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This study investigated how frequency demand and motion feedback influenced composite ocular movements and eye-hand synergy during manual tracking. Fourteen volunteers conducted slow and fast force-tracking in which targets were displayed in either line-mode or wave-mode to guide manual tracking with target movement of direct position or velocity nature. The results showed that eye-hand synergy was a selective response of spatiotemporal coupling conditional on target rate and feedback mode. Slow and line-mode tracking exhibited stronger eye-hand coupling than fast and wave-mode tracking. Both eye movement and manual action led the target signal during fast-tracking, while the latency of ocular navigation during slow-tracking depended on the feedback mode. Slow-tracking resulted in more saccadic responses and larger pursuit gains than fast-tracking. Line-mode tracking led to larger pursuit gains but fewer and shorter gaze fixations than wave-mode tracking. During slow-tracking, incidences of saccade and gaze fixation fluctuated across a target cycle, peaking at velocity maximum and the maximal curvature of target displacement, respectively. For line-mode tracking, the incidence of smooth pursuit was phase-dependent, peaking at velocity maximum as well. Manual behavior of slow or line-mode tracking was better predicted by composite eye movements than that of fast or wave-mode tracking. In conclusion, manual tracking relied on versatile visual strategies to perceive target movements of different kinematic properties, which suggested a flexible coordinative control for the ocular and manual sensorimotor systems. 相似文献
53.
Zvi Lothane MD 《International Forum of Psychoanalysis》2013,22(3):183-192
Abstract Some salient features of a Sullivanian perspective are given as a background for a discussion of the case of Anna. Lived experience is mentioned as of equal importance as fantasy. Technically, analytic inquiry in the form of questions is stressed. In his review of the case presentation, the author observes that too much emphasis is given to content, compared to form. He notes that the therapist does not report key transference and non-transference interactions with the patient and further suggests that the patient still has significant narcissistic problems. He suggests that it is time to confront the patient with her characterological ways of relating to the analyst. 相似文献
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Heungsun Hwang Kwanghee Jung Yoshio Takane Todd S. Woodward 《The British journal of mathematical and statistical psychology》2013,66(2):308-321
Multiple‐set canonical correlation analysis and principal components analysis are popular data reduction techniques in various fields, including psychology. Both techniques aim to extract a series of weighted composites or components of observed variables for the purpose of data reduction. However, their objectives of performing data reduction are different. Multiple‐set canonical correlation analysis focuses on describing the association among several sets of variables through data reduction, whereas principal components analysis concentrates on explaining the maximum variance of a single set of variables. In this paper, we provide a unified framework that combines these seemingly incompatible techniques. The proposed approach embraces the two techniques as special cases. More importantly, it permits a compromise between the techniques in yielding solutions. For instance, we may obtain components in such a way that they maximize the association among multiple data sets, while also accounting for the variance of each data set. We develop a single optimization function for parameter estimation, which is a weighted sum of two criteria for multiple‐set canonical correlation analysis and principal components analysis. We minimize this function analytically. We conduct simulation studies to investigate the performance of the proposed approach based on synthetic data. We also apply the approach for the analysis of functional neuroimaging data to illustrate its empirical usefulness. 相似文献
56.
This study examines the mediating role of media indignation, a set of negative emotional reactions to media coverage perceived to have partisan bias, between hostile media perception (HMP) and its consequences in behavioral willingness, more specifically, willingness to engage in discursive activities. It is examined together with a cognitive pathway through individuals' inference on opinion climate. Data from a web-based survey of university students (N = 696) on three controversial issues were analyzed. Findings showed that the degree of perceived partisan bias in mainstream media coverage on an issue was positively related to the intensity of media indignation and levels of incongruity between one's own opinion and perceived majority opinion. Media indignation in turn had a significant and positive effect on willingness to engage in discursive activities across all three issues, mediating the effect of HMP on behavioral willingness, whereas self-majority opinion incongruity did not. Theoretical implications of the findings are discussed. 相似文献
57.
Bethany R. Lee Jeongha Hwang Kerri Socha Tenly Pau Terry V. Shaw 《Journal of child and family studies》2013,22(4):447-459
This paper presents results from the transitioning youth to families intervention, which aimed to promote family care for youth served in group care programs in the child welfare system. The intervention was conducted in two counties in a Mid-Atlantic state. The effort encompassed administrative case review and family involvement meetings. We assessed the effect of the intervention in promoting placement in family settings within 12 months. We also explored other effects of the intervention identified by participants. Using propensity score matching with administrative data to compare one-year placement settings for the intervention counties and non-intervention counties, a higher rate of family reunification was identified for youth in the treatment counties. To provide a richer contextual understanding of the effects of the intervention, thematic analysis of open-ended comments from youth and caregiver participants was conducted. These resulting themes provided further understanding of the value of the intervention especially in the areas of planning for the transition, improving youth insight about placement options, and the importance of family involvement. Participants also made recommendations for how to enhance the intervention and promote the transition of youth from group care to family settings. Overall, the effect of the intervention in transitioning youth to family settings was nominal; however unanticipated benefits of engaging youth and family in the transition process were noted. From this evaluation, we provide suggestions for future research and the development of effort to transition youth from group care settings. 相似文献
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Mark S. Oordt PhD ABPP Professor of Psychology David A. Jobes PhD ABPP Vincent P. Fonseca MD MhH Steven M. Schmidt PhD 《Suicide & life-threatening behavior》2009,39(1):21-32
Remarkably little systematic research has studied the effects of clinical suicidology training on changing practitioner attitudes and behaviors. In the current study we investigated whether training in an empirically‐based assessment and treatment approach to suicidal patients administered through a continuing education workshop could meaningfully impact professional practices, clinic policy, clinician confidence, and beliefs posttraining and 6 months later. At the 6 month follow‐up we found that 44% of practitioners reported increased confidence in assessing suicide risk, 54% reported increased confidence in managing suicidal patients, 83% reported changing suicide care practices, and 66% reported changing clinic policy. These results suggest that a brief and carefully developed workshop training experience can potentially change provider perceptions and behaviors with a possible impact on clinical care therein. 相似文献
60.
Patrick Frottier MD Franz Koenig PhD Michaela Seyringer MD Teresa Matschnig MD Stefan Fruehwald MD 《Suicide & life-threatening behavior》2009,39(4):376-385
The “Viennese Instrument for Suicidality in Correctional Institutions” (VISCI) presented here is based on the results of a large case‐control study and on research on literature examining suicide prevention in general and in the prison population in particular. The aim of this study was to validate the properties of the VISCI to differentiate between suicides and nonsuicides. The sensitivity and specificity of the VISCI was tested in the files of 55 correctional suicides, and 110 controls. VISCI differentiated well between suicides and nonsuicides. The routine administration of the VISCI may help to direct the existing professional attention to inmates with the highest need. 相似文献