Defensiveness and perception of external inspiratory resistive loads in asthma.
Defensiveness and perception of external inspiratory resistive loads in asthma.
复制标题
哮喘中外部吸气阻力负荷的防御和感知。
DOI：
10.1023/a:1025551532756
复制
发表时间：
1997
影响因子：
3.1
通讯作者：
Hochron,S
中科院分区：
文献类型：
--
作者：
Isenberg,S;Lehrer,P;Hochron,S
This study examined the relationship between defensiveness, as measured by the Marlowe–Crowne Social Desirability Scale (MCSDS), and the perception of an externally applied respiratory resistance among people with asthma. Thirty asthmatic adults breathed through nine levels of inspiratory resistive load. Participants higher on the MCSDS were less accurate than others in psychophysical magnitude estimates of resistive load, and showed a reduced relationship between the physical load and the quality of respiratory sensations associated with exposure to the resistors. Defensive subjects also showed a differentially high increase in correlation between unpleasantness of respiratory sensations and resistance levels after receiving parenteral naloxone. These findings are consistent with the hypothesis that defensiveness may increase risk of asthma morbidity, due to inaccuracy in detecting sensations of dyspnea during asthma exacerbations. The inaccuracy may be caused by elevated endogenous opioids among defensive individuals.
