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661.
Bumblebees are capable of rapidly learning discriminations, but flexibility in bumblebee learning is less well understood. We tested bumblebees (Bombus impatiens) on a serial reversal learning task. A serial reversal task requires learning of an initial discrimination between two differentially rewarded stimuli, followed by multiple reversals of the reward contingency between stimuli. A reduction in errors with repeated reversals in a serial reversal task is an indicator of behavioural flexibility. Bees were housed in a large indoor environment and tested during foraging flights. Testing free-flying bees allowed for large numbers of trials and reversals. All bees were trained to perform a simultaneous discrimination between two colours for a nectar reward, followed by nine reversals of this discrimination. Results showed that bumblebees reduced errors and improved their performance across successive reversals. A reduction in perseverative errors was the major cause of the improvement in performance. Bees showed a slight increase in error rate in their final trials, perhaps as a consequence of increasing proactive interference, but proactive interference may also have contributed to the overall improvement in performance across reversals. Bumblebees are thus capable of behavioural flexibility comparable to that of other animals and may use proactive interference as a mechanism of behavioural flexibility in varying environments. 相似文献
662.
While a number of studies show that the flow experience is related to different outcomes at the individual level, the role of flow in work teams remains unclear. This study contributes to the advancement of knowledge on flow by testing the relationships between this psychological state, team goal commitment and team performance. Data were gathered from 85 teams comprised of graduate and undergraduate students who participated in a project management simulation. The results show that the flow experience is positively related to team performance. This relationship is mediated by team goal commitment and moderated by the level of information exchange between team members. In practical terms, the results of this study show that managers should implement interventions fostering the flow experience in their teams, while at the same time encouraging information exchange between members. 相似文献
663.
Caroline Bettenay Anne M. Ridley Lucy A. Henry Laura Crane 《Applied cognitive psychology》2014,28(2):204-214
The present study assessed how children with a range of cognitive abilities fared during a mock cross‐examination. Ninety children (aged 4 to 11 years; 18 with intellectual disabilities, 13 with borderline intellectual disabilities and 59 who were typically developing) witnessed a staged event, participated in an initial forensic interview (a few days later) and were cross‐examined by a barrister‐in‐training (10 months later). During cross‐examination, 98% of all children changed at least one response from their initial interview when challenged. However, group differences in performance (total number of changed responses, ‘resistance’ to challenges), controlling for age and memory for event details, were not significant or did not prove reliable at the level of individual group contrasts. Overall, little robust evidence for group differences in performance on cross‐examination could be identified, and memory for event details was the most reliable predictor of performance. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
664.
665.
Caroline Closon 《Psychologie du Travail et des Organisations》2011,17(1):43-56
This study proposes to apply the paradigm of Churchill in the case of the adaptation in french and validation of the Maignan and Ferrell scale (1999) based on the model developed by Carroll (1979). This model proposes to distinguish four principles of social responsibility: economic, legal, ethical and philanthropic responsibility. Four factors were highlighted in a first exploratory study conducted among 320 workers. This structure was confirmed during a second confirmatory investigation among 287others workers. If the four identified factors do not match exactly to the theoretical chosen model, they bring value to support the differences in social responsibility between the internal actors and external actors. 相似文献
666.
A substantial amount of empirical and theoretical debate remains concerning the extent to which an ability to orient with
respect to the environment is determined by global (i.e., principal axis of space), local (i.e., wall lengths, angles), and/or
view-based (i.e., stored representation) accounts. We developed an orientation task that allowed the manipulation of the reliability
of the principal axis of space (i.e., searching at the egocentric left- and/or right-hand side of the principal axis) between
groups while maintaining goal distance from the principal axis, local cues specifying the goal location (i.e., short wall
left, short wall right, and obtuse angle), and visual aspects of the goal location consistent across groups. Control and test
trials revealed that participants trained with a reliable principal axis of space utilized both global and local geometric
cues, whereas those trained with an unreliable principal axis of space utilized only local geometric cues. Results suggest
that both global and local geometric cues are utilized for reorientation and that the reliability of the principal axis of
an enclosure differentially influences the use of geometric cues. Such results have implications for purely global-based,
purely local-based, and purely view-based matching theoretical accounts of geometry learning and provide evidence for a unified
orientation process. 相似文献
667.
668.
Two experiments investigated the validity of the Autism Quotient (AQ) scale for measuring traits associated with Autism Spectrum Disorders (ASD) in a population of male university students. Both studies found evidence that individuals who scored higher on the AQ questionnaire performed in a similar way to individuals with ASD on tasks with a perceptual component. Experiment 1 demonstrated a difference in the degree to which higher scoring AQ individuals performed on a perceptual learning task; with higher AQ scorers showing no advantage for familiar over novel items less. In Experiment 2, higher scorers showed fewer errors when judging the elements, as opposed to the global configuration, of a Navon task letter. Both of these patterns of results had previously been noted in individuals with ASD. These results suggest that the AQ may have some validity in identifying individuals in the nonclinical population with similar performance profiles to those with ASD. 相似文献
669.
Research on resiliency and recovery in forensic psychiatric patients is still limited. Information pertaining to factors associated with successful community reintegration would contribute to a more comprehensive assessment of functioning and informed treatment planning that fits within a recovery approach of service provision. Using a retrospective design involving file reviews and a 3-year follow-up period, the authors investigated the rate of successful/unsuccessful community reintegration (defined by the presence or absence of an absolute discharge/readmission to hospital) in female forensic psychiatric patients (N = 48). The study evaluated the extent to which the risk and protective factors captured in the Short-Term Assessment of Risk and Treatability (START) predicted a range of positive and negative outcomes in the study sample. Results showed that 47.9% of the women qualified as having successfully reintegrated into the community, with the remaining 52.1% qualifying as still being in recovery. Successful individuals possessed significantly more protective factors and significantly fewer risk factors than individuals still in recovery. Furthermore, both the vulnerability and the strength scale of the START demonstrated good predictive validity, however we did not find evidence of incremental validity of the strength scale. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
670.
The impact of epilepsy on quality of life (QoL) is well-documented. The ability of epileptic seizures to alter the conscious states of patients is also well established. Although there is much research on the QoL of people with epilepsy, few researchers have looked specifically at the effect of sudden, unanticipated alterations of consciousness on QoL. This lack of systematic studies of consciousness alterations and QoL in epilepsy limits our ability to shed light on this interrelation. In this article, with these limitations in mind, we focus on studies of newer AEDs. We review the evidence as to whether a significant reduction (typically more than 50%) in seizures that induce alterations of consciousness, as a result of switching to one of the newer AEDs, leads to improvements in QoL. We draw on this literature to speculate on the relationship between ictal consciousness alterations and poor QoL in epilepsy, to identify contributory and confounding factors and to highlight implications for future research. We suggest that an understanding of how factors associated with consciousness impairment affect QoL could help the treatment and management of these patients. 相似文献