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181.
Fabrice Perch Jacques Young Paul Robel Neal G. Simon Marc Haug 《Aggressive behavior》2001,27(2):130-138
The neurosteroid dehydroepiandrosterone (DHEA) is a powerful inhibitor of aggression in murine models when given for 15 days and potentially may be useful in the management of inappropriate human aggression. Although the biosynthesis and metabolism of DHEA have been described, little is known about the potential effect of the steroidal environment during sexual differentiation on the subsequent response to DHEA. Whether prenatal androgen exposure influences the subsequent response to DHEA was assessed by comparing the effect of DHEA (80 μg/d) on aggression in female offspring where dams were treated with 1, 10, or 100 μg of testosterone (T) on days 15 to 18 of gestation (Experiment I) or that developed in different uterine positions (Experiment II). The results showed that DHEA decreased attack behavior in general and that the 100‐μg prenatal T treatments enhanced the antiaggressive effect of this neurosteroid. Neither the lower doses of exogenously administered T nor the uterine position led to an enhanced response to DHEA. In addition, whether DHEA produced changes in social and nonsocial activities was examined. In the 100‐μg T females, DHEA increased the duration of the former and decreased the frequency and duration of the latter, indicating that it was not a general decrement in behavioral expression that mediated the enhanced response to the antiaggressive effect of DHEA. In the second experiment, DHEA treatment led to increased frequencies of social nonaggressive and nonsocial activities. However, the uterine positions × treatment interactions were not significant, demonstrating that contiguity to male fetuses did not differentially affect the response to DHEA. Aggr. Behav. 27:130–138, 2001. © 2001 Wiley‐Liss, Inc. 相似文献
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Young Yun Kim 《人类交流研究》2014,40(2):188-208
This message‐system and cultivation analysis investigated the influence of local news on the host receptivity of native‐born “Plainstown” residents toward immigrants. The message‐system analysis revealed that regional television and newspaper immigration coverage was more pessimistic, while local newspaper immigration coverage was more optimistic. A cultivation analysis confirmed that attention to pessimistic coverage interacted with conversations about immigration to reduce host receptivity. This research contributes to the study of cross‐cultural adaptation by constructing and validating a measure of Y. Y. Kim's (2001) concept of host receptivity. By demonstrating that second‐order cultivation is the product of on‐line cognitive processes, this research provided additional validation of Shrum's (2004) online model of second‐order cultivation. Findings suggest that optimistic immigration news frames may facilitate host receptivity. 相似文献
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Using the breath as a vehicle for accessing psychological material is a topic rarely discussed in the counseling literature, despite the use of conscious engagement with the breath by many spiritual traditions for the purpose of personal transformation. This article describes 3 types of conscious breathing (circular breathing, conscious connected breathing, and fast and full breathing) and the use of therapeutic breathwork within the counseling process. The authors describe the many facets of the breathwork experience, provide a case study, and address clinical considerations when engaging in breathwork with clients. 相似文献
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The present study attempted to determine if during short-duration movements visual feedback can be processed in order to make adjustments to changes in the environment. The effect that varying the importance of monitoring target position has on the relative importance of vision of hand and vision of target (Carlton 1981a; Whiting and Cockerill 1974) was also examined. Subjects performed short- (150 ms) and longer-duration (330 ms) aimed hand movements under four visual feedback conditions (lights-on/lights-off by target-on/target-off) to stationary and moving targets. For the lights-off and target-off conditions, the lights and target, respectively, were extinguished 50 ms after movement initiation. For all moving-target conditions, the target started to move as the movement was initiated. Subjects were able to process visual information in 165 ms, as movement endpoints were biased in the direction of target motion for movements of this duration. Removing visual feedback 50 ms after movement initiation did not alter this finding. Subjects performed equally well with target and lights on or off, independent of whether the target remained stationary or moved. Presumably, during the first 50 ms of the movement subjects received sufficient visual information to aid in movement control. 相似文献