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951.
Tae Hyun Kim Su Sang Lee Junho Oh Sujin Lee 《Journal of applied social psychology》2019,49(10):655-667
Enabling and amplifying the voice of employees creates opportunities for organizational improvement. Prior research has shown that employees' sense of power has impact on their voice behavior. As such, when would employees feel too powerless to speak up in the workplace? The current study investigates the indirect effect of social rejection (via sense of power) on employee voice. We use conservation of resources theory to explain this relationship. Experimental data from two studies demonstrate that participants reminded of social rejection (vs. acceptance) exhibit a lower sense of power. Specifically, we observe that social rejection diminishes a person's sense of power, and that social acceptance does not enhance this sense. That is, social rejection has an indirect effect on employee voice through sense of power. We discuss the theoretical and practical implications of our findings with regard to social rejection, sense of power, and workplace voice behavior. 相似文献
952.
This investigation evaluated how personality traits, self‐efficacy, and outcome expectancies differentially relate to young adult substance use and high‐risk sex. Experiments I (N= 481) and 2 (N= 73) report the development of a new questionnaire to assess self‐efficacy for substance use and sexual behavior. Experiment 3 (N= 375) tested self‐efficacy, outcome expectancies, and trait measures of social conformity and sensation seeking as correlates of substance use and high‐risk sex. Using structural equation modeling, cross‐sectional analyses revealed that positive outcome expectancies had the largest association with substance use, whereas self‐efficacy had the largest association with sexual behavior. Further, personality traits were related to substance use and sexual behavior indirectly through outcome expectancies, with social conformity also having a direct effect on behavior. When examined longitudinally, past alcohol and drug use served as the final pathway by which expectancies and personality impacted substance use, whereas past behavior, self‐efficacy, and social conformity all contributed to high‐risk sex. Results support the utility of different models for explaining, and possibly preventing, young adult substance use and high‐risk sex. 相似文献
953.
954.
Jeanette Hellgren Kotaleski David Lester Kim T Blackwell 《Integrative Physiological and Behavioral Science》2002,37(4):265-292
Classical conditioning of the nictitating membrane response requires a specific temporal interval between conditioned stimulus and unconditioned stimulus, and produces an increase in Protein Kinase C (PKC) activation in Purkinje cells. To evaluate whether biochemical interactions within the Purkinje cell may explain the temporal sensitivity, a model of PKC activation by Ca2+, diacylglycerol (DAG), and arachidonic acid (AA) is developed. Ca2+ elevation is due to CF stimulation and IP3 induced Ca2+ release (IICR). DAG and IP3 result from PF stimulation, while AA results from phospholipase A2 (PLA2). Simulations predict increased PKC activation when PF stimulation precedes CF stimulation by 0.1 to 3 s. The sensitivity of IICR to the temporal relation between PF and CF stimulation, together with the buffering system of Purkinje cells, significantly contribute to the temporal sensitivity. 相似文献
955.
956.
957.
The theory-based model of categorization posits that concepts are represented as theories, not feature lists. Thus, it is interesting that the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV; American Psychiatric Association, 1994) established atheoretical guidelines for mental disorder diagnosis. Five experiments investigated how clinicians handled an atheoretical nosology. Clinicians' causal theories of disorders and their responses on diagnostic and memory tasks were measured. Participants were more likely to diagnose a hypothetical patient with a disorder if that patient had causally central rather than causally peripheral symptoms according to their theory of the disorder. Their memory for causally central symptoms was also biased. Clinicians are cognitively driven to use theories despite decades of practice with the atheoretical DSM. 相似文献
958.
Kim G C Hellemans Yavin Shaham Mary C Olmstead 《Revue canadienne de psychologie expérimentale》2002,56(4):241-252
We examined the role of withdrawal in relapse to drug-seeking and drug-taking by testing the effects of opiate abstinence on extinction behaviour in rats trained to self-administer heroin. Male Long-Evans rats responded for IV heroin under a heterogeneous chain (VI 120 s; FR 1) schedule in which "seeking" responses preceded a "taking" response which produced a drug infusion. Responding was then measured in extinction during acute (6, 12, and 24 hr) and prolonged (3, 6, 12, and 25 day) abstinence. Sucrose consumption and somatic withdrawal were assessed at each testing period. During acute abstinence, responses on the "drug-seeking" manipulandum increased at 24 hr, whereas responses on the "drug-taking" manipulandum increased at 6 hr. Both responses were elevated during the 12-day abstinence test. Sucrose consumption was reduced and somatic withdrawal scores were increased in opiate-experienced rats at each test period. Results suggest that heroin abstinence has different effects on drug-seeking and drug-taking and that these effects do not temporally coincide with somatic measures of opioid withdrawal. 相似文献
959.
Making a life worth living: neural correlates of well-being 总被引:6,自引:0,他引:6
Urry HL Nitschke JB Dolski I Jackson DC Dalton KM Mueller CJ Rosenkranz MA Ryff CD Singer BH Davidson RJ 《Psychological science》2004,15(6):367-372
Despite the vast literature that has implicated asymmetric activation of the prefrontal cortex in approach-withdrawal motivation and emotion, no published reports have directly explored the neural correlates of well-being. Eighty-four right-handed adults (ages 57-60) completed self-report measures of eudaimonic well-being, hedonic well-being, and positive affect prior to resting electroencephalography. As hypothesized, greater left than right superior frontal activation was associated with higher levels of both forms of well-being. Hemisphere-specific analyses documented the importance of goal-directed approach tendencies beyond those captured by approach-related positive affect for eudaimonic but not for hedonic well-being. Appropriately engaging sources of appetitive motivation, characteristic of higher left than right baseline levels of prefrontal activation, may encourage the experience of well-being. 相似文献
960.
Working memory (WM) has been thought to include not only short-term memory stores but also executive processes that operate on the contents of memory. The present study examined the involvement of WM in search using a dual-task paradigm in which participants performed visual search while manipulating or simply maintaining information held in WM. Experiments 1a and 2a involved executive WM tasks that required counting backward from a target digit and sorting a string of letters alphabetically, respectively. In both experiments, the search slopes in the dual-task condition were significantly steeper than those in a search-alone condition, indicating that performing the WM manipulation tasks influenced the efficiency of visual search. In contrast, when information was simply maintained in WM (Experiments 1b and 2b), search slopes did not differ between the single- and dual-task conditions. These results suggest that WM resources related to executive functions may be required in visual search. 相似文献