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131.
Biases against creativity seem to be activated when people are motivated to reduce uncertainty. Drawing on the appraisal model of emotion, this study tested whether and how emotions with varying levels of uncertainty appraisals affect biases against creativity. This experimental study showed that fear, characterized by a high-uncertainty appraisal, promoted implicit, but not explicit, biases against creativity more strongly than low-uncertainty emotions such as anger and happiness. Compared with individuals who experienced anger and happiness, those who experienced fear provided lower creativity ratings because of their implicit biases against creativity. These results highlight the importance of considering emotions to understand the individuals’ biases against creativity and their recognition of creative ideas. 相似文献
132.
Y. Joon Choi Joe Phua Kelli Jo Armstrong Soonok An 《Journal of aggression, maltreatment & trauma》2017,26(8):920-936
Korean American (KA) immigrants experiencing intimate partner violence (IPV) underutilize existing services, but instead rely on KA clergy for assistance. However, there had not yet been an intervention curriculum developed for KA clergy to help them address IPV in their congregations. There was a lack of understanding regarding what needed to be included in an intervention curriculum for KA clergy, as well as the most effective form of curriculum design and delivery for such an intervention. This article discusses the process of developing an online IPV intervention curriculum for KA clergy to increase their capacity for IPV prevention and intervention within their congregations. Researchers developed Korean Clergy for Healthy Families by incorporating feedback from expert consultants and engaging study participants. The result is an IPV curriculum that speaks to participants’ cultural values and religious beliefs, and identifies barriers KA clergy experience when confronted with IPV. Specific steps to assist those who would want to develop culturally appropriate interventions are provided. 相似文献
133.
Sujung Cho Jun Sung Hong Dorothy L. Espelage Kyung-Shick Choi 《Journal of aggression, maltreatment & trauma》2017,26(3):297-315
Peer victimization is a serious problem, and understanding where, with whom, and how long victims spend their time is important. Applying the lifestyle routine activities theory (LRAT), this study examines the association between 4 components of LRAT and physical and nonphysical peer victimization. Using the 2007 National Crime Victimization Survey, we examined Poisson and negative binomial regression models to explain whether physical and nonphysical peer victimization was affected by measures of routine activities. Our findings indicate that students’ exposure and proximity to motivated offenders, school environment, capable guardianship, and target attractiveness were associated with risk of peer victimization. Findings also reveal that risk factors varied depending on the type of victimization. 相似文献
134.
Hoon-Seok Choi Leigh Thompson 《Organizational behavior and human decision processes》2005,98(2):622-132
The purpose of this study was to investigate the impact of membership change on group creativity. Based on the literature suggesting stimulating effects of membership change in groups, we hypothesized that membership change would enhance the creativity of groups. Membership change involved randomly rotating a subset of group members among groups during a series of creative tasks. Using an idea generation paradigm, we compared the creativity of open groups (i.e., groups that experienced a change in their membership across tasks) with that of closed groups (i.e., groups whose membership was invariant across tasks) in two experiments. In both experiments, we found that open groups generated more ideas and more different kinds of ideas than did closed groups. Moreover, Experiment 2 revealed that it was the productivity of “newcomers” (measured in terms of their creative idea generation in a previous task) that exerted a positive impact on groups. We also found that the entry of more productive newcomers increased the creativity of “oldtimers” (i.e., people who remained in one group across tasks). Implications for the role of membership change in groups are discussed. 相似文献
135.
Nicholas W. Kohn Paul B. Paulus YunHee Choi 《Journal of experimental social psychology》2011,47(3):554-561
Two experiments were conducted to explore the process of building on ideas in brainstorming. Although this is presumed to be an important role of brainstorming, this has never been explored experimentally. In one experiment individual and group brainstormers generated ideas which were subsequently presented to these same individuals and groups to combine and build on for additional ideas, either as groups or individuals. The combination process was influenced by whether the participants had previously brainstormed alone or in groups and the phase of the combination period (early vs. late). In a second study participants were presented lists of rare or common ideas to combine and build on either as individuals or groups. Although groups generated fewer combinations than nominal groups, they generated more novel and feasible combinations when combining rare ideas. These findings indicate that groups are able to benefit from the exchange process in building on each other's ideas and are interpreted in the context of past research on idea generation and evaluation in groups. 相似文献
136.
Holden JG Choi I Amazeen PG Van Orden G 《Journal of experimental psychology. Human perception and performance》2011,37(3):935-948
Variability of repeated measurements in human performances exhibits fractal 1/? noise. Yet the relative strength of this fractal pattern varies widely across conditions, tasks, and individuals. Four experiments illustrate how subtle details of the conditions of measurement change the fractal patterns observed across task conditions. The results call into question whether measurement noise and measured signal can be distinguished in human performance, suggesting that human performance is inextricably entangled with measurement context. Perhaps, though, a hypothesis of soft assembly of human performance can circumvent the conundrum (e.g., Turvey, 2007). 相似文献
137.
This study investigated the EMG characteristics and the kinematics of the trunk and lower extremity during the sit-to-stand (STS) task while wearing 1-, 4-, and 8-cm high-heeled shoes. We examined differences in the EMG data of the internal oblique, erector spinae, medial hamstring, and rectus femoris muscles during the STS task. The motion of the hip joint during an STS task was measured with a NorAngle Electrogoniometer System. Twelve young healthy women were recruited to this study. EMG characteristics and the hip joint angle were recorded during the performance of an STS task by subjects wearing high-heeled shoes of three different heel heights. The muscle onset time and EMG activity during this task were analyzed. In 8-cm high-heeled shoes, the onset time for the erector spinae muscle was significantly delayed, and the onset latency for the medial hamstring and the rectus femoris was significantly decreased. There was increased activity in the erector spinae and rectus femoris muscle during this task when wearing 8-cm high-heeled shoes. The initial hip flexion angle at the start point of the STS task did not differ among the 1-, 4-, and 8-cm heel-height conditions, but the trunk flexion angle, corresponding to the displacement between the peak hip flexion and initial hip flexion, was significantly larger in the 8-cm heel-height condition than in the 1- and 4-cm heel-height conditions. The findings suggest that excessive heel height has the potential to induce muscle imbalance during the STS task. 相似文献
138.
The relationships between route-learning strategies and circulating testosterone and estradiol levels were investigated in men and women. Testosterone and estradiol concentrations were measured by salivary assays and route-learning strategies were assessed using a direction-giving paradigm based on a novel map. Testosterone was positively correlated with the use of male-biased route-learning strategies in men, but not in women. These findings suggest sex-specific patterns of relationships between circulating testosterone and spatial processing, which apply to everyday spatial behavior. 相似文献
139.
A methodology developed by Cesari and Newell [Cesari, P., & Newell, K. M. (1999). The scaling of human grip configuration. Journal of Experimental Psychology: Human Perception and Performance 25, 927-935; Cesari, P., & Newell, K. M. (2000). The body-scaling of grip configurations in children aged 6-12 years. Developmental Psychobiology 36, 301-310] was used to delineate the roles of an object's weight (W) and distance (D) as well as the actor's strength (S) in determining the macroscopic action used to reach for the object. Participants reached for objects of five different weights placed at 10 distances. The findings of a single discriminant analysis revealed that when object weight is scaled in terms of each individual's strength and reach distance is scaled in terms of each individual's maximum-seated reach distance, a single discriminant analysis was able to predict 90% of the reach modes used by both men and women. The result of the discriminant analysis was used to construct a body-scaled equation, K=lnD+ln(W/S)/36, similar in form to the one derived by Cesari and Newell, accurately predicted the reach action used. Our findings indicate that Cesari and Newell's method can identify a complex relationship between geometric and dynamic constraints that determine the affordances for different reach actions. 相似文献
140.
Chronic drug use weakens excitatory neocortical input to the nucleus accumbens (NAc). We previously reported that extinction training, a form of inhibitory learning that progressively reduces cocaine-seeking behaviour when reward is withheld, reverses this deficit by up-regulating GluR1 and GluR2/3 subunits of alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) glutamate receptors in the NAc. The level of GluR1 up-regulation is positively associated with a reduction in cocaine seeking, suggesting that extinction-induced up-regulation in AMPA receptors in the NAc opposes motivational influences that maintain cocaine seeking. This hypothesis is supported by the finding that over-expression of GluR1 and GluR2 in the NAc facilitates extinction of cocaine self-administration. Furthermore, a single extinction training session conducted during GluR1 and GluR2 over-expression strongly and selectively attenuates the ability of an environmental stressor to trigger relapse to cocaine seeking long after GluR1 and GluR2 over-expression declines. These results could suggest that excitatory input to the NAc promotes extinction learning, but only when memory is recalled under stressful situations. Recent studies indicate that both environmental stress and the frustrative stress of withholding reward during extinction of drug self-administration induce similar neurochemical events in the NAc. These neurochemical events could impose a "state-dependency" on extinction learning such that subsequent exposure to stress acts as a cue to enhance retrieval of extinction memory. Our results suggest that extinction-induced up-regulation in NAc AMPA receptors acts reciprocally to facilitate state-dependent extinction learning, as stressful situations evoke extinction memories that exert powerful inhibitory control over drug-seeking behaviour. These results may have important therapeutic implications for behaviour-based approaches aimed at treating drug addiction. 相似文献