Effects of feedback on the perception of inspiratory resistance in children with persistent asthma: a signal detection approach.
Effects of feedback on the perception of inspiratory resistance in children with persistent asthma: a signal detection approach.
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DOI：
10.1097/psy.0b013e3182a8bcde
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发表时间：
2013-10
影响因子：
3.3
通讯作者：
Black HR 2nd
中科院分区：
文献类型：
--
作者：
Harver A;Kotses H;Ersek J;Humphries CT;Ashe WS Jr;Black HR 2nd
准确区分哮喘发作增加了有效管理的可能性。本研究的目的是检查反馈在信号检测任务中对持续性哮喘儿童气流阻塞增加的感知的影响。在155名8 - 15岁的持续性哮喘儿童中评估反馈训练对抵抗负荷感知的影响。每个孩子参加了大约每两周一次的四个实验课程，一个初始课程，然后是三个训练课程。在初始阶段，确定每个儿童的呼吸阻力阈值。随后，每个孩子都被随机分配到两个信号检测范式的阻力负荷训练条件之一：即时性能反馈的训练或没有性能反馈的训练。在初始阶段确定的呼吸阻力阈值在两组之间是相等的。反馈条件下的儿童更准确地区分了呼吸阻力增加的存在和不存在（206 ± 48对180 ± 39正确反应，p < .001），随着时间的推移，两组之间的差异随着训练的增加而增加（139 ± 34对120 ± 29正确反应，p < .001）。两组之间的反应时间和置信度评分相同，两组之间的呼吸模式没有差异。反馈训练可改善哮喘儿童的呼吸感觉，这一发现对哮喘自我管理策略具有启示意义。
Accurate discrimination of asthma episodes increases the likelihood they will be managed effectively. The purpose of the study was to examine the effect of feedback in a signal detection task on perception of increased airflow obstruction in children with persistent asthma. The effect of feedback training on the perception of resistive loads was evaluated in 155 children with persistent asthma between 8 and 15 years of age. Each child participated in four experimental sessions that occurred about once every 2 weeks, an initial session followed by three training sessions. During the initial session, the threshold resistance to breathing was determined for each child. Subsequently, each child was randomly assigned to one of two resistive load training conditions in a signal detection paradigm: training with immediate performance feedback or training with no performance feedback. The threshold resistance to breathing, determined in the initial session, was equivalent between groups. Children in the feedback condition discriminated more accurately between both the presence and absence of increases in the resistance to breathing (206 ± 48 vs. 180 ± 39 correct responses, p < .001), and differences over time between groups increased reliably as a function of training (139 ± 34 vs. 120 ± 29 correct responses, p < .001). Response times and confidence ratings were equivalent between groups, and no differences in breathing patterns were observed between groups. Feedback training results in improved perception of respiratory sensations in children with asthma, a finding with implications for strategies of asthma self-management.