心理性应激对词语感受性的影响

以往研究表明个体对词语的感受性受词语情绪效价和个体焦虑状态的影响,为探讨心理性应激源对个体的词语感受性的影响,将38名被试被随机分配到应激组(特里尔社会应激测试作为心理性应激源)和控制组(安慰剂组),经过应激/安慰剂实验处理后,参加词语识别任务,其中词语包括与特里尔社会应激测试相关的情景词和主题词,以及与社会应激测试无关的正性词、中性词和负性词.结果发现:①应激组比控制组有更强烈的应激反应,应激组的主观应激报告和客观应激参数(心率)显著高于控制组;②词语识别任务中,应激组在应激相关情景词和应激相关主题词上的感受性高于控制组;③无论是应激组还是控制组,对无关正性词的感受性都显著高于其他4类词语.表明个体对词语的感受性不仅受词语本身的情绪效价的影响,并且受个体状态性焦虑特征的影响.     

The social brain: Insights from cognitive neuroscience

Cognitive neuroscience has provided powerful tools that now permit the investigation of human social cognition and behavior with unprecedented accuracy. This review summarizes some of the features of the human brain that differentiate it from the brains of other animals, some of the methods used in cognitive neuroscience, and concludes with an example of research from the author’s own lab that implicates the amygdala in emotion recognition, social judgment, and autism.