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241.
Forstmann BU Ridderinkhof KR Kaiser J Bledowski C 《Cognitive, affective & behavioral neuroscience》2007,7(4):286-296
A tool that is commonly used to investigate selection among different alternatives in a changing environment is the task-switching
paradigm. Functional neuroimaging has pointed out a role for the posterior medial frontal cortex and the posterior parietal
cortex in the voluntary selection of task sets. In the present study, we set out to investigate the temporal dynamics of these
agency-related processes (in task choice vs. no-choice conditions) using event-related brain potentials (ERPs). The results
revealed agency-related modulations of a series of ERP components, including (1) an early parieto-occipital activation, taken
to reflect the evaluation of choice versus no choice; (2) a subsequent medial frontal expression of the voluntary selection
between task sets; (3) a CNV-like sustained negativity in preparation for the target; (4) a target-induced N210—P210 complex,
taken to reflect early sensory-perceptual processing; and (5) a target-induced P3, associated with the evaluation of the stimulus
and its designated response vis-à-vis the chosen versus competing task sets. Together, these results indicate that the opportunity
to choose between tasks invokes activity originating from the medial frontal cortex, associated with voluntary task set selection,
but also activation at different time points in a number of other brain areas, not necessarily captured by functional neuroimaging. 相似文献
242.
Jennifer A. Silvers Jocelyn Shu Alexa D. Hubbard Jochen Weber Kevin N. Ochsner 《Developmental science》2015,18(5):771-784
This study used functional MRI (fMRI) to examine a novel aspect of emotion regulation in adolescent development: whether age predicts differences in both the concurrent and lasting effects of emotion regulation on amygdala response. In the first, active regulation, phase of the testing session, fMRI data were collected while 56 healthy individuals (age range: 10.50–22.92 years) reappraised aversive stimuli so as to diminish negative responses to them. After a short delay, the second, re‐presentation, phase involved passively viewing the aversive images from the reappraisal task. During active regulation, older individuals showed greater drops in negative affect and inverse rostrolateral prefrontal‐amygdala connectivity. During re‐presentation, older individuals continued to show lasting reductions in the amygdala response to aversive stimuli they had previously reappraised, an effect mediated by rostrolateral PFC. These data suggest that one source of heightened emotionality in adolescence is a diminished ability to cognitively down‐regulate aversive reactions. 相似文献
243.
Zusammenfassung
Bereits 1681 beklagte sich ein englischer Arzt in einem Brief über Patienten, die ohne jedes Ma? jene lieben, die sie alsbald
ohne jeden Grund hassen würden. Weiterhin seien pl?tzliche Ausbrüche von Wut, Schmerz, Angst oder ?hnlichen Emotionen zu beobachten.
Mit dieser frühen Beschreibung typischer Borderline-Symptome wird die Darstellung der Entwicklung der Theorie der Borderline-St?rung
von den Anf?ngen bis heute eingeleitet. Vor diesem Hintergrund werden der Stand der Diagnostik und die derzeit wichtigen Behandlungskonzepte
umrissen, und zwar die psychodynamischen, verhaltenstherapeutischen und klientenzentrierten Ans?tze. Es wird dargelegt, welche
Antworten es auf die Frage gibt, was das angemessene therapeutische Setting ist, insbesondere mit Blick auf station?re Behandlungskonzepte.
Die vorliegenden empirischen Studien best?tigen die Wirksamkeit von Psychotherapie bei Borderline-St?rungen. Die geringe Zahl
der Studien belegt aber auch die Schwierigkeit der empirischen Forschung in diesem Bereich. Der abschlie?ende Ausblick in
die Zukunft der Psychotherapie der Borderline-Pers?nlichkeitsst?rungen prognostiziert eine weitere Zunahme von Pers?nlichkeitsst?rungen
im Spektrum psychiatrischer Erkrankungen und eine zunehmende Differenzierung des Behandlungsangebots bzw. Spezialisierung
der Behandler.
相似文献
244.
The diallel cross genetic design was employed to determine the pattern of inheritance of male-male agonistic behavior in laboratory mice. The results indicated strong strain differences in agonistic behaviors and strain ranks that replicated previous findings. The genetic analysis showed the presence of additive and nondirectional dominance effects on the behaviors measured. This pattern has been characterized as indicating the action of stabilizing selection and indicates that the trait has not been under directional selection. 相似文献
245.
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247.
For decades, sequential lineups have been considered superior to simultaneous lineups in the context of eyewitness identification. However, most of the research leading to this conclusion was based on the analysis of diagnosticity ratios that do not control for the respondent’s response criterion. Recent research based on the analysis of ROC curves has found either equal discriminability for sequential and simultaneous lineups, or higher discriminability for simultaneous lineups. Some evidence for potential position effects and for criterion shifts in sequential lineups has also been reported. Using ROC curve analysis, we investigated the effects of the suspect’s position on discriminability and response criteria in both simultaneous and sequential lineups. We found that sequential lineups suffered from an unwanted position effect. Respondents employed a strict criterion for the earliest lineup positions, and shifted to a more liberal criterion for later positions. No position effects and no criterion shifts were observed in simultaneous lineups. This result suggests that sequential lineups are not superior to simultaneous lineups, and may give rise to unwanted position effects that have to be considered when conducting police lineups. 相似文献
248.
Changing Me,Changing Us: Relationship Quality and Collective Efficacy as Major Outcomes in Systemic Couple Therapy 下载免费PDF全文
Corina Aguilar‐Raab Dennis Grevenstein Linda Gotthardt Marc N. Jarczok Christina Hunger Beate Ditzen Jochen Schweitzer 《Family process》2018,57(2):342-358
We examine the sensitivity to change in the Evaluation of Social Systems (EVOS) scale, which assesses relationship quality and collective efficacy. In Study 1 we conducted a waitlist‐control, short‐term couple therapy RCT study (N = 43 couples) with five systemic therapy sessions treating communication and partnership problems; our intent was to provide high external validity. Construct validity of EVOS was assessed by comparison with additionally applied scales (Family Scales; Outcome Questionnaire, OQ‐45.2). In Study 2, N = 332 individuals completed an experiment with high internal validity in order to verify sensitivity to change in three different social contexts. Results from Study 1 revealed a significant increase in relationship quality in the treatment group directly after treatment, as compared to the control group. Sensitivity to change was slightly better for EVOS than for other measures. While this positive change could not be fully sustained between posttreatment and a 4‐week follow‐up, EVOS score did not fall below baseline and pretreatment levels, supporting moderate‐to‐large sensitivity to change. Study 2 supported high sensitivity to change in EVOS for couple relations, family relations, and work‐team relationships. Therefore, EVOS can be used as an outcome measure to monitor the process of systemic interventions focusing on relationship quality and collective efficacy. Due to its sensitivity to change, EVOS can provide evidence for treatment success with regard to relationship aspects. 相似文献
249.
Previous studies have shown that the localization of the perceived onset position of a moving target varies with the trial context. When the moving target appeared at predictable positions to the left or right of fixation (constant context), localization judgments of the perceived onset positions were essentially displaced in motion direction (Fröhlich effect). In contrast, when the target appeared at unpredictable positions in the visual field (random context), localization judgments were at least drastically reduced. Four explanations of this influence of trial context on localization judgments were examined in three experiments. Findings ruled out an overcompensation mechanism effective in random-context conditions, a predictive mechanism effective in constant-context conditions and a detrimental mechanism originating from more trial repetitions in constant-context conditions. Instead, the results indicated that different attentional allocations are responsible for the localization differences. They also demonstrated that attentional mechanisms are at the basis of the Fröhlich effect. 相似文献
250.
Jochen Müsseler Wilfried Kunde Detlef Gausepohl Herbert Heuer 《Journal of Cognitive Psychology》2013,25(2):211-231
Responding to a stimulus is faster and more accurate when stimulus location and response location spatially correspond than when they do not correspond (stimulus–response compatibility). In five experiments this standard compatibility effect is examined when using a T-shaped lever as a tool. Handling the lever allowed distinguishing body-related action effects (e.g., the tactile feedback from the moving finger) from external action effects (e.g., reaching at the stimulus with the lever's end-point). Results showed that the spatial relationship between stimulus and the direction of the hand movement (S-R compatibility) as well as the relationship between the stimulus and the functional end-points of the tool (S-E compatibility) determine performance. More precisely, responses were fast and less error prone when both kinds of compatibility did correspond than when they did not correspond. 相似文献