Solomon L J, Brehony K A
Biofeedback Self Regul. 1979 Mar;4(1):81-6. doi: 10.1007/BF00998951.
The present case study investigated the effects of competing task demands on biofeedback training to reduce frontalis muscle tension. Baseline levels of frontalis muscle tension were recorded for relaxation and problem solving. The subject was trained to decrease muscle tension with biofeedback for the problem-solving task alone. The results indicated that EMG training during problem-solving was successfully accomplished. Frontalis muscle tension during relaxation baseline did not change as a result of reductions in muscle tension during problem-solving feedback training. This suggests that the decrease of muscle tension cannot be attributed to reductions in overall muscle tension levels. Instead, training was specific to the problem-solving feedback phases. Additionally, it was found that accuracy in problem-solving did not decline as a result of simultaneous feedback training. Thus EMG biofeedback training can be accomplished and exercised without disruption of ongoing mental activity.
本案例研究调查了相互竞争的任务需求对生物反馈训练以降低额肌肌肉张力的影响。记录了放松和解决问题时额肌肌肉张力的基线水平。仅针对解决问题任务，对受试者进行生物反馈训练以降低肌肉张力。结果表明，解决问题过程中的肌电图训练成功完成。解决问题反馈训练期间肌肉张力降低，而放松基线期间的额肌肌肉张力并未改变。这表明肌肉张力的降低不能归因于整体肌肉张力水平的降低。相反，训练特定于解决问题的反馈阶段。此外，还发现同时进行反馈训练并不会导致解决问题的准确性下降。因此，肌电图生物反馈训练可以在不干扰正在进行的心理活动的情况下完成和实施。
