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101.
Previous studies have shown that spatial attention prolongs the perceived duration of visual stimuli. Chen and O'Neill (Perception & Psychophysics, 63, 1229-1238, 2001) reported, however, the reversed result and thus challenged the generality of this attention effect. We therefore reinvestigated the influence of spatial attention on the perceived duration of visual stimuli in various experimental settings. In five experiments, perceived duration was longer for validly cued stimuli; thus, spatial attention was found to prolong perceived duration. In a further experiment, the specific conditions were such that neither the attention effect nor the reversed pattern, as found by Chen and O'Neill, emerged. Although we cannot provide a conclusive account of why Chen and O'Neill observed the reversed attention effect, the present results reinforce the generality of the spatial attention effect on perceived duration but also make advisable a systematic examination of the factors that might modulate this effect. 相似文献
102.
Researchers have begun to use response times (RTs) to emotion items as an indirect measure of emotional clarity. Our first aim was to scrutinise the properties of this RT measure in more detail than previously. To be able to provide recommendations as to whether (and how) emotional intensity – as a possible confound – should be controlled for, we investigated the specific form of the relation between emotional intensity and RTs to emotion items. In particular, we assumed an inverted U-shaped relation at the item level. Moreover, we analysed the RT measure’s convergent validity with respect to individuals’ confidence in their emotion ratings. As a second aim, we compared the predictive validity of emotional clarity measures (RT measure, self-report) with respect to daily emotion regulation. The results of three experience sampling studies showed that the association between emotional intensity and RT followed an inverted U shape. RT was in part related to confidence. Emotional clarity measures were unrelated to reappraisal. There was some evidence that lower emotional clarity was related to a greater use of suppression. The findings highlight that emotional intensity and squared emotional intensity should be controlled for when using the RT measure of emotional clarity in future research. 相似文献
103.
Working memory deficits in transgenic rats overexpressing human adenosine A2A receptors in the brain
Giménez-Llort L Schiffmann SN Shmidt T Canela L Camón L Wassholm M Canals M Terasmaa A Fernández-Teruel A Tobeña A Popova E Ferré S Agnati L Ciruela F Martínez E Scheel-Kruger J Lluis C Franco R Fuxe K Bader M 《Neurobiology of learning and memory》2007,87(1):42-56
Adenosine receptors in the central nervous system have been implicated in the modulation of different behavioural patterns and cognitive functions although the specific role of A(2A) receptor (A(2A)R) subtype in learning and memory is still unclear. In the present work we establish a novel transgenic rat strain, TGR(NSEhA2A), overexpressing adenosine A(2A)Rs mainly in the cerebral cortex, the hippocampal formation, and the cerebellum. Thereafter, we explore the relevance of this A(2A)Rs overexpression for learning and memory function. Animals were behaviourally assessed in several learning and memory tasks (6-arms radial tunnel maze, T-maze, object recognition, and several Morris water maze paradigms) and other tests for spontaneous motor activity (open field, hexagonal tunnel maze) and anxiety (plus maze) as modification of these behaviours may interfere with the assessment of cognitive function. Neither motor performance and emotional/anxious-like behaviours were altered by overexpression of A(2A)Rs. TGR(NSEhA2A) showed normal hippocampal-dependent learning of spatial reference memory. However, they presented working memory deficits as detected by performance of constant errors in the blind arms of the 6 arm radial tunnel maze, reduced recognition of a novel object and a lack of learning improvement over four trials on the same day which was not observed over consecutive days in a repeated acquisition paradigm in the Morris water maze. Given the interdependence between adenosinic and dopaminergic function, the present results render the novel TGR(NSEhA2A) as a putative animal model for the working memory deficits and cognitive disruptions related to overstimulation of cortical A(2A)Rs or to dopaminergic prefrontal dysfunction as seen in schizophrenic or Parkinson's disease patients. 相似文献
104.
Katja Corcoran Tanja Hundhammer Thomas Mussweiler 《Journal of experimental social psychology》2009,45(4):1008-1011
Stereotypes have pervasive, robust, and often unwanted effects on how people see and behave towards others. Undoing these effects has proven to be a daunting task. Two studies demonstrate that procedurally priming participants to engage in comparative thinking with a generalized focus on differences reduces behavioral and judgmental stereotyping effects. In Study 1, participants who were procedurally primed to focus on differences sat closer to a skinhead - a member of a negatively stereotyped group. In Study 2, participants primed on differences ascribed less gender stereotypic characteristics to a male and female target person. This suggests that comparative thinking with a focus on differences may be a simple cognitive tool to reduce the behavioral and judgmental effects of stereotyping. 相似文献
105.
Motivation and Emotion - Individuals’ recall of past emotions is often biased. Previous studies have focused on personality dispositions as predictors of such bias, but not yet on event-level... 相似文献
106.
107.
The present study examined whether the beneficial role of coherently grouped visual motion structures for performing complex (interlimb) coordination patterns can be generalized to synchronization behavior in a visuo-proprioceptive conflict situation. To achieve this goal, 17 participants had to synchronize a self-moved circle, representing the arm movement, with a visual target signal corresponding to five temporally shifted visual feedback conditions (0%, 25%, 50%, 75%, and 100% of the target cycle duration) in three synchronization modes (in-phase, anti-phase, and intermediate). The results showed that the perception of a newly generated perceptual Gestalt between the visual feedback of the arm and the target signal facilitated the synchronization performance in the preferred in-phase synchronization mode in contrast to the less stable anti-phase and intermediate mode. Our findings suggest that the complexity of the synchronization mode defines to what extent the visual and/or proprioceptive information source affects the synchronization performance in the present unimanual synchronization task. 相似文献
108.
Tse et al. (Percept Psychophys 66:1171–1189, 2004) reported that participants tend to overestimate the duration of an oddball stimulus. The size of this effect was much larger
than the one reported by Ulrich et al. (Psychol Res 70:77–87, 2006). More crucially, the effect in the study of Tse et al. already emerged at short standard durations, arguing against the
arousal account proposed by Ulrich et al. This study investigated whether the oddball effect reported by Tse et al. was inflated
by an asymmetry effect, that is, by an asymmetrical distribution of physical comparison durations around the duration of the
standard. Experiment 1 demonstrated that an asymmetry effect could mimic an oddball effect. Therefore, we conducted Experiment
2 to replicate the results by Tse et al. employing not only their original procedure but also an adaptive procedure that rather
avoids an asymmetry effect. Both psychophysical procedures in this experiment revealed an oddball effect, which, however,
was of smaller size than the one reported by Tse et al. Furthermore, this effect emerged only at longer standard durations,
which is in agreement with the arousal account as the underlying mechanism of this robust temporal illusion. 相似文献
109.
Tanja Bipp 《International Journal of Selection & Assessment》2010,18(1):28-39
If people are differentially motivated on the basis of individual differences, this implies important practical consequences with respect to staffing decisions and the selection of the right motivational techniques for managers. In two different samples (students facing graduation vs full‐time employees), the relationships between personality traits and the preference for job characteristics concerning either extrinsic (job environment) or intrinsic job features (work itself) were investigated. Two personality traits [openness to experience and core self‐evaluations (CSE)] were consistently found to be positively related to the preference concerning work characteristics, and CSE showed incremental validity with regard to intrinsic work motivation factors (e.g., experienced meaningfulness, autonomy). Furthermore, age was differentially linked to those job characteristics. The results are discussed with regards to the optimal Person–Job Fit and the practical utility of the personality constructs. 相似文献
110.
Prof. Dr. med. Dr. h.c. Manfred Wolfersdorf Dr. biol. hum. Dipl.-Soz. Dipl.-Soz.-Päd. Rüdiger Vogel Dr. med. Rainer Vogl Dipl.-Psych. Tanja Neuner PD. Dr. biol. hum. Ferdinand Keller Dipl.-Psych. PD Dr. med. Hermann Spießl Dr. med. Christoph Franke 《Forensische Psychiatrie, Psychologie, Kriminologie》2010,4(3):193-201
Suicide prevention especially with psychiatric inpatients is traditionally a very important aspect of psychiatric treatment. During the 1970s and 1980s there was a noticeable increase in so-called hospital suicides in Germany, especially suicides of schizophrenic inpatients. The number of psychiatric inpatient suicides has currently decreased again and a shift to more depressive suicides has also been observed. Furthermore questions which are asked in court are presented and discussed. 相似文献