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201.
Economists define risk in terms of the variability of possible outcomes, whereas clinicians and laypeople generally view risk as exposure to possible loss or harm. Neuroeconomic studies using relatively simple behavioral tasks have identified a network of brain regions that respond to economic risk, but these studies have had limited success predicting naturalistic risk-taking. By contrast, more complex behavioral tasks developed by clinicians (e.g. Balloon Analogue Risk Task and Iowa Gambling Task) correlate with naturalistic risk-taking but resist decomposition into distinct cognitive constructs. We propose here that to bridge this gap and better understand neural substrates of naturalistic risk-taking, new tasks are needed that: are decomposable into basic cognitive and/or economic constructs; predict naturalistic risk-taking; and engender dynamic, affective engagement. 相似文献
202.
McFarland CP Glisky EL 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2011,18(6):633-652
Prospective memory (PM) among older adults has been shown to be influenced by frontal lobe (FL) function. An implementation intention (e.g., 'if situation X occurs, I will do Y') is a mnemonic strategy that may be particularly beneficial for individuals with low-FL function, as it has been suggested that implementation intentions produce heightened accessibility to environmental cues, and automatic triggering of previously formed intentions. The present study investigated the effectiveness of implementation intentions among 32 older adults characterized as possessing high- or low-FL function. Participants were placed into one of two conditions: Read-Only or Implementation Intentions, before being tested on a laboratory prospective memory task. Results indicated that older adults with high-FL composite scores demonstrated better PM than those with low-FL scores, and that those who made implementation intentions outperformed those who simply read task instructions. Of particular interest is the finding that high-FL participants benefited from implementation intentions, suggesting that implementation intentions may improve PM of all older adults regardless of FL function. Theoretical underpinnings of implementation intentions are discussed in the context of FL function. 相似文献
203.
Happiness is a key ingredient of well-being. It is thus reasonable to expect that valuing happiness will have beneficial outcomes. We argue that this may not always be the case. Instead, valuing happiness could be self-defeating, because the more people value happiness, the more likely they will feel disappointed. This should apply particularly in positive situations, in which people have every reason to be happy. Two studies support this hypothesis. In Study 1, female participants who valued happiness more (vs. less) reported lower happiness when under conditions of low, but not high, life stress. In Study 2, compared to a control group, female participants who were experimentally induced to value happiness reacted less positively to a happy, but not a sad, emotion induction. This effect was mediated by participants' disappointment at their own feelings. Paradoxically, therefore, valuing happiness may lead people to be less happy just when happiness is within reach. 相似文献
204.
Although proposed by bioecological models, there has been minimal empirical examination of whether children's individual differences moderate neighborhood effects on development. We used an urban community sample (8-12 years, N = 316) to examine interactions among neighborhood characteristics (problems and social organization) and children's temperament (fear, irritability and impulsivity) in predicting psychosocial adjustment. The main effects of neighborhood and temperament on outcomes were consistent with previous research. Findings show that development is challenging in disadvantaged neighborhoods whatever one's temperament, however, some effects of neighborhood were conditioned by temperament, particularly children's fear and irritability. Neighborhood problems were more strongly related to lower social competence for fearful and for less irritable children. Neighborhood problems were more strongly related to higher internalizing problems for low-fear children. Neighborhood social organization was more strongly related to greater social competence for low-fear children. Findings are discussed in relation to "diathesis-stress" and "differential responsiveness" models of temperament. 相似文献
205.
Bunmi O. Olatunji Kate B. Wolitzky-Taylor Craig N. Sawchuk Bethany G. Ciesielski 《Applied and Preventive Psychology》2010,14(1-4):1-24
Although worry is central to the diagnosis of generalized anxiety disorder (GAD), it is also commonly observed in other anxiety disorders. In this meta-analytic review, we empirically evaluated the extent to which worry is specific to GAD relative to patients with other anxiety disorders, those with other psychiatric disorders, and nonpsychiatric controls. A total of 47 published studies (N = 8,410) were included in the analysis. The results yielded a large effect size indicating greater severity/frequency of worry, meta-worry, and domains of worry among anxiety disorder patients v. nonpsychiatric controls (d = 1.64). In contrast to the many differences emerging from comparisons between anxiety disordered patients and nonpsychiatric controls, when anxiety disordered patients were compared to people with other psychiatric disorders they differed only on severity/frequency and not on meta-worry or domains of worry. A large effect size indicating greater severity/frequency of worry, meta-worry, and domains of worry among patients with GAD v. nonpsychiatric controls was also found (d = 2.05). However, differences between GAD and those with other psychiatric disorders also emerged for severity/frequency of worry. GAD was associated with greater worry difficulties than other anxiety disorders, which generally did not differ from those with other psychiatric disorders and each other. The implications of these findings for conceptualizing worry in GAD and other anxiety disorders, and the potentially moderating effects of age and gender are discussed. 相似文献
206.
William Craig 《Synthese》2008,164(3):321-332
A common aim of elimination problems for languages of logic is to express the entire content of a set of formulas of the language,
or a certain part of it, in a way that is more elementary or more informative. We want to bring out that as the languages
for logic grew in expressive power and, at the same time, our knowledge of their expressive limitations also grew, elimination
problems in logic underwent some change. For languages other than that for monadic second-order logic, there remain important
open problems. 相似文献
207.
Dr Craig J. Gonsalvez Judy Hyde Sandra Lancaster Julie Barrington 《Australian psychologist》2008,43(4):278-285
Abstract: There is universal recognition of the need for developmentally appropriate supervised clinical experience in professional psychology training. University clinics were established to provide a bridging function for postgraduate clinical psychology students, assisting the integration of psychological theory and research into real‐world clinical applications and professional identity development. The aim of training in university clinics is to provide opportunities for clinical practice and high‐quality supervision to monitor and shape clinical skills. The experiences gained in external practicum settings complement this initial training but cannot replace it. The recent introduction of Medicare rebates for psychology services has threatened the survival of university clinics because low‐cost psychological treatment is now available from experienced practitioners. This paper provides data on Australian university clinics collected before the introduction of Medicare. Concerted efforts are needed to protect university clinics in order to maintain standards required for accreditation of clinical psychology training programs. The potential impact of the loss of university training clinics is discussed and strategies to ensure their survival are suggested. 相似文献
208.
Craig Scandrett‐Leatherman 《Zygon》2008,43(4):909-923
The 1904 World's Fair in St. Louis sponsored both an International Congress of Arts and Sciences aimed at unity of knowledge and an anthropology exhibit of diverse peoples. Jointly these represented a quest for unifying knowledge in a diverse world that was fractured by isolated specializations and segregated peoples. In historical perspective, the Congress's quest for knowledge is overshadowed by Ota Benga who was part of the anthropology exhibit. The 1904 World's Fair can be viewed as a Euro‐American ritual, a global pilgrimage, which sought to celebrate the advances and resolve the challenges of modernity and human diversity. Three years later Afropentecostalism dealt with these same issues with different methods and rituals. This ritual system became the most culturally diverse and fastest growing religious movement of the twentieth century. I suggest that the anthropological method of Frank Hamilton Cushing, the postcritical epistemology of Michael Polanyi, and the Afropente‐costal ritual movement initiated by William J. Seymour are all attempts to develop a postmodern epistemology that is simultaneously constructive, focused on discerning reality, and broad enough to allow for human consciousness and diverse human communities. I explore this confluence of scientific and participatory epistemology through six theses. 相似文献
209.
210.
Broman-Fulks JJ Green BA Olatunji BO Berman ME Arnau RC Deacon BJ Sawchuk CN 《Assessment》2008,15(2):188-203
Anxiety sensitivity has been implicated as a risk factor for the development and maintenance of panic and other anxiety disorders. Although researchers have generally assumed that anxiety sensitivity is a dimensional, rather than categorical, variable, recent taxometric research has raised questions concerning the accuracy of this assumption. The present study examined the latent structure of anxiety sensitivity by applying four taxometric procedures (MAXEIG, MAXCOV, MAMBAC, and L-Mode) to data collected from two large nonclinical samples (n = 1,025 and n = 744) using two distinct measures of anxiety sensitivity (Anxiety Sensitivity Profile and Anxiety Sensitivity Index-Revised). In contrast to previous taxometric analyses of anxiety sensitivity, results of the present research provided convergent evidence for a latent anxiety sensitivity dimension. Several potential explanations for the discrepancy between these findings and those of previous research are discussed, as well as the implications of these findings for the conceptualization and measurement of anxiety sensitivity. 相似文献