by a production system that responds to patterns of information in the buffers. At any point in time, a single production rule is selected to respond to the current pattern. Subsymbolic processes serve to guide the selection of rules to fire as well as the internal operations of some modules. Much of learning involves tuning of these subsymbolic processes. A number of simple and complex empirical examples are described to illustrate how these modules function singly and in concert.  相似文献   
17.
Color realism and color science   总被引:8,自引:0,他引:8  
Byrne A  Hilbert DR 《The Behavioral and brain sciences》2003,26(1):3-21; discussion 22-63
The target article is an attempt to make some progress on the problem of color realism. Are objects colored? And what is the nature of the color properties? We defend the view that physical objects (for instance, tomatoes, radishes, and rubies) are colored, and that colors are physical properties, specifically, types of reflectance. This is probably a minority opinion, at least among color scientists. Textbooks frequently claim that physical objects are not colored, and that the colors are "subjective" or "in the mind." The article has two other purposes: First, to introduce an interdisciplinary audience to some distinctively philosophical tools that are useful in tackling the problem of color realism and, second, to clarify the various positions and central arguments in the debate. The first part explains the problem of color realism and makes some useful distinctions. These distinctions are then used to expose various confusions that often prevent people from seeing that the issues are genuine and difficult, and that the problem of color realism ought to be of interest to anyone working in the field of color science. The second part explains the various leading answers to the problem of color realism, and (briefly) argues that all views other than our own have serious difficulties or are unmotivated. The third part explains and motivates our own view, that colors are types of reflectances and defends it against objections made in the recent literature that are often taken as fatal.  相似文献   
18.
Eating disorders are serious mental illnesses affecting a significant proportion of women and a smaller number of men. Approximately half of those with an eating disorder (ED) will not meet the criteria for anorexia or bulimia nervosa, and will be diagnosed with an eating disorder not otherwise specified (EDNOS). Until recently, there were no recommended treatments for EDNOS. This article provides an overview of enhanced cognitive behavior therapy, a validated treatment for all forms of EDs.  相似文献   
19.
This review of the literature examines the effect of contextual variables (i.e., characteristics of the perpetrator and victims, observer characteristics) on perceptions of physical and psychological aggression in close relationships. Observers view physical aggression as more serious, harmful, abusive, and more deserving of punishment than psychological aggression, male aggression as more serious than female aggression, and aggression in committed, exclusive relationships as more serious than aggression in casual ones. Victims of psychological aggression, however, perceive it as more harmful than physical aggression and consider the effects to be longer-lasting. The disparity between observer and victim perceptions of physical and psychological aggression extends to mental health professionals, who tend to judge the severity of aggressive behaviors based on frequency and duration of the actions instead of perpetrator intent. This difference of opinion may influence the reporting of and intervention in physically or psychologically aggressive situations, and how these types of aggression are treated by legal professionals, especially if those legal professionals are informed about aggressive romantic relationships by third-party observers whose opinions of the situation differ from those of the victims.  相似文献   
20.
People perform leisure activities (LA) every day; pursuits that entail applying cognitive, physical and social abilities. As in old age, doing LA during early and middle adulthood is related to a reduced risk of dementias, probably by generating a cognitive reserve. As it is possible that a relation between doing LA and working memory (WM) efficiency exists in young adults, we assessed whether the diversity and frequency of LA are related to WM efficiency in this population. Ninety-three healthy young subjects solved the n-back task at two levels of difficulty (2, 3), and answered an LA questionnaire on the activities in which they had participated in the month prior to the experiment. Subjects were classified separately on their scores for (1) diversity (high/low) and (2) frequency (high/low) in order to test the relation between each variable and WM efficiency. Though no differences were found, a subsequent analysis of the average of diversity and frequency ratios of LA performance taken together-the diversity/frequency index-showed that low diversity plus low frequency was significantly associated with reduced WM efficiency at this age; results that suggest that frequent participation in diverse LA during youth is related to WM efficiency.  相似文献   
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