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181.
Fractal models for event-based and dynamical timers 总被引:2,自引:0,他引:2
Some recent papers proposed to distinguish between event-based and emergent timing. Event-based timing is conceived as prescribed by events produced by a central clock, and seems to be used in discrete tasks (e.g., finger tapping). Emergent or dynamical timing refers to the exploitation of the dynamical properties of effectors, and is typically used in continuous tasks (e.g., circle drawing). The analysis of period series suggested that both timing control processes possess fractal properties, characterized by self-similarity and long-range dependence. The aim of this article is to present two models that produce period series presenting the statistical properties previously evidenced in discrete and continuous rhythmic tasks. The first one is an adaptation of the classical activation/threshold models, including a plateau-like evolution of the threshold over time. The second one is a hybrid limit-cycle model, including a time-dependent linear stiffness parameter. Both models reproduced satisfactorily the spectral signatures of event-based and dynamical timing processes, respectively. The models also produced auto-correlation functions similar to those experimentally observed. Using ARFIMA modeling we show that these simulated series possess fractal properties. We suggest in conclusion some possible extensions of this modeling approach, to account for the effects of metronomic pacing, or to analyze bimanual coordination. 相似文献
182.
The aim of this study was to test different methods for distinguishing between two known timing processes involved in human rhythmic behaviours. We examined the implementation of two approaches used in the literature: the high-frequency slope of the power spectrum and the lag one value of the autocorrelation function, ACF(1). We developed another method based on the Wing and Kristofferson (1973a) model and the predicted negative ACF(1) for event-based series: the detrended windowed (lag one) autocorrelation (DWA). We compared the reliability and performance of these three methods on simulation and experimental series. DWA gave the best results, and guidelines are given for its appropriate use for identifying underlying timing processes. 相似文献
183.
To provide effective psychotherapy in cross-cultural situations, cultural issues need to be adequately addressed. We describe core concepts of cultural competence relevant for psychotherapists to consider. A contextualized approach to conducting cultural competent assessment and formulation is recommended, including the use of DSM-5 Outline for Cultural Formulation and Cultural Formulation Interview. We introduce a cultural competent framework to help therapists become more mindful of culturally relevant interactions in therapy. Finally, a three-tier system is proposed for the examination of psychotherapy models through a cultural lens. The concepts and framework described can be flexibly and pragmatically integrated into a therapist’s regular clinical work, increasing the therapy’s effectiveness across diverse populations. 相似文献
184.
Francesca Liga Sonia Ingoglia Cristiano Inguglia Alida Lo Coco Maria Grazia Lo Cricchio Pasquale Musso 《The Journal of psychology》2017,151(4):393-415
The present study aimed to investigate the relations among perceived parental psychological control (PPC), autonomy and relatedness, and negative outcomes during emerging adulthood in two cultural contexts: Italy and the USA. More specifically, we explored the mechanisms through which dependency-oriented PPC (DPPC) and achievement-oriented PPC (APPC) are associated with both internalizing and externalizing difficulties, focusing on the mediating role of autonomy and relatedness. Participants were 418 European-American and 359 Italian college students. Results indicated that the expressions of PPC with regard to dependency and achievement were related to emerging adults’ negative outcomes through different pathways, and these effects were moderated by the cultural group. The implications of the findings for future related empirical investigations and clinical interventions were discussed. 相似文献
185.
Matthew J. Mayhew Alyssa N. Rockenbach Nicholas A. Bowman Marc A. Lo Matthew A. Starcke Tiffani Riggers-Piehl Rebecca E. Crandall 《Review of religious research》2017,59(2):207-230
Evangelical students pose a distinctive set of challenges to higher education professionals. These students, though advantaged to some degree because of their Christian identity, commonly report feeling marginalized and silenced on college campuses. In light of these tensions, the purpose of this study was to examine how non-evangelical students come to an appreciative understanding of evangelical Christianity. Specifically, the research focused on the specific campus conditions and experiences that influence non-evangelical students’ appreciative attitudes toward evangelicals. Findings reveal distinct demographic, institution type, and academic major differences in those students’ perspectives toward their evangelical peers. Additionally, the results suggest that appreciative attitudes toward evangelicals are associated with non-evangelical students’ interfaith experiences, albeit to differing degrees based on self-identified worldview. Recognizing that the work of helping non-evangelical students develop an appreciative understanding of evangelicals is as complicated as it is challenging, especially in the collegiate context, the authors conclude with a discussion of implications for research and practice. 相似文献
186.
187.
Vezzoli C Bressi C Tricarico G Boato P Cattaneo C Visentin U Invernizzi G 《The Journal of analytical psychology》2007,52(1):89-108
We became interested in the clinical application of the Word Association Experiment (AE) when we decided to use Jung's theory of complexes in the psycho-diagnostic evaluation and treatment of patients applying to our Psychotherapy Out-patients Unit (Psychiatric Clinic, Milan University). In psychopathological situations, complexes with a particularly high emotional charge become autonomous and disturbing, inhibiting the ego's functions. The representations and affective states corresponding to these complexes become dominant, conditioning the expression of symptoms and the subject's relational modes. In this experimental study we started out from the basic theory that our psycho-therapeutic work should lead to a progressive change in the patient's initial complex set up. Jung's Word Association Experiment allows us to identify those words which indicate and stimulate a specific activation of the complexes for each subject via specific markers of complexes. We therefore decided to determine whether AE, administered during the first phase of clinical-diagnostic evaluation and after one year of treatment, revealed any changes occurring in the patients' set up of complexes. 相似文献
188.
Price MA Butow PN Lo SK Wilson J;Kathleen Cuningham Consortium for Research into Familial Breast Cancer 《Journal of genetic counseling》2007,16(5):635-644
Some women at increased familial risk of breast cancer experience elevated levels of cancer-specific worry, which can possibly
act as a barrier to screening, and may be a significant factor in decisions regarding risk-reducing surgery. The aim of this
study was to comprehensively examine predictors of cancer-specific worry in high risk women and to test a model which proposes
that perceived breast cancer risk mediates the impact of other factors on worry. 1,437 unaffected women from high risk breast
cancer families completed questionnaires and interviews. Path analysis was used to test the model of potential predictors
of cancer worry, including familial, personal and psychological variables, mediated via perceived cancer risk. Levels of cancer-specific
worry were generally low despite an average perceived risk of 50.3%. The goodness-of-fit of the proposed model was poor, explaining
only 9% of the variance for perceived risk and 10% of the variance for cancer specific worry. An alternative model of a direct
relationship between all of the predictor variables and cancer worry, explained 24% of the variation in cancer worry. General
anxiety, perceived risk, the stressful impact of recent cancer related events, a relative risk greater than 10, being closer
in age to the youngest breast cancer diagnosis in family, and knowledge of personal mutation status, all independently contributed
to cancer worry. Addressing general affective responses, experiences of recent cancer related events, in addition to education
about personal risk, should be considered in counselling women with elevated cancer worry. Risk perception appears to act
independently of other factors in its formulation and impact on cancer worry. Further research on the way in which women come
to perceive their risk is indicated.
The kConFab Psychosocial Group are (in alphabetical order of institution): Brain and Mind Institute, University of Sydney,
Australia (I Hickie) Department of Haematology and Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia (K-A
Phillips) Department of Medical Oncology, Prince of Wales Hospital, Randwick, Australia (B Bennett, B Meiser, K Tucker) Department
of Oncology, St Vincent’s Hospital, Melbourne, Australia (S-A MaLachlan) Department of Psychological Medicine, Royal North
Shore Hospital, St Leonards, Australia (C Tennant); Medical Psychology Research Unit, University of Sydney, Australia (P Butow,
M Price). 相似文献
189.
Human decisions cannot be explained solely by rational imperatives but are strongly influenced by emotion. Theoretical and behavioral studies provide a sound empirical basis to the impact of the emotion of regret in guiding choice behavior. Recent neuropsychological and neuroimaging data have stressed the fundamental role of the orbitofrontal cortex in mediating the experience of regret. Functional magnetic resonance imaging data indicate that reactivation of activity within the orbitofrontal cortex and amygdala occurring during the phase of choice, when the brain is anticipating possible future consequences of decisions, characterizes the anticipation of regret. In turn, these patterns reflect learning based on cumulative emotional experience. Moreover, affective consequences can induce specific mechanisms of cognitive control of the choice processes, involving reinforcement or avoidance of the experienced behavior. 相似文献
190.
Spatial reorientation: the effects of space size on the encoding of landmark and geometry information 总被引:3,自引:3,他引:0
The effects of the size of the environment on animals’ spatial reorientation was investigated. Domestic chicks were trained
to find food in a corner of either a small or a large rectangular enclosure. A distinctive panel was located at each of the
four corners of the enclosures. After removal of the panels, chicks tested in the small enclosure showed better retention
of geometrical information than chicks tested in the large enclosure. In contrast, after changing the enclosure from a rectangular-shaped
to a square-shaped one, chicks tested in the large enclosure showed better retention of landmark (panels) information than
chicks tested in the small enclosure. No differences in the encoding of the overall arrangement of landmarks were apparent
when chicks were tested for generalisation in an enclosure differing from that of training in size together with a transformation
(affine transformation) that altered the geometric relations between the target and the shape of the environment. These findings
suggest that primacy of geometric or landmark information in reorientation tasks depends on the size of the experimental space,
likely reflecting a preferential use of the most reliable source of information available during visual exploration of the
environment. 相似文献