Effects of the Paced Auditory Serial Addition Task (PASAT) with different rates on autonomic nervous system responses and self-reported levels of stress.
Effects of the Paced Auditory Serial Addition Task (PASAT) with different rates on autonomic nervous system responses and self-reported levels of stress.
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DOI：
10.1111/joor.12257
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发表时间：
2015-05
影响因子：
2.9
通讯作者：
T. Tanosoto;K. Bendixen;T. Arima;John Hansen;A. Terkelsen;Peter Svensson;Peter Svensson
中科院分区：
文献类型：
--
作者：
T. Tanosoto;K. Bendixen;T. Arima;John Hansen;A. Terkelsen;Peter Svensson;Peter Svensson
描述健康人自我报告的由不同速率的节奏听觉连续添加任务 (PASAT) 引起的压力和自主反应水平。 15 名参与者以不同的速率（3·6、2·4、1·6 或 1·2 秒间隔）执行 PASAT 并以随机顺序执行控制任务。评估了 PASAT 的正确反应、自我报告的压力水平和自主反应。 PASAT 率的增加与正确反应的减少 (P < 0·001) 和自我报告的压力水平的增加 (P < 0·001) 相关。对于自主反应，2·4 秒 PASAT 期间，10 个变量与各自的基线相比发生了显着变化；然而，仅在平均 RR 间隔（P < 0·001）、收缩压和舒张压（P = 0·002 和 P = 0·006）以及心输出量（P < 0·001）方面，2·4 秒 PASAT 和对照任务之间相对于基线的相对变化存在显着差异。关于四种 PASAT 之间的比较，3·6 秒 PASAT 和更快的 PASAT 之间相对于基线的相对变化存在显着差异，例如平均 RR 间隔、高频功率和呼吸频率；然而，速度更快的 PASAT 之间没有差异。不同速率的 PASAT 期间的自主反应与较快的 PASAT 非常相似（间隔 < 2·4 s）；然而，与较快的 PASAT 相比，最慢的 3·6 秒 PASAT 引起的自我报告压力和自主神经唤醒明显较少。 PASAT 率的标准化对于自主神经系统功能和自我报告的压力测量的研究可能很重要。未来的研究可能会测试压力、自主反应和疼痛反应之间更复杂的相互作用。
To characterise self-reported levels of stress and autonomic responses in healthy humans evoked by different rates of the Paced Auditory Serial Addition Task (PASAT). Fifteen participants performed PASATs with different rates (3·6-, 2·4-, 1·6- or 1·2-s intervals) and a control task, in random order. Correct responses, self-reported levels of stress and autonomic responses to the PASATs were estimated. Increased PASAT rates were associated with decreases in correct responses (P < 0·001) and increases in self-reported levels of stress (P < 0·001). For autonomic responses, significant changes were seen in 10 variables during 2·4-s PASAT compared with the respective baseline; however, significant differences in relative changes from baseline were found between the 2·4-s PASAT and control task only for mean RR-intervals (P < 0·001), systolic and diastolic blood pressure (P = 0·002 and P = 0·006) and cardiac output (P < 0·001). Regarding comparison between the four PASATs, significant differences in the relative changes from baseline were seen between the 3·6-s PASAT and faster PASATs, for example mean RR-intervals, high-frequency power and respiration rate; however, there were no differences between the faster PASATs. The autonomic responses during the PASATs with different rates were quite similar for the faster PASATs (intervals < 2·4 s); however, the slowest 3·6-s PASAT evoked significantly less self-reported stress and autonomic arousal compared with the faster PASATs. Standardization of the PASAT rate may be important for studies on autonomic nervous system function and self-reported measures of stress. Future studies may test more complex interactions between stress, autonomic responses and pain responses.