达尔豪斯大学的狗接受过训练，能够检测人类呼吸中的 PTSD 压力，准确率高达 90%。 Dogs at Dalhousie University trained to detect PTSD stress in human breath with 90% accuracy.

加拿大达尔豪斯大学的研究人员训练狗检测人类呼吸中的压力，准确率高达 90%。 Researchers at Dalhousie University in Canada have trained dogs to detect stress in human breath, with a 90% accuracy rate. 这项发表在《过敏前沿》杂志上的研究表明，可以训练狗识别人类呼吸中与 PTSD 发作相关的挥发性有机化合物 (VOC)。 The study, published in the journal Frontiers in Allergy, suggests that dogs can be trained to recognize volatile organic compounds (VOCs) in human breath related to PTSD episodes. 这种方法可以提高创伤后应激障碍（PTSD）援助犬的有效性，并扩大援助犬及其应用的范围。 This approach could improve the effectiveness of PTSD assistance dogs and broaden the range of assistance dogs and their applications.