Fairclough Stephen H, Venables Louise
School of Psychology, Liverpool John Moores University, 15-21 Webster Street, Liverpool L3 2ET, UK.
Biol Psychol. 2006 Jan;71(1):100-10. doi: 10.1016/j.biopsycho.2005.03.007. Epub 2005 Jun 22.
Biocybernetic systems utilise real-time changes in psychophysiology in order to adapt aspects of computer control and functionality, e.g. adaptive automation. This approach to system design is based upon an assumption that psychophysiological variations represent implicit fluctuations in the subjective state of the operator, e.g. mood, motivation, cognitions. A study was performed to investigate the convergent validity between psychophysiological measurement and changes in the subjective status of the individual. Thirty-five participants performed a demanding version of the Multi-Attribute Task Battery (MATB) over four consecutive 20-min blocks. A range of psychophysiological data were collected (EEG, ECG, skin conductance level (SCL), EOG, respiratory rate) and correlated with changes in subjective state as measured by the Dundee Stress State Questionnaire (DSSQ). MATB performance was stable across time-on-task; psychophysiological activity exhibited expected changes due to sustained performance. The DSSQ was analysed in terms of three subjective meta-factors: Task Engagement, Distress and Worry. Multiple regression analyses revealed that psychophysiology predicted a substantial proportion of the variance for both Task Engagement and Distress but not for the Worry meta-factor. The consequences for the development of biocybernetic systems are discussed.
生物控制论系统利用心理生理学的实时变化来调整计算机控制和功能的各个方面，例如自适应自动化。这种系统设计方法基于这样一种假设，即心理生理变化代表了操作者主观状态的隐性波动，例如情绪、动机、认知。进行了一项研究以调查心理生理测量与个体主观状态变化之间的收敛效度。35名参与者在连续四个20分钟的时间段内完成了一个难度较大的多属性任务组块（MATB）。收集了一系列心理生理数据（脑电图、心电图、皮肤电导水平（SCL）、眼电图、呼吸频率），并将其与由邓迪压力状态问卷（DSSQ）测量的主观状态变化进行关联。MATB的表现随着任务时间的推移而稳定；由于持续执行任务，心理生理活动呈现出预期的变化。DSSQ根据三个主观元因素进行分析：任务投入、痛苦和担忧。多元回归分析表明，心理生理学预测了任务投入和痛苦这两个元因素的很大一部分方差，但对担忧元因素没有预测作用。讨论了生物控制论系统发展的后果。
