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111.
David B. Kaber Jennifer M. Riley Mica R. Endsley Mohamed Sheik-Nainar Tao Zhang Donald R. Lampton 《Military psychology》2013,25(4):330-344
We evaluated the efficacy of a computer-based situation awareness (SA) measurement system for training dismounted infantry SA in an urban terrain virtual reality (VR) simulation. Based on past research, we hypothesized that the SA measures would be sensitive to individual (squad leader) differences, and that the frequency of specific probes would reveal differences in critical SA requirements among scenarios. Three infantry squads performed multiple trials across two different scenarios. A confederate platoon leader posed probes to squad leaders during trials and experts made ratings afterward. Results revealed squad leaders had similar responses to probes, despite differences in combat experience. Analysis of probe frequency revealed different high priority SA elements and decisions for each scenario. The SA behavior and communication ratings revealed differences among squads, which trended with experience. Measures of SA were also consistent across the test scenario as a result of similar mission types and task difficulties. We discuss the implication of our findings for future research and theory within this area. 相似文献
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Although elders’ social isolation has been a topic of interest for public policies in the recent years, its prevention, specifically in relation to suicide prevention, has not stimulated the interest of researchers, yet. This paper present the results from a literature review aiming to identify the actions in elders’ suicide prevention. From the 425 initial papers identified on elders’ suicide prevention, only 57 describe “actions” in suicide prevention, 47 of which are actions targeting individuals, with psychological, psychiatric or psychotherapeutic interventions. Only eight researches integrate the social environment as a facilitator for suicide prevention. We discuss the particularity of this field, the limits of an individual-centred approach, and the interests of community, integrative interventions. 相似文献
114.
Alexandre J. S. Morin Christophe Maïano Herbert W. Marsh Michel Janosz Benjamin Nagengast 《Multivariate behavioral research》2013,48(2):157-201
Suppose PI and P2 are two competing discrimination procedures. 1Co com-, its are pare the relative discriminatory power of both procedures, test statistics are suggested for the hypothesis that Pl and P2 performed no better than, random assignment versus the alternative that P1 did significantly better than Pe. 相似文献
115.
Psychoendocrine and physical performance responses in male Tunisian rugby players during an international competitive season 总被引:1,自引:0,他引:1
The aim was to investigate a follow-up study based on hormonal, physical, and psychological parameters among rugby players who trained during a whole season interspersed with competitions on an international level. Fitness or reciprocally tiredness as well as competitive anxiety were evaluated, respectively, using the French Society for Sports Medicine (SFMS) and the sport competition anxiety test (SCAT) questionnaires. In this study, SFMS and SCAT scores increased respectively over the competitive season. The SFMS score revealed a state of relative tiredness at the end of the season, highlighted by a slight decrement in physical performances. The SCAT score changes are related to the competition context and therefore increased accordingly to the importance of the competition stake. We analyzed the corticotrope and the gonadotrope axis before (T(1)), and at the end of the national and international rugby season (T(2)). Training did not affect the resting salivary cortisol (Csal) levels, but induced a decrease in resting testosterone (Tsal) values, resulting in a dropped T/C ratio. Competition, in both periods (T(1)-T(2)), provoked a significant increase in Csal levels, but the Tsal responses depended on the match stake. Their concentrations increased when the competition generated an important stress and decreased when the psychological conditions remained relatively stable. SFMS is preferentially correlated with resting Csal levels and T/C values measured at 08:00 hr but not with Tsal. SCAT is highly correlated with competitive Csal and Tsal concentrations measured before and after the matches. 相似文献
116.
Pinto Y Olivers CN Theeuwes J 《Quarterly journal of experimental psychology (2006)》2008,61(8):1134-1142
Perceptual grouping is crucial to distinguish objects from their background. Recent studies have shown that observers can detect an object that does not have any unique qualities other than unique temporal properties. A crucial question is whether focused attention is needed for this type of grouping. In two visual search experiments, we show that searching for an object defined by temporal grouping can occur in parallel. These findings suggest that focused attention is not needed for temporal grouping to occur. It is proposed that temporal grouping may occur because the neurons representing the changing object elements adopt firing frequencies that cause the visual system to bind these elements together without the need for focused attention. 相似文献
117.
Aaron G Rizzieri Joseph L Verheijde Mohamed Y Rady Joan L McGregor 《Philosophy, ethics, and humanities in medicine : PEHM》2008,3(1):20
The left ventricular assist device was originally designed to be surgically implanted as a bridge to transplantation for patients
with chronic end-stage heart failure. On the basis of the REMATCH trial, the US Food and Drug Administration and the US Centers
for Medicare & Medicaid Services approved permanent implantation of the left ventricular assist device as a destination therapy
in Medicare beneficiaries who are not candidates for heart transplantation. The use of the left ventricular assist device
as a destination therapy raises certain ethical challenges. Left ventricular assist devices can prolong the survival of average
recipients compared with optimal medical management of chronic end-stage heart failure. However, the overall quality of life
can be adversely affected in some recipients because of serious infections, neurologic complications, and device malfunction.
Left ventricular assist devices alter end-of-life trajectories. The caregivers of recipients may experience significant burden
(e.g., poor physical health, depression, anxiety, and posttraumatic stress disorder) from destination therapy with left ventricular
assist devices. There are also social and financial ramifications for recipients and their families. We advocate early utilization
of a palliative care approach and outline prerequisite conditions so that consenting for the use of a left ventricular assist
device as a destination therapy is a well informed process. These conditions include: (1) direct participation of a multidisciplinary
care team, including palliative care specialists, (2) a concise plan of care for anticipated device-related complications,
(3) careful surveillance and counseling for caregiver burden, (4) advance-care planning for anticipated end-of-life trajectories
and timing of device deactivation, and (5) a plan to address the long-term financial burden on patients, families, and caregivers. 相似文献
118.
Guan Chong Ng Salina Mohamed Ahmad Hatim Sulaiman Nor Zuraida Zainal 《Journal of religion and health》2017,56(2):575-590
There is a lack of studies looking into religiosity and religious coping in cancer patient. In this cross-sectional study, we examined the religiosity using Duke University Religion Index, religious coping using Brief Religious Coping Scale, anxiety and depression based on Hospital Anxiety and Depression Scale among 200 cancer patients. The association between religiosity and religious coping with anxiety and depression was studied. The findings showed that subjects with anxiety or depression used more negative religious coping and had lower non-organization religiosity. Hence, measurements in reducing negative religious coping and encouraging religious activities could help to reduce psychological distress in cancer patients. 相似文献
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120.
Salama IM Turner S Edwards MG 《Quarterly journal of experimental psychology (2006)》2011,64(5):833-838
Research shows that action observation can prime execution. Evidence for this comes from experiments that show that action observation influenced temporal (e.g., speed) or spatial (e.g., peak grasp aperture or trajectory) aspects of executed movement. In the paper presented here, we for the first time show that observation can also prime executed action force. Following observation of force actions, participants executed grip-force responses using a dynamometer, and the data showed that their force was modulated by the condition observed. The findings of the study are discussed in terms of a likely cause of the force modulation effect and potential uses that the effect may have for strength rehabilitation. 相似文献