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91.
Cristina Botella Veronica Guillen Rosa M. Banos Azucena García-Palacios Maria J. Gallego Mariano Alcaniz 《Cognitive and behavioral practice》2007,14(1):46-57
This work presents a self-help, Internet-based telepsychology program for the treatment of public speaking fears. The system is comprised of 3 parts: The assessment protocol gives the patient information about his or her problem (i.e., amount of interference it creates in his or her life, severity, degree of fear and avoidance). The system also includes a structured treatment protocol, organized into separate blocks, reflecting the patient’s progress. This ensures that the patient does not skip any steps in the treatment (something quite common in traditional self-help manuals), which provides more control over the process. The treatment protocol is a cognitive-behavioral program that provides exposure to the feared situation using videos of real audiences. Finally, the control protocol assesses treatment efficacy, not only at closure, but also at every intermediate step. Efficacy data from 12 social phobia patients are presented from pretreatment to posttreatment and at 1-month follow-up. These preliminary data support the efficacy of our telepsychology program for the treatment of fear of public speaking. This is a preliminary work in a promising research path that examines the possibility of using the Internet for the treatment of psychological disorders. 相似文献
92.
Stephan de la Rosa Michael Gordon Bruce A. Schneider 《Attention, perception & psychophysics》2009,71(3):451-462
Research has shown that the visual system’s sensitivity to variations in luminance (visual contrast) within a particular area of the retina is affected in a bottom-up fashion by the ambient contrast levels in nearby regions. Specifically, changes in the ambient contrast in areas surrounding the target area alter the sensitivity to visual contrast within the target area. More recent research has shown that paying attention to the target or target area modulates contrast sensitivity, suggesting a top-down influence over contrast sensitivity that is mediated by attention. Here we report another form of top-down influence over contrast sensitivity that is unlikely to be mediated by attention. In particular, we show that knowledge and/or expectations about the levels of visual contrast that may appear in upcoming targets also affect how sensitive the observer is to the contrast in the target. This sort of knowledge-driven, top-down contrast sensitivity control could be used to preset the visual system’s contrast sensitivity to maximize discriminability and to protect contrast-sensitive processes from a contrast overload. Overall, our results suggest that existing models of contrast sensitivity might benefit from the inclusion of top-down control mechanisms. 相似文献
93.
Carmelo Ardito Paolo Buono Maria Francesca Costabile Rosa Lanzilotti Antonio Piccinno 《Knowledge, Technology, and Policy》2009,22(1):79-86
Interaction design of mobile systems is a complex activity because it requires considering new usability and user experience
aspects in order to exploit the peculiar characteristics of mobile devices, such as their pervasive and ubiquitous nature.
This paper discusses issues about designing, developing and evaluating mobile systems. Italy has a rich cultural heritage,
and the focus in this study is on the design of systems that enable interactive exploration of historical sites, not only
for enhancing the user experience but also for learning purposes. The experience of the researchers at the Interaction, Visualisation
and Usability lab, University of Bari, Italy, in designing a mobile learning system, called Explore!, which supports young
students learning ancient history during a visit to archaeological parks, is reported. The evaluation of Explore! through
systematic field studies shows that the adopted approach is able to transform the visit to archaeological parks into a more
complete and culturally rich experience. 相似文献
94.
Projective expected utility 总被引:1,自引:0,他引:1
Pierfrancesco La Mura 《Journal of mathematical psychology》2009,53(5):408-414
Motivated by several classic decision-theoretic paradoxes, and by analogies with the paradoxes which in physics motivated the development of quantum mechanics, we introduce a projective generalization of expected utility along the lines of the quantum-mechanical generalization of probability theory. The resulting decision theory accommodates the dominant paradoxes, while retaining significant simplicity and tractability. In particular, every finite game within this larger class of preferences still has an equilibrium. 相似文献
95.
Scholz U La Marca R Nater UM Aberle I Ehlert U Hornung R Martin M Kliegel M 《Neurobiology of learning and memory》2009,91(1):89-92
Acute stress has been found to have negative and implementation intentions (IIs) to have positive effects on cognitive performance. This study was the first to examine the effects of IIs on executive action control under acute psychosocial stress. Forty-two male subjects aged 21-39 years were randomly assigned to the Trier Social Stress Test (TSST) versus a rest condition. In addition, the instruction to the executive task (a go no-go task) was manipulated (IIs versus standard instruction). After the stress test, a dual-task procedure including a go no-go task was conducted. The TSST resulted in increases in cortisol response, heart rate and state anxiety compared to the rest condition. Acute stress significantly impaired go no-go performance, but only in the group without IIs. We conclude that under acute stress conditions executive functioning is reduced, but the use of IIs can be an effective strategy to overcome this negative effect. 相似文献
96.
Rosa A. Hoekstra Meike Bartels Marieke van Leeuwen Dorret I. Boomsma 《Developmental science》2009,12(6):1041-1053
The etiology of individual differences in general verbal ability, verbal learning and letter and category fluency were examined in two independent samples of 9‐ and 18‐year‐old twin pairs and their siblings. In both age groups, we observed strong familial resemblance for general verbal ability and moderate familial resemblance for verbal learning, letter and category fluency. All familial resemblance was explained by genetic factors. There was significant covariance among the tests, which was stronger in magnitude in the adolescent cohort. The covariance was mainly explained by genetic effects shared by subtests, both in middle childhood and in late adolescence. In addition to a shared set of genes that influenced all phenotypes, there were also genetic influences specific to the different verbal phenotypes. 相似文献
97.
98.
Drawing on Gollwitzer's deliberative–implemental mindset distinction (P. M. Gollwitzer, 1990), it was predicted that people who are deliberating on different actions or goals would be more cautious or more realistic in their expectation of success in subsequent tasks than people who are going to implement a chosen action or goal. Participants were given a choice between different test-materials. They were interrupted before (deliberative) or immediately after decision-making (implemental). They then either had to choose between various levels of difficulty within one type of task (Experiment 1) or they had to predict their own future performance (Experiment 2). The results showed that deliberative participants preferred less difficult tasks and overestimated their probability of success less than implemental participants. In addition, deliberative participants referred more than implemental participants to their past performance when selecting levels of difficulty or predicting future performance; however, the two groups did not differ in actual performance. Taken together, the findings suggest that people are more realistic in a deliberative than in an implemental state of mind. The present studies extend prior research because for the first time they document mindset effects on peoples' estimates concerning their future performance in the achievement domain. 相似文献
99.
100.