Weise Cornelia, Heinecke Kristin, Rief Winfried
Department of Clinical Psychology and Psychotherapy, Faculty of Psychology, University of Marburg, Gutenbergstrasse 18, Marburg, Germany.
Appl Psychophysiol Biofeedback. 2008 Sep;33(3):149-59. doi: 10.1007/s10484-008-9058-x. Epub 2008 Jul 4.
The etiological tinnitus models propose that suffering can be caused and aggravated by heightened physiological arousal. Therefore psychophysiological treatments are applied. Stability of the measured parameters is essential for the use of biofeedback as well as to permit the attribution of changes to the administered treatment. The aim of our study was to investigate the 3-month reproducibility of psychophysiological parameters in 60 tinnitus patients. Using a repeated-measures design, the activity of these parameters was assessed twice during various stress and relaxation trials. The results showed that the measurements of frontalis, masseter and trapezius muscles were stable, while for the sternocleidomastoid, the skin conductance level (SCL) and the skin temperature retest-stability could not be evidenced. For all parameters, test-retest stability was weak for the relative scores. In conclusion, our study has important implications for applied psychophysiology research: (1) the measurement of EMG assessed in a clinical sample is stable over a 3-month interval; (2) in contrast, the measurements of SCL and skin temperature as well as all relative scores are less stable; and (3) the stability of EMG-parameters in our sample gives first hints that physiological changes can be attributed to an administered biofeedback treatment but further research is required.
病因性耳鸣模型表明，生理唤醒增强会引发并加重痛苦。因此采用了心理生理治疗方法。测量参数的稳定性对于生物反馈的应用以及将变化归因于所实施的治疗至关重要。我们研究的目的是调查60名耳鸣患者心理生理参数在3个月内的可重复性。采用重复测量设计，在各种应激和放松试验期间对这些参数的活动进行了两次评估。结果显示，额肌、咬肌和斜方肌的测量结果稳定，而胸锁乳突肌、皮肤电导水平（SCL）和皮肤温度的重测稳定性未得到证实。对于所有参数，相对分数的重测稳定性较弱。总之，我们的研究对应用心理生理学研究具有重要意义：（1）在临床样本中评估的肌电图测量在3个月间隔内是稳定的；（2）相比之下，SCL和皮肤温度的测量以及所有相对分数的稳定性较差；（3）我们样本中肌电图参数的稳定性初步表明生理变化可归因于所实施的生物反馈治疗，但还需要进一步研究。
