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321.
Philosophical Studies - Some see concrete foundationalism as providing the central task for sparse ontology, that of identifying which concreta ground other concreta but aren’t themselves... 相似文献
322.
We recently demonstrated that transient covert attention increases the apparent contrast of a stimulus (Carrasco, Ling, & Read, 2004). Schneider (2006) proposes that the observed increase in apparent contrast is largely due to sensory interactions occurring between the precue a nd stimulus,rather than to attention. Specifically, hereports that cuing effects only occur at contrasts ne ar detection threshold, and that there a re confounding sensoryinteractions between the cue and stimulus at suprathreshold detection contrasts. Our response is twofold. First, we outline the key methodological differences between our original study and Schneider's that are likely to account for the different results, and explain how we had ruled out the sensory interaction explanation of the cue. Second, we directly test the prediction put forth by Schneider. If the effects were due to sensory interactions, reversing the luminance polarity of the precue in our paradigm should lead to differential cuing effects. We replicate one of the experiments of our original study and add a condition in which the cue luminance is either black or white. Our results replicated our previous findings-they showed an increase in apparent contrast to a high-contrast stimulus when it was precued. Moreover, we found that the black cue and the white cue had the same effect, thus ruling out the alternative explanation proposed by Schneider. Transient attention does alter contrast appearance. 相似文献
323.
Anxiety of childhood is a common and serious condition. The past decade has seen an increase in treatment-focussed research,
with recent trials tending to give greater attention to parents in the treatment process. This review examines the efficacy
of family-based cognitive behaviour therapy and attempts to delineate some of the factors that might have an impact on its
efficacy. The choice and timing of outcome measure, age and gender of the child, level of parental anxiety, severity and type
of child anxiety and treatment format and content are scrutinised. The main conclusions are necessarily tentative, but it
seems likely that Family Cognitive Behaviour Therapy (FCBT) is superior to no treatment, and, for some outcome measures, also
superior to Child Cognitive Behaviour Therapy (CCBT). Where FCBT is successful, the results are consistently maintained at
follow-up. It appears that where a parent is anxious, and this is not addressed, outcomes are less good. However, for children
of anxious parents, FCBT is probably more effective than CCBT. What is most clear is that large, well-designed studies, examining
these factors alone and in combination, are now needed. 相似文献
324.
Azucena Garcia-Palacios Hunter G Hoffman Todd R Richards Eric J Seibel Sam R Sharar 《Cyberpsychology & behavior》2007,10(3):485-488
The present case series with two patients explored whether virtual reality (VR) distraction could reduce claustrophobia symptoms during a mock magnetic resonance imaging (MRI) brain scan. Two patients who met DSM-IV criteria for specific phobia, situational type (i.e., claustrophobia) reported high levels of anxiety during a mock 10-min MRI procedure with no VR, and asked to terminate the scan early. The patients were randomly assigned to receive either VR or music distraction for their second scan attempt. When immersed in an illusory three-dimensional (3D) virtual world named SnowWorld, patient 1 was able to complete a 10-min mock scan with low anxiety and reported an increase in self-efficacy afterwards. Patient 2 received "music only" distraction during her second scan but was still not able to complete a 10-min scan and asked to terminate her second scan early. These results suggest that immersive VR may prove effective at temporarily reducing claustrophobia symptoms during MRI scans and music may prove less effective. 相似文献
325.
Rostral prefrontal cortex (PFC) is a large brain region, and is unusually large in humans. Therefore, it seems likely that it might support functions that are central to cognition. However, until recently, almost nothing was known about what these functions might be. The 'gateway hypothesis' places these abilities at the centre of human mental processing. It maintains that rostral PFC supports mechanisms that enable us to attend, to a novel degree, either to environmental stimuli, or by contrast, to self-generated or maintained representations (i.e. the 'thoughts in our head'). In this way, investigations into the functions of rostral PFC will reveal key new insights into how human and non-human mental abilities differ. 相似文献
326.
We explored how political beliefs and attitudes predict support for anti‐Muslim policies and extremist behavior in the United States following the 2015 Paris terrorist attacks. A large sample completed measures of authoritarianism, social dominance orientation (SDO), generalized prejudice, identification with all humanity (IWAH), perceptions of Muslim threat, and support for anti‐Muslim policies and behaviors. These measures accounted for 73% of the variance in moderate anti‐Muslim policies and 55% of the variance in extreme anti‐Muslim policies. Authoritarianism and SDO directly and indirectly predicted support for anti‐Muslim policies, with their effects partially mediated by generalized prejudice, IWAH, and perceptions of Muslims as threatening. Threat both mediated and moderated the relationship between authoritarianism and anti‐Muslim policies. A negative interaction between authoritarianism and perceptions of Muslims as threatening predicted moderate anti‐Muslim policies, but a positive interaction predicted extreme anti‐Muslim policies. A tentative explanation is offered. Perceptions of Muslim threat was consistently a powerful predictor of anti‐Muslim policies and willingness to engage in extremist behaviors targeting Muslims. Programs to combat anti‐Muslim prejudice should consider the role of threat‐related stereotypes in expressions of anti‐Muslim prejudice. 相似文献
327.
Scale and construal: How larger measurement units shrink length estimates and expand mental horizons
Scale can vary by requiring a different number of units to measure the same target. But what are the consequences of using fewer, larger units? We draw on past psychophysical research that shows how using fewer units reduces clutter in measurement, translating to shorter length estimates. Additionally, we propose that larger scale is associated with targets further from a person’s immediate experience (i.e., psychologically distant) and higher order mental representation. Evidence from Study 1 indicates that framing a target as further away causes it to be estimated as shorter because people use larger units to measure it compared to when the same target is framed as nearby. Two subsequent studies suggest that direct manipulation of larger (versus smaller) measurement scale produces not only shorter length estimates, but also more distal timing judgments (Study 2) and abstract mental representation (Study 3). Implications for scale and level of mental construal are discussed. 相似文献
328.
329.
Sam Baron Kristie Miller Jonathan Tallant 《Philosophy and phenomenological research》2021,102(2):281-301
Current debate in the metaphysics of time ordinarily assumes that we should be realists about time. Recently, however, a number of physicists and philosophers of physics have proposed that time will play no role in a completed theory of quantum gravity. This paper defends fictionalism about temporal thought, on the supposition that our world is timeless. We argue that, in the face of timeless physical theories, realism about temporal thought is unsustainable: some kind of anti-realism must be adopted. We go on to provide an argument against eliminativism about temporal thought. While it doesn't follow from this argument that fictionalism about temporal thought is true, we suggest that this nonetheless shows that fictionalism should be regarded as the preferred view. 相似文献
330.
Phenomenology and the Cognitive Sciences - I argue for an overlooked distinction between perceptual presence and volumetric content, and flesh it out in terms of predictive processing. Within the... 相似文献