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881.
Lindsay P. Bodell Yu Cheng Jennifer E. Wildes 《Suicide & life-threatening behavior》2019,49(2):520-528
Anorexia nervosa (AN) is an eating disorder characterized by severe food restriction resulting in low body weight and an intense fear of gaining weight. This disorder has one of the highest suicide rates of any psychiatric illness; however, few studies have investigated prospective predictors of suicide ideation (SI) in this population. Quality‐of‐life impairment may be particularly relevant for understanding suicide risk in AN, given associations with SI in other psychiatric disorders and associations with chronicity and severity in AN. This study explored associations between eating disorder‐related impairment and SI in individuals with AN (n = 113) who completed assessments at treatment discharge and 3, 6, and 12 months after discharge. Greater psychological impairment predicted future occurrence of SI controlling for age, depression, history of SI, and eating disorder variables. Associations were specific to psychological impairment as other domains of impairment did not predict SI over time. Findings highlight the potential importance of targeting interpersonal–psychological consequences of AN to decrease future suicide risk. 相似文献
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R. F. Westbrook J. Homewood K. Horn J. C. Clarke 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1983,35(1):13-33
Five experiments employed a toxiphobia conditioning paradigm to examine the strengths of odour and flavour aversions when conditioned separately and in compound. When conditioned in compound, odour aversions were stronger than when conditioned separately, i.e., the flavour potentiated the odour (Experiment Ia), but flavour aversions were weaker than when conditioned separately, i.e., the odour attenuated the flavour (Experiment Ib). The duration of exposure to the reinforced compound governed the nature of the interaction between the components: at a brief exposure, the flavour overshadowed the odour; at a long exposure, the flavour potentiated the odour (Experiment II). The remaining experiments examined the mechanism subserving the potentiation effect. Experiment III demonstrated that extinction of the flavour associate of the odour attenuated the odour aversion but further conditioning of the flavour did not strengthen the odour aversion. Experiment IV confirmed this effect of extinction but also found a comparable attenuation of the odour aversion from extinction of a separately conditioned flavour. Experiment V examined the previous failure to influence the strength of the odour aversion by strengthening the flavour aversion. In this experiment, conditioning the flavour associate or a separately conditioned flavour with a more potent US augmented the strength of the odour aversion. The results did not provide support for the idea that the potentiation phenomenon reflects the formation of within-compound associations but did indicate that a potentiated odour aversion could be modulated by manipulations designed to alter the US representation. 相似文献
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